Two-color temperature measurement method using BPW34 PIN photodiodes

Authors

  • Igor Bonefačić University of Rijeka, Faculty of Engineering
  • Paolo Blecich Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia

Keywords:

two-color method, PIN photodiode, non-contact temperature measurement, muffle furnace

Abstract

This work presents a simple and inexpensive technique for non-contact industrial temperature measurements based on the two-color method. Since non-contact temperature measurements require expensive instruments such as IR cameras or ratio pyrometers, a simple ratio pyrometer consisting of only two BPW34 PIN photodiodes with narrowband filters is introduced. Temperature measurements using this instrument are carried out on a muffle furnace and are verified with thermal imaging camera - FLIR Thermacam S65. Temperatures measured with both instruments are in good accordance. This method using only two photodiodes presents a reliable and cost effective alternative for temperature measurements and flame monitoring where high temperatures are expected and non-contact measurement is required, such as in industrial furnaces, gasifiers or internal combustion engines.

Author Biography

Igor Bonefačić, University of Rijeka, Faculty of Engineering

Dept. of Thermodynamics and Energy Engineering; Senior Research Assistant

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Published

2015-10-13

Issue

Engineering Review, Vol. 35, No. 3

Section

Articles

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