Diode laser based photoacoustic humidity sensors

Z. Bozóki, Miklós Szakáll, A. Mohácsi, Gábor Szabó, Z. Bor

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Various diode laser based photoacoustic (PA) systems applied in water vapour detection are presented. The dependence of the systems' performance on the physical and chemical properties of the measured gas is discussed. It was found that the pressure dependence of the measured PA signal is different for amplitude and wavelength modulated lasers. This difference is explained. Linearity in a concentration range of more than four orders of magnitude in combination with typical accuracy of a few percentages was proved.

Original languageEnglish
Pages (from-to)219-226
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume91
Issue number1-3
DOIs
Publication statusPublished - Jun 1 2003

Fingerprint

Humidity sensors
Photoacoustic effect
chemical properties
pressure dependence
linearity
Semiconductor lasers
water vapor
humidity
physical properties
semiconductor lasers
sensors
Steam
gases
wavelengths
Chemical properties
Water vapor
lasers
Physical properties
Gases
Wavelength

Keywords

  • Diode laser
  • Humidity detection
  • Photoacoustic

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Diode laser based photoacoustic humidity sensors. / Bozóki, Z.; Szakáll, Miklós; Mohácsi, A.; Szabó, Gábor; Bor, Z.

In: Sensors and Actuators, B: Chemical, Vol. 91, No. 1-3, 01.06.2003, p. 219-226.

Research output: Contribution to journalArticle

Bozóki, Z. ; Szakáll, Miklós ; Mohácsi, A. ; Szabó, Gábor ; Bor, Z. / Diode laser based photoacoustic humidity sensors. In: Sensors and Actuators, B: Chemical. 2003 ; Vol. 91, No. 1-3. pp. 219-226.
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