New Filters for Pyroelectric Detectors

Moisture Verification with NDIR Measurement Devices
pyro detector duo (PresseBox) (Olching, ) 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 at 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 actually only be determined using complex measurement equipment. With the right filters and a suitable light source it is also possible to achieve a reliable measurement with simple NDIR measurement devices.

LASER COMPONENTS brings three new filters on the market that are selected in such a way as to significantly reduce the crosstalk to other gases to achieve uncomplicated measurements with NDIR measurement devices.

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

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Trade Shows

analytica, May 10-13, 2016, Messe München, Booth A2.500
Sensor + Test, May 10-12, 2016, Messe Nürnberg, Hall 1, Booth 256
LaSys, May 31- June 02, 2016, Messe Stuttgart, Booth 4A16
AngaCom, June 07-09, 2016, Messe Köln, Hall 10.2, Booth J35
Optatec, June 07-09, 2016, Messezentrum Frankfurt/Main, Hall 3, Booth E01
Photonex Scotland Roadshow, June 08, 2016, Heriot- Watt University UK, Booth S22
Sensors Expo & Conference, June 22-23, 2016, San Jose USA, Booth1240
Automatica, June 21-24, 2016, Messe München, Booth B5.503
Photon16, September 06-07, 2016, University of Leeds UK, Booth 5
ECOC 2016, September 19-21, 2016, Düsseldorf, Booth 102
Photonex Coventry 2016, October 1-13, 2016, Ricoh Arena UK, Booth D15
VISION 2016, November 08-10, 2016, Messe Stuttgart, Booth 1C33
Electronica 2016, November 08-11, 2016, Messe München,


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D-82140 Olching
Claudia Michalke
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