Non Intrusive Liquid Level Detection Using Optical Technique

Nik Intan Hazura, Nik Abdul Halim (2008) Non Intrusive Liquid Level Detection Using Optical Technique. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This report consists of the knowledge acquired and it encompasses the system and technologies that are applied in order to complete the final year project. The explanations are based on literatures, articles and experiences from the actual work done. There are many types of liquid level detection already in existence in the market and it depends on the application by the user. Non-Intrusive liquid level detection is the system where the detection or measuring of the level of the liquid is done without any physical contact with the liquid. The method is based on optical technology whereby object is in direct contact with the liquid. An optical technique was chosen because of its high speed performance as compared to other methods. The concept that will be use in the system is based on the intensity measurement of a laser in term of voltage. The depth of liquid will be measured based on intensity of laser light. The voltage decreases while the depth of liquid increases.

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