ultrasonic transducer to control the level of stone and sand hopper 1m range npn output 12/24vdc power supply can customize

since the transmitted ultrasonic pulse has a certain width, the reflected wave and the transmitted wave in a small region closer to the transducer overlap, and cannot be recognized, and the distance value cannot be measured. this area is called the measurement dead zone. the size of the blind spot is related to the model of the ultrasonic level gauge.