Laser Diode Applied for Distance Measurement

Authors

  • Koarakot Wattanavichean Department of Electrical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
  • Chana Lohasaptawee Department of Electrical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand

Keywords:

laser diode, distance measurement, phase comparison

Abstract

A design and construction of electronic distance measurement using laser diode is reported. The instrument is consisted of transmitter and receiver. Transmitted signal which comes from laser diode modulated with electrical signal by amplitude modulation is objected to the reflector. The reflected light is detected by photodetector and converted to electrical signal. Distance measurement is calculated by using phase comparison between electrically transmitted and received signals. The constructed instrument can measure a distance in the range of 40 m with errors of 1 - 4 %.

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Published

1999-09-30

How to Cite

Wattanavichean, Koarakot, and Chana Lohasaptawee. 1999. “Laser Diode Applied for Distance Measurement”. Agriculture and Natural Resources 33 (3). Bangkok, Thailand:386-96. https://li01.tci-thaijo.org/index.php/anres/article/view/240458.

Issue

Vol. 33 No. 3 (1999): July-September

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.