Abstract：In order to study the measurement error of incremental grating encoder with different resolution, an error detection system based on rotary angular acceleration measurement is constructed. Firstly, the working principle of permanent magnet angular acceleration sensor is introduced, and also the angular acceleration measurement principle of incremental grating encoder. Then the angular acceleration sensor and incremental grating encoder are used to detect the rotational angular acceleration on the actual axis of the same sinusoidal vibration source, the error causes of grating encoder with different resolution are analyzed according to the experimental results. Finally, the references of choosing incremental grating encoder resolution are discussed.
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2021, Vol. 42 
