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School Vacuum Chamber

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Vacuum and Its Formation

Vacuum is called to a space which is free of matter. In such a condition, air molecules which cause pressure are also available. This is an ideal definition of vacuum. Absolute zero pressure is defined in this space. In practice, achievement of such an environment is impossible because there are always some gas molecules; however, achievement of very low pressures is possible. Today, vacuum systems are manufactured that can generate environments capable of very low molecular separation per unit volume. Pressures lower than the pressure of air atmosphere are called vacuum. The word Vacuum is derived from the Latin word Empty. So, the pressure between atmosphere pressure and absolute zero may be considered as the domain of vacuum systems.

This simulator is composed of a vacuum chamber, a motor suckers and some valves. Five different experiment recipes have been developed for this device; using such experiments, the concepts of vacuum and the quality of its effect on the physical phenomena may be taught to students. The lack of pressure and a material environment, the quality of sound and light transfer in vacuum, and transfer of electric current in vacuum are of such cases .

What is Vacuum Chamber?

A chamber which is free of any physical object even air is called a vacuum chamber. According to the scientists, this is impossible because despite making much effort to provide a vacuumed space, still a gas molecule or a very fine dust particle will be found in that. Therefore, although a complete vacuum is not possible, its physical concept includes a space free of any dust or any other physical and thin particle.[/fusion_tab][fusion_tab title=”INTRODUCTION OF COMPONENTS” icon=”fa-file-alt far”]

What is SRL-VC100 Vacuum?

In the space, the environment out of earth aerospace, the first and one of the most important problems for spacecrafts and astronomers is to face with vacuum. Therefore, this phenomenon should be understood correctly. Considering its mission towards development of space culture among the adolescents and youth, Space Research Laboratory of Khajeh Nasireddin Tousi University of Technology decided to provide the interested students with the main and applicable concepts of this environment by designing and manufacturing vacuum environment simulation equipments in the form of SRL-VC100 vacuum chamber. SRL-VC100 vacuum chamber has been designed and manufactured by a group of space experts of the country. This machine which is specially prepared for training and working in the schools will be able to make the students familiar with the effect of this environment on current physical concepts by simulating and providing vacuum conditions.

SRL-VC100 Vacuum Chamber

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What Is the Use of SRL-VC100 Vacuum Chamber?

In order to purposefully work with vacuum chamber, 5 interesting tests have been designed for students based on their knowledge at each educational degree. Each of these tests shows an effect of vacuum environment on physical processes and encourage the students’ knowledge to analyze the causes and its formation procedure. These tests are specifically designed in space research Laboratory to transfer the relevant concepts of the interaction of vacuum space with the main concepts of physics such as volume, temperature, pressure, light, and sound and are implemented in the form of practical experiment for adolescents and youth. These tests include the followings: 1. Vacuum and pressure test; 2. Vacuum and temperature test; 3. Vacuum, sound and light test; 4. Vacuum and wind test; 5. Vacuum and electricity test.

For more information on the training course of working with SRL-VC100 vacuum chamber and its preparation procedure, please contact us through the following address.

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Specifications of SRL-VC100 Vacuum Chamber

SRL-VC100 vacuum chamber is constituted of two main parts including the trunk and vacuum pump and tests equipments as follows: (tables 1, 2, and 3)

Table 1. Trunk
Row Part Name Specifications
1 Glass Chamber Ф=28cm
2 Support Ф=36cm , h=105mm
3 Protective Cap Ф=38cm
4 Pressure Sensor Maximum 1bar
Table 2. Vacuum Pump
FY-3B Model
8 Free Air Diaplacement (CFM)
10 Ultimate Vacuum (Pa)
3/4 Motor (HP)
220V/50Hz Electrical Supply
385x140x280 Dimension LxWxH (mm.)
20.5 Net Weight (kg.)
Table 3. Tests Equipmemnts
Row Part Name
1 Radio and MP3 Player
2 15000 V Transformer
3 Fan and Flag
4 Heater
5 Digital Thermometer
6 Water Chamber
7 Connection Connectors and Communication Wires

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Achievement Creators

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Cold Gas Thrusters

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For making changes in the attitude (or position) of the satellites, considering the level of change and its kind, different actuators can be used. This actuators, by the use of Action and Reaction Principle (Newton’s second principle), can import force to the satellite without relying on any surface. One of the most important of such actuators are thrusters in which after the exit of gas from a nozzle, necessary momentum for rotation (or movement) of satellite is provided. Due to the country’s need and in order to achieve to the designing and manufacturing technology of such actuators, Space Research Laboratory has begun designing and making samples of such actuators in order to be used in micro level satellites. The property of such a model is mentioned in the following table.

