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Ultrasonic Level Transmitter

2016-04-09 13:36  
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Ultrasonic Level Transmitter – Beginner Guide

Ultrasonic level transmitteris a transmitter that is used to convey data information related to the measurement of liquid level and / or solids in an industry to the recipient. Level measurement process uses ultrasonic frequencies, frequencies that above the frequency of 20 KHz, which is usually located in the range of 40-200 KHz.

The use of theultrasonic level transmitterapart in the industry for the measurement of hot or boiling liquid level and the nature of corrosion is the use for household purposes, for example, for measuring the water level in the tank. So it does not require you to crawl over the tank to check the water level in the tank.

Flowline EchoSpan Ultrasonic Level Transmitter

Flowline EchoSpan Ultrasonic Level Transmitter

Principle of Ultrasonic Level Transmitter

Basically anultrasonic level transmitterhas a sensor that has a transducer (ultrasonic transmitter and receiver in one package). Transducer is radiating pulses and sends a signal to / from the object to be measured using ultrasonic sound waves as radar that uses radio waves. When the ultrasonic pulse signal is targeted towards the object, which is reflected from objects and echo back to the sender. Travel time calculated by the ultrasonic pulse, and distance of objects found.

Anultrasonic level transmittermounted on the top of the tank remains filled with fluid. Ultrasonic pulse signal sent from the transmitter, and is reflected back to the sensor. Traveling time of ultrasonic pulses from the sensor to the target and re-calculated. The basic reference used is the speed of sound waves in the air so that the final measurement units can be specified in meter, feet, or inch

Advantages and Limitations of Ultrasonic Level Transmitter

The advantage of theultrasonic level transmitteris done without physical contact with the object and has no moving parts. The accuracy of the readings remained unaffected even after a chemical change that is safe at the influence of heat and chemical ingredients that are harmful. This is why theultrasonic level transmitteris the best level measurement equipment with acceptable quality. This equipment should not be used on objects that absorb sound, and is unsuitable for tanks with a high density moisture and too much smoke.

Some examples of the ultrasonic level sensor circuit, which does not include long-distance transmission (4-20mA transmitter). This description may be useful to understand a little about theultrasonic level transmitter.


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