A microcontroller-based system for liquid level detection using infrared sensing

Leong Yang Sing, Pin Jern Ker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This project aims at developing an intelligent liquid level detection system using the concept of infrared optical sensing. It involves a comprehensive study on the optical transmittance of water and Polyethylene Terephthalate (PET), and the integration of optical monitoring hardware system with software development to implement the concept of infrared optical sensing for liquid level detection. An extensive study was done and it was determined that for this system, the optical transmittance of water should be low while the optical transmittance of PET should be high. The optical spectrum which is suitable for this application was determined to be in the range of 1350nm to 1500nm. A signal conditioning circuitry was designed to channel the signal from the photodetector to the microcontroller. A program was developed using C-programming language in order to carry out all the input/output control functions. A graphical user interface (GUI) was designed to interface with the microcontroller such that the system was user-friendly. Furthermore, a driver circuitry was designed to provide stable voltage and current supply to the laser diode that was acting as the infrared light source.

Original languageEnglish
Title of host publication2015 IEEE Student Conference on Research and Development, SCOReD 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages294-299
Number of pages6
ISBN (Electronic)9781467395724
DOIs
Publication statusPublished - 01 Jan 2015
EventIEEE Student Conference on Research and Development, SCOReD 2015 - Kuala Lumpur, Malaysia
Duration: 13 Dec 201514 Dec 2015

Other

OtherIEEE Student Conference on Research and Development, SCOReD 2015
CountryMalaysia
CityKuala Lumpur
Period13/12/1514/12/15

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Computer Networks and Communications
  • Computer Science Applications

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  • Cite this

    Sing, L. Y., & Ker, P. J. (2015). A microcontroller-based system for liquid level detection using infrared sensing. In 2015 IEEE Student Conference on Research and Development, SCOReD 2015 (pp. 294-299). [7449343] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCORED.2015.7449343