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Optical Energy Technologies, Inc.

Solar, Electro-Optical Instruments and Services

Orbit Attitude Control System using Sun Sensors, Earth Sensor, MEMS, IMU, ACS,

OpticalEnergy.com

Specialists in Solar, Optical, Spacecraft Laser Energy Technologies


ATTITUDE CONTROL SYSTEM USING SUN SENSORS, EARTH SENSOR, MEMS, IMU, ACS, ORBIT

3-AXIS ATTITUDE READOUT

System Components:

IMU, ACS, Orbit Attitude Control System using Sun Sensors, Earth Sensor, MEMS,

MEMS, IMU, ACS, Orbit Attitude Control System using Sun Sensors, Earth Sensor,

Sensor, MEMS, IMU, ACS, Orbit Attitude Control System using Sun Sensors, Earth

 OPTICAL ENERGY TECH.
ONE OR TWO SUN SENSORS

 OPTICAL ENERGY TECH.
ONE IR EARTH SENSOR

 MICRO AEROSPACE SOLUTIONS
ONE MEMS IMU



 Predicted System Performance:

 ATTITUDE READ-OUT ERROR ~ DEGREES

Earth Sensor, MEMS, IMU, ACS, Orbit Attitude Control System using Sun Sensors,

 ORBIT REVOLUTIONS



 OPERATION FUNCTION:

 • Sun Sensors Correct IMU Drift Whenever Sun is Seen
• Earth Sensors Correct Yaw Drift
• Kalman Filter Maintains Attitude During Dark Orbit Period


 ADDED COMPONENTS FOR ATTITUDE CONTROL

 ALAMEDA APPLIED SCIENCES' VACUUM ARC THRUSTERS
Sensors, Earth Sensor, MEMS, IMU, ACS, Orbit Attitude Control System using Sun

 THRUSTER PARAMETERS:


• Vacuum Arc Thrusters (VAT) Provide a Very High Specific Impulse ( ISP = 1,500 Sec.)

• A Pair of These Thrusters Can Provide the Following Estimated Attitude Control Parameters for Spacecraft of Various Masses:

Spacecraft Mass

VAT System Power

Time for 90° Maneuver

Estimated System Mass

10 Kgrams.

10 watts

2.34 hours

2 Kgrams.

100 Kgrams.

100 watts

3.30 hours

4 Kgrams.

500 Kgrams.

200 watts

5.22 hours

8 Kgrams.



 LINKS TO COMPONENT MANUFACTURERS:

Sun Sensors, Earth Sensor, MEMS, IMU, ACS, Orbit Attitude Control System using
 Micro Aerospace Solutions, Inc. of Melbourne Florida
http://www.Micro-A.net



using Sun Sensors, Earth Sensor, MEMS, IMU, ACS, Orbit Attitude Control System
 Alameda Applied Sciences Corp of San Leandro, CA
http://www.AASC.net



>>> Click here to find out about INFRARED (IR) BLACKBODY SOURCES  >>>

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472 Westover Road • Stamford, CT  06902-1930

203-357-0626

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