Home » Ultrasonic Level Switch Principle
eBooks Level Measurement Switches

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.

Ultrasonic Level Switch Principle

Sound waves pass back and forth within the gap of the probe, sent and received by piezoelectric transducers. The presence of any substance other than gas within that gap affects the received audio power, thus signaling to the electronic circuit within the bulkier portion of the device that process level has reached the detection point. The lack of moving parts makes this probe quite reliable, although it may become “fooled” by heavy fouling.

Index & Credits

Related Articles

Sanitary Pipe Fittings for the Instruments

S Bharadwaj Reddy

DP Type Level Measurement at transmitter installed above tapping point for open tank

S Bharadwaj Reddy

Process Switches and Alarms

S Bharadwaj Reddy

Displacer Level Sensor Working Animation

S Bharadwaj Reddy

Ultrasonic Level Measurement

S Bharadwaj Reddy

Electrical Signal and Control Wiring

S Bharadwaj Reddy

Leave a Comment

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More