The sensor is connected to a dedicated electronic belt scale drum. The use of soft links to eliminate the speed sensor is usually friction between the friction wheel and belt due to slip caused by the error; full cast aluminum housing, has good shielding; sensor closed performance, suitable for outdoor installation; speed sensor movement without carbon brush Pulse generator, without adjustment, calibration, no maintenance; the latest electronic belt scale speed sensor soft connection technology, more effectively protect the speed accuracy, thus ensuring the accuracy of electronic belt scale, and greatly improve the life of the equipment. Dosing feeder, batching scale, coal scale, pressure weighing coal feeder, screw feeder, tape feeder and other supporting speed sensor can provide.