Calibration of a CO2 laser-based ethylene photoacoustic detector

Authors

  • Raymund Sarmiento ⋅ PH Department of Physics, University of San Carlos
  • Dioscoro Villagonzalo ⋅ PH Department of Physics, University of San Carlos
  • Adonis Flores ⋅ PH Department of Physics, University of San Carlos
  • Erwin Orosco ⋅ PH Department of Physics, University of San Carlos
  • Roland Otadoy ⋅ PH Department of Physics, University of San Carlos
  • Ben Zuidberg ⋅ PH Department of Physics, University of San Carlos
  • Cor Sikkens ⋅ NL Department of Molecular and Laser Physics, Radboud University, The Netherlands

Abstract

We have calibrated an extracavity CO2 laser-based photoacoustic detector for ethylene. The 10P14 line at 943.43 cm−1 was selected as it is highly absorbed by ethylene molecules. The measured absorption coefficient is (34 ± 1.8) cm−1atm−1. The detector yields a photoacoustic signal of (3.6 ± 0.16) mV/W per 1 ppm of ethylene. A measurement of ethylene emitted by an overripe banana was done to demonstrate its sensitivity.

SPP 2005 Proceedings Cover

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Published

2005-10-26

Issue

2005: Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress

Section

Poster Session PB

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How to Cite

[1]
“Calibration of a CO2 laser-based ethylene photoacoustic detector”, Proc. SPP, vol. 23, no. 1, p. SPP-2005-PB-37, Oct. 2005, Accessed: Apr. 06, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2005-PB-37