The working principle of HG-SJ speed detector:

When the contact wheel drives the pulse disk in the machine as the belt conveyor runs, the sensor detects the pulse disk

The signal is input into the control circuit, and after amplification, shaping, and counting, it is compared with the preset value to determine the speed of the tape

, that is, normal synchronization, slipping, or overspeeding, etc. At the same time, the execution circuit outputs the corresponding switching signal. More detailed information

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