Ultrasonic Liquid Level Indicator Circuit Composed Of NE555

The picture shows the ultrasonic liquid level indicator circuit. This circuit is made up of ultrasonic transmitter circuit and receiver circuit.The ultrasonic transmitter circuit is made up of 555, R1, W1, C1 and ultrasonic transmitter head UCM40T. The ultrasonic receiver circuit is made up of the corresponding receiving head UCM40R, cascade amplifier BG1..

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