Non-Intrusive Liquid Level Detection System

Khairul Ariffin, Md Shariff (2011) Non-Intrusive Liquid Level Detection System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Liquid level measurement is a key aspect for many applications in the processing industry. Liquid handling offers many challenges for measurement and control. Especially when the liquid is corrosive, contaminated or poisonous. In industries, it is very common that the method used for measuring the liquid level is by using the direct contact method. This kind of method required the sensor to have direct contact with the liquid. By using this method the material of the sensor will affected the liquid and the sensor also have high probability to damage by the liquid itself. There are various techniques which can be used for this project. To achieved the objective of this project ultrasonic technology method is used. For this project, ultrasonic transducer is used to measure the liquid level of the tank. Using the ultrasonic sound and the time between the transmitted and received pulse, the distance traveled by the ultrasonic wave can be calculated. Then the distance value will be converted into level and displayed LCD display.

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