A novel technique to measure combustion gas temperature using laser-induced sparks

  • Jungwun Lee
  • , Cheolwoo Bong
  • , Hojoong Sun
  • , Jinkyu Jung
  • , Moon Soo Bak

Research output: Contribution to conferencePaperpeer-review

Abstract

A new thermometry has been proposed based on time-of-arrival measurements of acoustic waves associated with laser-induced sparks. The two laser sparks separated by known distance were produced simultaneously, then the arrival times of resulting acoustic waves were measured using a high-frequency response microphone installed in the same plane and line of the laser sparks. Because the speed of sound is basically a function of temperature, the temperatures of the region between the two laser sparks were inferred from the difference in arrival times between the acoustic waves from each of the two sparks.

Original languageEnglish
StatePublished - 2019
Event12th Asia-Pacific Conference on Combustion, ASPACC 2019 - Fukuoka, Japan
Duration: 1 Jul 20195 Jul 2019

Conference

Conference12th Asia-Pacific Conference on Combustion, ASPACC 2019
Country/TerritoryJapan
CityFukuoka
Period1/07/195/07/19

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