Test star tracker static, dynamic attitude efficiency, static accuracy, dynamic performance, polarity, and capture time inall-sky zone. The device is fixedly connected to the turntable, different angular speeds of the rotation can be set to realize the measurement of different sky areas.
The dynamic accuracy test is to verify the dynamic performance of the device by testing the dynamic accuracy of the device under different angular velocitieson a high-precision turntable. The measurement of dynamic accuracy is the difference between the actual rotation angle of the turntable and the rotation angle of the equipment. A parallel light pipe is used to simulate a single starpoint, and the turntable is used for external synchronous transmission. The falling edge of the FEN signal of the device triggers the turntable. Theturntable outputs real-time position through RS422. The device image is saved in real-time by the image transmission software and the angle value is calculated. Internal exposure and line input compensation can verify the dynamic accuracy of the device.
Test equipment stray light exclusion angle.Fix the device on the turntable, set different light intensity of the solar simulator according to the test requirements, adjust the angle of the device and the solar simulator, make the optical axis direction of the device lens coincides with the light path direction, record it as the zero degree position, adjust the rotation Record the working status of the equipment at different angles to verify the stray light suppression performance.
Measure the transformation matrix between the device sensor coordinate system and the satellite coordinate system, (the prism can be the reference prism that comes with the device sensor or the reference prism for the entire satellite). Utilizing the self-collimation function of the theodolite, the system alignment measurement is performed tocalibrate the device sensor prism coordinate system and the satellite coordinate system. It is used to measure the installation matrix between prisms, and equipment.
TY-Space Technology (Beijing) Ltd. is professional focusing on advanced attitude optical sensors, especially Star Trackers for space industry.