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Propulsion subsystem in a satellite is made up of different components whose most important parts are: cold gas tank, regulator, accumulator and thruster (including body, solenoid and nozzle)

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It can be used as attitude control actuator on satellites

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Different control algorithms can be tested by using it

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The possibility of installing and testing on “HAGH 100” & “HOJAT 100″ systems

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The possibility of installing and testing on “HAGH 100” & “HOJAT 100″ systems

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Smaller dimensions and lower weight in recent samples

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Cold Gas Thruster
Operating Pressure 15 bar
Proof Pressure 40 bar
Thrust Rating 1.1 N @ 15 bar
Operating Voltage Range 21 ± 5 VDC
Thermal Capability -40˚C to +60˚C
Coil Resistance 1 Ω @ 21°C
Response Time < 10 msec
Cycle Life > 10000
Mass 84 gr
Body Length 31.48 mm
Outside Diameter 22.50 mm
Accessories of Cold Gas Thruster
Composite Tank
Operating Pressure 30 MPa
Proof Pressure 50 MPa
Volume 9.0 L
Mass 4.8 kg
Regulator
Type Single – Stage EXACT
Inlet Pressure < 300 bar
Outlet Pressure 1.5 / 4 / 10 / 20 bar
Flow Capacity CV = 0.15
Mass 1.10 kg
Driver

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Achievement Creators

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LEO Earth Station

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Earth stations are mainly designed in order to connect to the satellites, receive payload information and send control commands. Along with the advancements of space department technologies, and through developing satellite earth systems which are applicable by spending acceptable money and energy, educational and research programs of space fields at universities and research centers can be developed and boosted. So by having experiences gained through connection with active satellites of space and also by training efficient personnel, when launching satellites, risk and expenses would decrease to a great extent and it would also result in space projects efficiency.Thus space research Laboratory of Khaje-Nasir-e-Din Toosi University has begun designing and launching the first earth station of student satellites called “Jalil 100” in Iran.

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“Jalil 100” earth station is composed of different hardware and software components such as: Directed antenna, all-directions antenna, radio, frequency reducer converter, low-noise amplifier, computer and radio interface, rotor, rotor controller and user program .At “Jalil 100” earth station, all directed antennas are cross yagi and with coverings of UHF and VHF bands they can receive signals.
All-directions antenna is used to connect to unknown or indefinite satellites of UHF band. Radios are also used for producing, receiving and transforming connection signals in the process of navigation and connection with satellites.
In order to receive signals from the satellites which send signals from “S” band, frequency reducerconverter is used. In order to receive weak and noisy signals from the satellite, low-noise amplifiers which are related to radio are used. In general format, the use of radio is limited to hand manipulation, and here in order to increase the quality and possibility of performing work scenarios, by the use of user software, an interface is applied between the radio and the computer in order for the radio to be controlled by the computer. For directing antennas and adjusting their azimuth and elevation angles, according to satellite’s location, a rotor and a controller are used for antennas at any time.
And finally,user program is used to receive telemetric information, control antenna, and show earth navigation of the satellite.

[/fusion_tab][fusion_tab title=”APPLICATION AND CAPABILITIES” icon=”fa-book fas”]

[fusion_checklist icon=”” iconcolor=”” circle=”” circlecolor=”” size=”” divider=”” divider_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””][fusion_li_item icon=””]

Navigating student satellites

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Identifying the time at which the satellite can be seen from the station and its passing time

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Receiving satellite bus bacon signals

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Searching and automatic signaling of antennas to the satellite which is passing over the station

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Training efficient and professional staff in order to work at control earth stations and guide local satellites

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[/fusion_tab][fusion_tab title=”Mechanical and Electrical properties” icon=”fa-shield-alt fas” /][/fusion_tabs][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Separator Big Triangle” hundred_percent=”yes” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”” video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”” video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”” padding_right=”” padding_bottom=”” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”none” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”” border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”20px” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_section_separator divider_type=”bigtriangle” divider_position=”center” divider_candy=”bottom” icon=”” icon_color=”” bordersize=”0px” bordercolor=”” backgroundcolor=”#ffffff” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” /][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Tutors” hundred_percent=”no” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”no” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”left top” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”0px” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”60px” padding_right=”” padding_bottom=”70px” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”3%” margin_bottom=”40px” animation_type=”” animation_direction=”left” animation_speed=”0.1″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” class=”” id=””]

