一种高精度大量程角信号测量系统
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
- Filing Date
- 2024-12-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for space gravitational wave detection have limited range for high-precision angular signal measurement at the nanoradian level, and large-angle rotations can easily lead to the loss of interference signals, making it difficult to achieve high-precision large-angle measurements.
A high-precision, large-range angle signal measurement system is adopted, including a light source preparation module, a spatial optical path module, and a signal acquisition and calculation module. By designing an imaging system, the center of the laser spot of the laser reflection point on the target is imaged onto the center of the detector, ensuring that the laser spot does not wander during the target rotation. Combined with the differential displacement measurement method, the influence of translational signal is eliminated and it can adapt to large-angle rotation.
It achieves high-precision angle measurement over a wide angle range, reduces the sensitivity to phase measurement noise, maintains the stability of the interference signal and the robustness of the measurement, and meets the needs of space gravitational wave detection and torsion balance signal readout.
Smart Images
Figure CN119714190B_ABST