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Proceedings Paper

Calibration procedures for tunable diode laser spectrometers
Author(s): Robert Josef Muecke; Bodo Scheumann; Franz Slemr; Peter W. Werle
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Paper Abstract

The reliable operation of a TDLAS instrument for measurement of trace gas species requires a unit providing calibration gases with mixing ratios in the range of measured concentrations. It is obvious that, especially at sub-ppb-levels, calibration becomes difficult. Therefore in this paper we focus on calibration procedures for an integrated tunable diode laser spectrometer. An automated calibration system based on permeation devices with a subsequent dilution will be presented. The system meets the ISO requirements and can be used as a secondary standard for field measurements. With this instrument multi-component calibration can be performed as well as multi stage calibration. According to the ISO regulations, procedures to check the linearity and to record the calibration function for a TDL system will be described. From this calibration function the detection and determination limit can be determined by an inverse regression procedure. Some measurements will be presented and discussed under quality control and quality assurance aspects.

Paper Details

Date Published: 3 June 1994
PDF: 12 pages
Proc. SPIE 2112, Tunable Diode Laser Spectroscopy, Lidar, and DIAL Techniques for Environmental and Industrial Measurements, (3 June 1994); doi: 10.1117/12.177289
Show Author Affiliations
Robert Josef Muecke, Fraunhofer Institut fuer Atmosphaerische Umweltforschung (Germany)
Bodo Scheumann, Fraunhofer Institut fuer Atmosphaerische Umweltforschung (Germany)
Franz Slemr, Fraunhofer Institut fuer Atmosphaerische Umweltforschung (Germany)
Peter W. Werle, Fraunhofer Institut fuer Atmosphaerische Umweltforschung (Germany)


Published in SPIE Proceedings Vol. 2112:
Tunable Diode Laser Spectroscopy, Lidar, and DIAL Techniques for Environmental and Industrial Measurements
Alan Fried; Dennis K. Killinger; Harold I. Schiff, Editor(s)

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