Study on online detection system for dynamic performance of time grating
The detection of the performance index for the time grating angular displacement sensor is an indispensable part in its development and production.In the current time grating performance detection method, the time grating is not fed back to the control system and is in an offline working mode, which cannot reflect the dynamic performance index in the working state.In order to make up for the shortcomings of the existing detection methods, an online dynamic performance detection system is designed with time grating as the feedback element of direct drive motor, optical grating as the reference element, FPGA as the core of data acquisition card to collect dynamic data, and computer soft as calculating tool in this paper.The detection principle and hardware and software design of the system are described.Key dynamic performance indicators of time grating are successfully detected in the online working state.Experimental results indicate that the detection of the system reflects the real situation of the time grating in the online working state, which provides an effective detection means for the time grating to further improve the performance of the time grating.
time grating angular displacement sensordirect drive motoronlinedynamic performance
国家科技期刊平台
NSTL
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