Achievement Creators

[/fusion_text][fusion_separator style_type=”single solid” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” sep_color=”#f09a3e” top_margin=”” bottom_margin=”45px” border_size=”” icon=”” icon_circle=”” icon_circle_color=”” width=”170px” alignment=”center” /][/fusion_builder_column][fusion_builder_column type=”1_3″ layout=”1_3″ last=”no” spacing=”yes” center_content=”no” hide_on_mobile=”no” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” hover_type=”none” link=”” border_position=”all” border_size=”0px” border_color=”” border_style=”solid” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”” margin_bottom=”” animation_type=”0″ animation_direction=”down” animation_speed=”0.1″ animation_offset=”” class=”” id=”” min_height=””][fusion_person name=”Name” title=”PHD Student” picture=”https://www.spacerl.com/wp-content/uploads/2018/06/Avatar-300×300.png” pic_link=”” linktarget=”_self” pic_style=”none” hover_type=”none” background_color=”” content_alignment=”” pic_style_color=”” pic_bordersize=”” pic_bordercolor=”” pic_borderradius=”” icon_position=”” social_icon_boxed=”” social_icon_boxed_radius=”” social_icon_color_type=”” social_icon_colors=”” social_icon_boxed_colors=”” social_icon_tooltip=”” blogger=”” deviantart=”” digg=”” dribbble=”” dropbox=”” facebook=”#” flickr=”” forrst=”” googleplus=”” instagram=”#” linkedin=”” myspace=”” paypal=”” pinterest=”” reddit=”” rss=”” skype=”” soundcloud=”” spotify=”” tumblr=”” twitter=”#” vimeo=”” vk=”” whatsapp=”” xing=”” yahoo=”” yelp=”” youtube=”” email=”” show_custom=”no” custom_0=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]Profile Description[/fusion_person][/fusion_builder_column][fusion_builder_column type=”1_3″ layout=”1_3″ last=”no” spacing=”yes” center_content=”no” hide_on_mobile=”no” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” hover_type=”none” link=”” border_position=”all” border_size=”0px” border_color=”” border_style=”solid” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”” margin_bottom=”” animation_type=”0″ animation_direction=”down” animation_speed=”0.1″ animation_offset=”” class=”” id=”” min_height=””][fusion_person name=”Name” title=”PHD Student” picture=”https://www.spacerl.com/wp-content/uploads/2018/06/Avatar-300×300.png” pic_link=”” linktarget=”_self” pic_style=”none” hover_type=”none” background_color=”” content_alignment=”” pic_style_color=”” pic_bordersize=”” pic_bordercolor=”” pic_borderradius=”” icon_position=”” social_icon_boxed=”” social_icon_boxed_radius=”” social_icon_color_type=”” social_icon_colors=”” social_icon_boxed_colors=”” social_icon_tooltip=”” blogger=”” deviantart=”” digg=”” dribbble=”” dropbox=”” facebook=”#” flickr=”” forrst=”” googleplus=”” instagram=”#” linkedin=”” myspace=”” paypal=”” pinterest=”” reddit=”” rss=”” skype=”” soundcloud=”” spotify=”” tumblr=”” twitter=”#” vimeo=”” vk=”” whatsapp=”” xing=”” yahoo=”” yelp=”” youtube=”” email=”” show_custom=”no” custom_0=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]Profile Description[/fusion_person][/fusion_builder_column][fusion_builder_column type=”1_3″ layout=”1_3″ last=”no” spacing=”yes” center_content=”no” hide_on_mobile=”no” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” hover_type=”none” link=”” border_position=”all” border_size=”0px” border_color=”” border_style=”solid” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”” margin_bottom=”” animation_type=”0″ animation_direction=”down” animation_speed=”0.1″ animation_offset=”” class=”” id=”” min_height=””][fusion_person name=”Name” title=”PHD Student” picture=”https://www.spacerl.com/wp-content/uploads/2018/06/Avatar-300×300.png” pic_link=”” linktarget=”_self” pic_style=”none” hover_type=”none” background_color=”” content_alignment=”” pic_style_color=”” pic_bordersize=”” pic_bordercolor=”” pic_borderradius=”” icon_position=”” social_icon_boxed=”” social_icon_boxed_radius=”” social_icon_color_type=”” social_icon_colors=”” social_icon_boxed_colors=”” social_icon_tooltip=”” blogger=”” deviantart=”” digg=”” dribbble=”” dropbox=”” facebook=”#” flickr=”” forrst=”” googleplus=”” instagram=”#” linkedin=”” myspace=”” paypal=”” pinterest=”” reddit=”” rss=”” skype=”” soundcloud=”” spotify=”” tumblr=”” twitter=”#” vimeo=”” vk=”” whatsapp=”” xing=”” yahoo=”” yelp=”” youtube=”” email=”” show_custom=”no” custom_0=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]Profile Description[/fusion_person][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

