德国8077传感器

流量传感器是通过在被测量转轴上设定反射记号，而后获得光线反射信号来完成物体转速测量的。反射式光电转速传感器的光源会对被测转轴发出光线，光线透过透镜和半透膜入射到被测转轴上，而当被测转轴转动时，反射记号对光线的反射率就会发生变化。反射式光电转速传感器内装有光敏元件，当转轴转动反射率增大时，反射光线会通过透镜投射到光敏元件上，反射式光电转速传感器即可发出一个脉冲信号。BURKERT容积式流量传感器等组为一体，因此除了其换向功能之外，还具有使系统限压、卸荷、执行元件的锁位等功能，特别是卸荷功能尤为重要．在农业机械中，特别是联合收割机中，普遍使用多路组合换向阀，各执行元件间断工作，液压系统经常处于卸荷状态。

德国8077传感器

BURKERT volumetric flow sensor and other group as a whole, so in addition to its reversing function, but also has the system pressure limiting, unloading, lock of actuators, and other functions, especially the unloading function is particularly important. In agricultural machinery, especially in combine harvesters, multiplexing valve is widely used, and each execution component works intermittently. The hydraulic system is often in unloaded condition

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