New Filters for Pyroelectric Detectors
Now Available with NDIR Devices: Selectively Measure Water Vapor and Methane in Gas Mixtures
D77-033
To keep it short: Pyroelectric detectors are used in gas analysis. Each gas can be detected using a very specific wavelength – the so-called absorption wavelength.
Moisture is often tested with the wavelengths 1.94 µm and 2.9 µm; however, in this case, the absorption wavelengths of CO2 overlap the signal: with these wavelengths, the moisture of the gas mixtures can only be determined using complex measurement equipment.
However, with simple NDIR measurement devices, it is possible to achieve a reliable measurement: here, you only require the right filter and a suitable light source.
The central wavelengths of our new filters are selected in such a way as to significantly reduce the crosstalk to other gases to achieve uncomplicated measurements with NDIR measurement devices.
These three new filters are available for our pyro detectors:
- For the measurement of methane (CH4):
lCWL = 7.91 µm +/- 160 nm - For the measurement of alcohol mixtures:
lCWL = 9.50 µm +/- 450 nm - For the measurement of moisture (water vapor):
lCWL = 5.78 µm +/- 180 nm
An overview of all filters and filter curves can be found under the webcode provided!
Datasheet:
Further product information:
Pyroelectric Detectors
Contact:
| Contact Person: | Michaela Böhme |
| Company: | Laser Components Germany GmbH |
| Address: | Werner-von-Siemens-Str. 15 |
| ZIP / City: | 82140 Olching |
| Phone: | +49 (0) 8142 2864-105 |
| Fax: | +49 (0) 8142 2864-11 |
| Email: | michaela.boehme@lasercomponents.com |
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