This sensor featuring plane-convex lens collimator for expanding beam and coupling, and a low frequency for light pulse modulation is introduced.
利用平-凸透镜准直器作扩束耦合光学系统，采用低频斩光器实现光调制。
One application of CPLD in the measuring system of using frequency modulation displacement sensor is introduced.
介绍了CPLD在调频式位移传感器测量系统中的一种应用。
A kind of signal processing circuil for the drop volume measurement through the capacitive drop sensor, based on frequency modulation, is introduced.
文中详细介绍利用调频原理通过电容液滴传感器对液滴体积进行测量的方法。
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