绝对式光栅尺振动干扰的测试

Testing Vibration Disturbance of Absolute Linear Optical Encoder

绝对式光栅尺(绝对式线位移光电编码器)在数控机床上应用广泛。在数控机床加工过程中,在不同方向上存在不同频率,不同振幅的振动干扰,这些干扰会给绝对式光栅尺的测量结果造成一定的干扰。为了更好的了解振动干扰对绝对式光栅尺的影响,以海德汉LC183绝对式光栅尺与国产JC09绝对式光栅尺作为研究对,通过比对两者在相同振动干扰条件下测量结果的波动,测试JC09绝对式光栅尺与LC183绝对式光栅尺抗振能力。结果显示JC09绝对式光栅尺与LC183绝对式光栅尺测量结果最大偏移幅度大小接近。

Absolute linear optical encoder is widely used in CNC machines. Vibration disturbance with different frequence, amplitude and di-rection exists in CNC working, and the disturbance disturbs the measurement result of the absolute linear optical. In order to analyze the in-fluence on the measurement result generated by the vibration disturbance, this paper analyze the measurement result disturbance by trading the heideihain LC183 and domestic JC09 absolute linear optical encoder as targets. Testing results show that disturbance of the measurement results of the two encoder is almost the same amplitude.