modulation hum

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,運用交流調制技術對衍射光柵信號進行處理,使測量系統具有更高的抗環境噪聲和抗直流漂移的能力,從而適應更為惡劣的工作環境,也為軟件細分創造了有利的條件。