An IR filter makes all the difference. Thermal detectors are naturally polychromatic, and a filter is needed to detect specific gases/wavelengths.
Single wavelengths can only be detected if corresponding narrow-band filters are used because without the appropriate filter pyroelectric detectors would not even be able to detect a single gas.
The filters for pyroelectric detectors are not available individually but only in combination with our pyroelectric detectors on a standard basis. For purposes of development, however, we offer an optical gas and flame filter kit. This kit comprises 17 IR bandpass filters integrated in a socket for a TO-39 housing.
In the datasheet below, you will find the most current filters available for selection. If the appropriate filter for your application is not listed, please inquire with us.
LASER COMPONENTS is thrilled t...