Multi-channel pyrodetectors: dual-channel, triple-channel and quad-channel versions are available.
Multi-channel pyroelectric detectors (multi-color detectors) are mostly used for gas analysis. Aside from a reference filter, each measurement channel is tuned to a gas absorption line by integrating a bandpass filter. The gas concentration is calculated by applying the Beer-Lambert law. A reference channel improves the long-term stability of the measurement.
Laser Components offers a wide variety of standard bandpass filters for gas analysis (e.g., CO2, CO, NO2, SO2, and hydrocarbons) and reference purposes.
In our datasheet on filters you will find the corresponding filters. Additional filters are available upon request.
The same fundamental principles apply to both multi-channel and one-channel detectors in current mode. The detectors in current mode are particularly easy to integrate into systems; in fact, it is almost identical to Plug&Play integration.
The most compact detector is the three-channel version in a TO-39 housing!
The following product lines are available:
Pyroelectric detectors can be used for:
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