Ultrasonic Level Switch Working Principle
An ultrasonic switch is a device that uses inaudible high-frequency sound (ultrasound) to detect the presence or absence of a liquid at a designated point. The device consists of an...
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Ultrasonic Level Switch Principle
Yet another style of electronic level switch uses ultrasonic sound waves to detect the presence of process material (either solid or liquid) at one point: Sound. Sound waves pass back...