磁旋轉(zhuǎn)編碼器主要由磁阻傳感器、充磁磁鼓、信號處理電路和機(jī)械結(jié)構(gòu)部分組成。它采用磁阻變化原理檢測微弱磁場信號的變化。磁鼓刻錄成等間距的小磁極，磁極被磁化后，磁鼓在旋轉(zhuǎn)時能在周圍空間分布周期性變化的磁場。在一定的間距上，這個磁場的Ｙ方向分量在每個磁極的正上方位置，磁旋轉(zhuǎn)編碼器的值為零；在相鄰磁極的正中位置，它的值為zui大。

磁鼓旋轉(zhuǎn)時磁阻元件由于具有磁阻效應(yīng)，磁旋轉(zhuǎn)編碼器的阻值會隨著磁場的改變而改變，在外加電勢的作用下，變化的電阻值導(dǎo)致電阻上的電壓變化，橋式電路的輸出端的電壓也就隨之發(fā)生變化。因此，橋式電路的輸出信號和磁鼓的旋轉(zhuǎn)是緊密相聯(lián)的。磁鼓每旋轉(zhuǎn)一個磁化長度，磁場變化半周，信號輸出則變化一個周期，磁鼓上磁極對的數(shù)量和輸出信號的周期數(shù)在旋轉(zhuǎn)一周時是相等的。所以通過測定輸出信號的周期數(shù)或周期時間就可知道磁鼓的位置和旋轉(zhuǎn)速度了?？刹榭创判跃幋a器的更多介紹。

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AR62/1212EQ.96SBB-Y0
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AR63/1212EL.72SGF
AR62/1212EQ.96SGB-F0
AR62/1212EL.72SBB

德國Hengstler亨士樂編碼器,Hengstler編碼器, 溫度控制器, 計時器,電子式計數(shù)器、機(jī)械式計數(shù)器、安全繼電器