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力士樂壓力繼電器內部機電變換原理的不同，輸出的電量也各不相同。有的是將機械量的變化變換為電動勢、電荷的變化，有的是將機械振動量的變化變換為電阻、電感等電參量的變化。一般說來，這些電量并不能直接被后續的顯示、記錄、分析儀器所接受。因此針對不同機電變換原理的傳感器，必須附以專配的測量線路。測量線路的作用是將傳感器的輸出電量zui后變為后續顯示、分析儀器所能接受的一般電壓信號。因此，振動傳感器按其功能可有以下幾種分類方法： REXROTH壓力傳感器基于電磁感應原理，即當運動的導體在固定的磁場里切割磁力線時，導體兩端就感生出電動勢，因此利用這一原理而生產的傳感器稱為電動式傳感器。
力士樂壓力繼電器從機械接收原理來說，是一個位移傳感器，由于在機電變換原理中應用的是電磁感應電律，其產生的電動勢同被測振動速度成正比，所以它實際上是一個速度傳感器。REXROTH壓力傳感器是一種相對式非接觸式傳感器，它是通過傳感器端部與被測物體之間的距離變化來測量物體的振動位移或幅值的。電渦流傳感器具有頻率范圍寬（0～10 kHZ），線性工作范圍大、靈敏度高以及非接觸式測量等優點，主要應用于靜位移的測量、振動位移的測量、旋轉機械中監測轉軸的振動測量。依據力士樂壓力繼電器的相對式機械接收原理，電感式傳感器能把被測的機械振動參數的變化轉換成為電參量信號的變化。因此，電感傳感器有二種形式，一是可變間隙，二是可變導磁面積。
力士樂壓力繼電器一般分為兩種類型。即可變間隙式和可變公共面積式。可變間隙式可以測量直線振動的位移。可變面積式可以測量扭轉振動的角位移。REXROTH壓力傳感器由固定部分、可動部分以及支承彈簧部分所組成。為了使傳感器工作在位移傳感器狀態，其可動部分的質量應該足夠的大，而支承彈簧的剛度應該足夠的小，也就是讓傳感器具有足夠低的固有頻率。 根據電磁感應定律，感應電動勢為：u=Blx&r 式中B為磁通密度，l為線圈在磁場內的有效長度， r x&為線圈在磁場中的相對速度。 從傳感器的結構上來說，慣性式電動傳感器是一個位移傳感器。然而由于其輸出的電信號是由電磁感應產生，根據電磁感應電律，當線圈在磁場中作相對運動時，所感生的電動勢與線圈切割磁力線的速度成正比。因此就傳感器的輸出信號來說，感應電動勢是同被測振動速度成正比的，所以它實際上是一個速度傳感器。

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上海維特銳實業發展有限公司現貨供應德國力士樂壓力繼電器系列產品，如需詳細了解請點擊：德國力士樂壓力繼電器