Ultrasonic rectifying sensor applies the principle of high frequency ultrasonic straight line propagation to detect the edge of the coil.Compared with the photoelectric sensor, it will not be affected by the material transparency, so there is no need to adjust when using, which is very convenient.Suitable for rectifying deviation of impermeable materials (such as plastic film, paper, etc.) (impermeable materials such as mesh cloth, non-woven cloth are not applicable)

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