在應(yīng)用中容易受陽(yáng)光和照明光線等雜散光線的干擾。采用跟蹤動(dòng)態(tài)電平的平均值電路、適當(dāng)?shù)?a target='_blank' class='arckwlink_none'>光學(xué)及機(jī)械結(jié)構(gòu)、單片機(jī)解決這一問(wèn)題,使光電型紅外傳感器在非接觸轉(zhuǎn)速測(cè)量中的抗擾能力和測(cè)量準(zhǔn)確度都會(huì)有明顯提高。在調(diào)速系統(tǒng)和機(jī)械振動(dòng)位移系統(tǒng)中將有著廣泛的應(yīng)用。
關(guān)鍵詞: 光電型紅外傳感器; 轉(zhuǎn)速; 測(cè)量準(zhǔn)確度
Abstract : Photoelectric infrared sensors are objects to the interference of sunlight and illumination light . Adop2ting average circuit ,optical and mechanical structure and the singe chip processor ,the problem is resolved ,Theca2 pability of anti2interference and measurement accuracy are improved obviously in non2contact rotation speed mea2 surement. The methods will have comprehensive use in speed governor and mechanical vibration displacement system.
Key words : photoelectric infrared sensor ; rotation speed ; measurement accuracy