Concept
LI-COR 7500 infrared gas analyser
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0085/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | LI-COR 7500 IR gas analyser, LI-COR 7500 IR gas analyser | |
| Definition | A non-dispersive infrared gas analyser that measures carbon dioxide and water vapour concentrations in the atmosphere. The power received from the infrared source is measured at three wavelengths: one at a wavelength that is absorbed by carbon dioxide, another at a wavelength that is absorbed by water, and the third at a non-absorbing reference wavelength. The absorbance of each gas is calculated and converted to molar fraction using density, pressure and temperature data. | |
| Date | 2017-04-03T10:55:05 | |
| Identifier | SDN:L22::TOOL0085 | |
| Note | accepted | |
| Has Current Version | 4 | |
| Version | 2 | |
| 3 | ||
| 1 | ||
| version | 4 | |
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | |
| Broader | L19:SDNKG17 | sensor_model |
L05:382 | atmospheric gas analysers | |
| Related | B75:ORG00327 | LI-COR Biosciences UK Ltd |
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