Magnetic Field Simulator

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In order to test the identification of magnetic two poles of the production magnet torquers and also their interaction with magnetic field there was a need for satellite orbit, so that by the use of two dimensional Helmholtz rings, the magnetic field of the orbit could be simulated in a coordinate system attached to the orbit’s page in two dimensions For this aim, the simulator system of satellite orbit magnetic environment called “KOSAR 100” was built in Space Research Laboratory and it could simulate magnetic field in a wider confine more carefully.

This simulator is used to simulate a magnetic field; by which the usage of the magnetic field in the control subsystem of the satellite situation, as well as the nature of Earth’s magnetic field is explained for the students .

In this experiment, a maquette of a space satellite is located within the simulator’s magnetic field space to be influenced by the simulated field so that the students can observe how the satellite operate in the real conditions of space, then the necessary concepts are explained by the teachers and transferred to the students.

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“KOSAR 100” is made up of several different parts including power source ,Helmholtz rings, suspension stand, VPM (Vision Processing Measurement) image measurement, and user software. Suspension stand is designed and applied in order to make appropriate suspension in the air and also to make necessary freedom degrees.is applied in order to provide necessary power for different parts of “KOSAR 100″.The job of Helmholtz rings is making the two dimensional magnetic field in a way that at a specific confine of the space the magnetic field of the earth is spoiled and the new field can be made according to needed dimensions. And finally the image measurement unit measures the rotation made by the element which is being tested and then gives it to the user software as input.

[/fusion_tab][fusion_tab title=”APPLICATION AND CAPABILITIES” icon=”fa-book fas”]

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Doing acceptance tests and verifying qualifications of satellite elements which interact with magnetic field.

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Doing acceptance tests and verifying qualifications of satellite elements which interact with magnetic field.

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Guiding charged heavy particles and stubbing them to solar arrays

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Identifying the magnetism level of satellite’s body

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Identifying and affirming magnetic dipole moment of the magnet torquer directly

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[/fusion_tab][fusion_tab title=”Mechanical and Electrical properties” icon=”fa-shield-alt fas” /][/fusion_tabs][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Separator Big Triangle” hundred_percent=”yes” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”” video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”” video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”” padding_right=”” padding_bottom=”” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”none” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”” border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”20px” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_section_separator divider_type=”bigtriangle” divider_position=”center” divider_candy=”bottom” icon=”” icon_color=”” bordersize=”0px” bordercolor=”” backgroundcolor=”#ffffff” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” /][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Tutors” hundred_percent=”no” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”no” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”left top” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”0px” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”60px” padding_right=”” padding_bottom=”70px” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”3%” margin_bottom=”40px” animation_type=”” animation_direction=”left” animation_speed=”0.1″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” class=”” id=””]

Achievement Creators

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Reaction Wheels

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For making changes in the attitude (or position) of the satellites, considering the level of change and its kind, different actuators can be used.
This actuators, by the use of Action and Reaction Principle (Newton’s second principle), can import force to the satellite without relying on any surface.
One of the most important of such actuators is reaction wheels in which the reaction force made because of rotation’s start, rotation’s speed change, or rotation’s stop can be used as propulsion of attitude’s change.
Due to the country’s need and in order to achieve to the designing and manufacturing technology of such actuators, Space Research Laboratory has begun designing and making samples of such actuators in order to be used in micro level satellites.
Manufactured models are RW1800, RW1900, RW2000 and RW2100 whose mechanical properties are mentioned in the following table.

