Designed to measure radiant fluxes, the thermopile CA2 is sensitive to radiation from 0.2 to 50 µm, and has a field of view of 10 º. The field of view is determined by cylindrical brass housing, that contains a conical reflector and a removable glass window.
The thermopile is ideal for control (ovens) or demonstration (schools) purposes and can be used for reference-measurements.
The CA 2 thermopile contains a thermal detector and responds to the total power absorbed. Because the absorber is coated with Kipp & Zonen Carbon Black paint it is spectrally non-selective.
The thermopile output is a voltage that is proportional to the radiation that is received.
Irradiance measurements are easily affected by convection and thermal radiation losses to the environment. Therefore a glass window can shield the detector. By using this window, the spectral range is limited to 0.3 to 3 µm.
The thermopile is delivered with a calibration certificate
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