Secondly, adopts AC modulation technology to process to grating interference strips signal, so this detection system has excellent capability in anti-environmental noise and DC offset.
其次,运用交流调制技术对衍射光栅信号进行处理,使测量系统具有更高的抗环境噪声和抗直流漂移的能力,从而适应更为恶劣的工作环境,也为软件细分创造了有利的条件。
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