TY-Space Technology (Beijing) Ltd.
fTY-Space Technology (Beijing) Ltd. specializes in the development and production of Star Trackers. Core technology comes from the research and development of Tsinghua University in the past two decades. There are 133 star trackers are work well in orbit. Some star- trackers are working for national major tasks, such as China's lunar exploration projects and Gaofen projects.
TY-Space has a production capacity of 500 sets per year, adapting to a variety of spacecraft application requirements, and providing professional, advanced and economical products to customers in different fields.
Dynamic Star Simulator is a simpleinstrument test functioning and performance of star tracker.
The dynamic starsimulator can simulate all-sky star map, can be used for satellite HIL test,complete star tracker function and performance test, and perform star trackerpolarity and data stability testing. It is an important instrument in startracker development and satellite application testing. The user can inputquaternion to output the star map, meet the satellite HIL test.
Now, dynamic star simulator been test forhigh dynamic star tracker, with a 60HZ refresh rate, the star tracker canrecognize star at 10 °slew rate.
Test star tracker static, dynamic attitudeefficiency, static accuracy, dynamic performance, polarity, and capture time inall-sky zone. The device is fixedly connected to the turntable, differentangular speeds of the rotation can be set to realize the measurement ofdifferent sky areas.
Thedynamic accuracy test is to verify the dynamic performance of the device bytesting the dynamic accuracy of the device under different angular velocitieson a high-precision turntable. The measurement of dynamic accuracy is thedifference between the actual rotation angle of the turntable and the rotationangle of the equipment. A parallel light pipe is used to simulate a single starpoint, and the turntable is used for external synchronous transmission. Thefalling edge of the FEN signal of the device triggers the turntable. Theturntable outputs real-time position through RS422. The device image is savedin real-time by the image transmission software and the angle value iscalculated. Internal exposure and line input compensation can verify thedynamic accuracy of the device.
Stray light test
Test equipment stray light exclusion angle.Fix the device on the turntable, set different light intensity of the solarsimulator according to the test requirements, adjust the angle of the deviceand the solar simulator, make the optical axis direction of the device lenscoincides with the light path direction, record it as the zero degree position,adjust the rotation Record the working status of the equipment at differentangles to verify the stray light suppression performance.
Installation matrix measurement
Measure the transformation matrix betweenthe device sensor coordinate system and the satellite coordinate system, (theprism can be the reference prism that comes with the device sensor or thereference prism for the entire satellite). Utilizing the self-collimationfunction of the theodolite, the system alignment measurement is performed tocalibrate the device sensor prism coordinate system and the satellitecoordinate system. It is used to measure the installation matrix betweenprisms, and equipment.