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Reaction wheels are made up of different parts including: disc, rotor, stator, installation base, driver and encoder.
The disc is used in order to provide rotator inertia. Rotor and stator are used in order to connect the disc to the driver. Driver’s task is rotating rotor with a definite speed. The encoder measures the rate of rotation speed changes and it also gives feedback to the driver.

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It can be used as attitude control actuator on satellites

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Different control algorithms can be tested by using it

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The possibility of installing and testing on “HAGH 100” & “HOJAT 100″ systems

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The possibility of controlling and programming of the changes in rotation rate

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Smaller dimensions and lower weight in recent samples

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[/fusion_tab][fusion_tab title=”Mechanical and Electrical properties” icon=”fa-shield-alt fas”]

Reaction Wheel (RW 2100)
Performance
Angular Momentum 3.8 N.m.s
Nominal Rotation Speed 4000 rpm
Max. Rotation Speed 6000 rpm
Nominal Torque 0.40 N.m
Mechanical
Disk Mass 2 kg
Dimension Ф160*47.6mm
Moment of Inertia 0.0009kgm²
Mechanical Power 85 W
Electrical
Voltage 18-24V
Type of plug Micro-D 15 Female
Data Interfaces RS 485 with ASCII or Binary Protocol
Power Consumption
Stand By 1.1W
Max Torque 100W
General
Operation temperature range -40 to +85
Storage Temperature -50 to +90
Reaction Wheel (RW 2000)
Angular Momentum 0.35 N.m.s
Nominal Rotation Speed 6000 rpm
Max. Rotation Speed 7500 rpm
Nominal Torque 0.012 N.m
Mechanical
Mass 0.8 kg
Dimension Ф100*62m
Moment of Inertia 4*10^(-4)kgm²
Mechanical Power 18 W
Electrical
Voltage 18-24V
Type of plug Micro-D 15 Female
Data Interfaces RS 485 with ASCII or Binary Protocol
Power Consumption
Stand By 1.1W
Max Torque 22W
General
Operation temperature range -20 to +50
Storage Temperature -30 to +60
Reaction Wheel (RW 2200)
Angular Momentum 5.5*10^(-4) N.m.s
Nominal Rotation Speed 8000 rpm
Max. Rotation Speed 16000 rpm
Nominal Torque 22*10-10 N.m
Mechanical
Mass 0.4 kg
Dimension Ф50*35m
Moment of Inertia 700gmm²
Mechanical Power 0.65 W
Electrical
Voltage 12V
Type of plug Micro-D 15 Female
Data Interfaces RS 485 with ASCII or Binary Protocol
Power Consumption
Stand By 0.5W
Max Torque 0.75W
General
Operation temperature range -20 to +50
Storage Temperature -30 to +60

[/fusion_tab][/fusion_tabs][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Separator Big Triangle” hundred_percent=”yes” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”” video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”” video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”” padding_right=”” padding_bottom=”” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”none” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”” border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”20px” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_section_separator divider_type=”bigtriangle” divider_position=”center” divider_candy=”bottom” icon=”” icon_color=”” bordersize=”0px” bordercolor=”” backgroundcolor=”#ffffff” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” /][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container admin_label=”Tutors” hundred_percent=”no” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”no” class=”” id=”” background_color=”#faf9f8″ background_image=”” background_position=”left top” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”0px” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”60px” padding_right=”” padding_bottom=”70px” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”yes” center_content=”no” hover_type=”none” link=”” min_height=”” hide_on_mobile=”no” class=”” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”3%” margin_bottom=”40px” animation_type=”” animation_direction=”left” animation_speed=”0.1″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” class=”” id=””]

Achievement Creators

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Virtual simulator of space systems

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Virtual simulator is a device which helps to analyzeand assess space systems functions and their control algorithms without any difficulty or hardware problems. Considering this issue and also country�s need to have access to such products, virtual simulator of space systems is designed and operated at space research Laboratory. This simulator, by the use of basic attitude models and also satellite transmission models has the capability to simulate transmission link of geosynchronous satellite and also the dynamic of satellite’s attitude in a virtual way. All the stages of designing and producing of this simulator is done completely in space research Laboratory at Khaje-Nasir-e-Din-Toosi University, and its first version, entitled “KhosroTous 100″ , is represented by experts and professionals of space system.

