BES-M12-MI-PSC40B-BP03,BALLUFF巴魯夫限位開關樣本
用能感知溫度變化的元件做成的開關叫熱釋電式接近開關
這種開關是將熱釋電器件安裝在開關的檢測面上，當有與環境溫度
德巴魯夫BALLUFF光電開關當觀察者或系統對波源的距離發生
Photovoltaic device receives the reflected light after
the signal output, which can "sense" an object closer.
When an object close to the same, the output of Pyroelectr
made. Doppler effect can be made use of ultrasonic proximity switches
改變時，接近到的波的頻率會發生偏移，這種現象稱為多普勒效應

BES-M12-MI-PSC40B-BP03,BALLUFF巴魯夫限位開關樣本

用光電效應做成的開關叫光電開關。將發光器件與光電器件按
一定方向裝在同一個檢測頭內。當有反光面(被檢測物體)接近時
光電器件接收到反射光后便在信號輸出，由此便可“感知”有物體接近。
ic will change, thus it can detect an object approaching.
Sonar and radar using the principle of this effect is
同的物體接近時，熱釋電器件的輸出便變化，由此便可檢測出有物體接近。
Sonar and radar using the principle of this effect is made. Doppler
effect can be made use of ultrasonic proximity switches
 

BES-M12-MI-PSC40B-BP03,BALLUFF巴魯夫限位開關樣本