23 March 2001 New blackbody calibration source for low temperatures from -20 C to +350 C
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Calibration procedures for infrared thermometers and thermal imaging systems require radiation sources of precisely known radiation properties. In the physical absence of an ideal Planck's radiator, the German Committee VDI/VDE-GMA FA 2.51, 'Applied Radiation Thermometry', agreed upon desirable specifications and limiting parameters for a blackbody calibration source with a temperature range from -20 degree(s)C to +350 degree(s)C, a spectral range from 2 to 15 microns, an emissivity greater than 0.999 and a useful source aperture of 60 mm, among others. As a result of the subsequent design and development performed with the support of the laboratory '7.31 Thermometry' of the German national institute of natural and engineering sciences (PTB), the Mester ME20 Blackbody Calibration Source is presented. The ME20 meets or exceeds all of the specifications formulated by the VDI/VDE committee.
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Ulrich Mester, Ulrich Mester, Peter Winter, Peter Winter, } "New blackbody calibration source for low temperatures from -20 C to +350 C", Proc. SPIE 4360, Thermosense XXIII, (23 March 2001); doi: 10.1117/12.420977; https://doi.org/10.1117/12.420977

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