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Virtual simulator of space systems is made up of five major parts which are listed as: source package designing program, server program, program for earth station users, base models, graphic interface for resource package designing program in order to manage, define data and identify data report structure. Such data is used in order to packsending packages at OBDH unit and also to interpret received packages from the earth, server program, common data storage provider, and common services set. The software of earth station users is run at user terminals in earth stations and provides the opportunity of sending, receiving, saving and showing telemetric information, satellite’s attitude and also simulation trend control and related parameters adjustment. Models provide simulated information of different working and environmental conditions. Graphic interface provides three dimensional graphic representations of the satellite (space craft) while performing functional maneuvers and providing relations with satellite.

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Real environment simulation of satellite”s orbital movement at geosynchronous orbit and sun synchronous orbit and lower heights

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Real environment simulation of satellite”s orbital movement at geosynchronous orbit and sun synchronous orbit and lower heights

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Immediate observation of attitude

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identification elements function and controlling attitude such as that of solar sensors,Horizon Sensor

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actuators of reaction wheels, momentum wheels and thrusters

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Adjusting related parameters of simulation, simulation trend control, implementation and stopping of the models

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Taking photographs of Terrain, and saving/sending them to earth stations of LEO orbital satellites

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Sending and receiving different TT&C signals along with simulation of environmental noise effects on signal. Capability of evaluating and granting users who are being educated, especially by doing trainer’s missions

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Achievement Creators

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Satellite’s ADCS HIL Simulation Package

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In order to simulate the functional environment of a space system and to assess the function of control/stability subsystem, SpaceRL has begun designing and making the Hardware In the Loop (HIL) for attitude simulator. This system is a stand with three degrees of freedom which can simulate the attitude of a space system and its elements like the way it actually happens in orbit. This simulator can be used to test the attitude actuators such as reaction wheels and thrusters. Appropriate properties of this simulator have made possible the sending of control commands and the receiving of its reaction in wireless mode. This simulator can be used for testing hardware in the loop. All the stages of designing and making such subsystems are completed by the technical team of SpaceRL at K. N. Toosi University. Up to now, two samples called “Hagh100” and “Hojat100” are made and implemented at SpaceRL.

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The different models of this simulator had different component but the latest one has reaction wheels, thrusters in three axis also has sensors like sun sensor, IMU and etc.

The ACS Test Facility includes:

  • air bearing table with a platform allowing free 360° rotation around the vertical axis and between 20° and 30° around the horizontal axes
  • high precision in-orbit earth magnetic field simulation
  • adjustable and movable sun simulation
  • WLAN command line
  • safety mechanisms for save operation and satellite mounting
  • power supply and distribution for the test object

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Examining Attitude determination and control algorithms and test their function in a near real environment is the main capability of this project

[/fusion_tab][fusion_tab title=”Mechanical and Electrical properties” icon=”fa-shield-alt fas”]

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Component Specifications
Reaction wheel Angular Momentum at Nominal Speed 68 Nms
Operational Speed Range 60000 rpm

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Achievement Creators

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Software for systematic analysis of space systems

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In space systems design process, the use of system analysis is inevitable. System engineering makes it possible for the designers to carefully consider all dimensions of the problem. In system engineering process, the relationship between workgroups, subjects and different subsystems is appropriately made possible through software. Due to the design and manufacturing of different space systems in the country, the need to perform systematic analysis is felt more than before. Thus space research Laboratory has begun to design and produce design and system analysis software in the form of different subjects. Such software are: the software for conceptual designing of space carriers (LVCD), the software for loading and designing space carrier structure, the software for systematic designing of small satellites, the software for assessing and leveling distance evaluation satellites (SSET),the software for analyzing orbits of LEO & GEO satellites, and the software for analyzing satellite launching site. All the stages of designing and producing of such satellites are done at space research Laboratory and the structure of such satellites can be linked to other codes and software.

[/fusion_tab][fusion_tab title=”INTRODUCTION OF COMPONENTS” icon=”fa-file-alt far”]

system analysis and designing includes statistical data base, analyzer/designer body, and stimulation.

[/fusion_tab][fusion_tab title=”APPLICATION AND CAPABILITIES” icon=”fa-book fas”][fusion_checklist icon=”fa-check-circle fas” iconcolor=”” circle=”” circlecolor=”” size=”” divider=”” divider_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””][fusion_li_item icon=””]

The possibility of easy linking to other codes and base software.

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Ease of use for users

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Proper for designers and system analyzers

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Capability of being updated and developed

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Preparing conditions for conducting research and also educating students and experts.

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Flight simulation

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Achievement Creators

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