Calibration of an open-path FTIR spectrometer for methane, ethylene and carbon monoxide
Conference
·
OSTI ID:351228
- Fachhochschule Duesseldorf (Germany)
- Environmental State Agency of Northrhine Westphalia, Essen (Germany)
A calibration experiment was performed by the Fachhochschule Duesseldorf co-working with the official calibration laboratory of the Environmental State Agency of Northrhine Westphalia. This was the first calibration of an OP-FTIR spectrometer at an official calibration laboratory in Germany. The calibration measurements are carried out along the standard ISO/DIS 9169, ``Air quality - Determination of performance characteristics of measurement methods``. A multipass cell with a light path of 20m was used. During these measurements the deviation between the calibration gas concentration and the measured concentration was increasing rapidly with higher concentration. This indicates a not linear calibration function of the used OP-FTIR spectrometer and might be addressed to the used spectral resolution of 1.0 wave numbers. The calibration measurement are still continued for other gases. The detailed results will be presented in this presentation.
- OSTI ID:
- 351228
- Report Number(s):
- CONF-970677--
- Country of Publication:
- United States
- Language:
- English
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