①首先要仔細研究測試信號還是速度、加速度、力的測量,確定測試方式和初步確定傳感器類型,例如,是位移測量,再確定傳感器類型。
②要分析測試環(huán)境和干擾因素,測試環(huán)境是否有磁場、電場、溫度的于擾,測試現(xiàn)場是否潮濕等。
③根據(jù)測試范圍確定某種傳感器,例如位移測量,要分析是小位移,還是大位移。若是小位移測量,有電感傳感器、電容傳感器、霍耳傳感器等供選擇;若是大位移測量,有感應(yīng)同步器、光柵傳感器等供選擇。
④確定測量方式。在測試工程中,是接觸測量,還是非接觸測量。例如,對機床主軸的回轉(zhuǎn)誤差測量,就必須采用非接觸測量。
⑤考慮傳感器的體積,被測位置是否能放下,傳感器的來源、價格等因素。
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