Ultrasonic level sensors

In the top of the silo facing material surface with ultrasonic generator and receiver. Generators emit ultrasonic shot through the air to the material surface layer after being reflected, in part reflected by the Receiver, ultrasonic transmitter to the receiver by the elapsed time can be calculated by multiplying the speed of sound material level height. As the air temperature will affect the level of the acoustic propagation velocity, so the need to measure the air temperature to correct the speed of sound.Ultrasonic Crank Shaft Position Sensor suitable for measuring particle size larger block material material level