TY - GEN
T1 - Progress on the development of multiwavelength imaging pyrometer
AU - Kaplinsky, Michael B.
AU - Li, Jun
AU - McCaffrey, Nathaniel J.
AU - Hou, Edwin S.
AU - Kosonocky, Walter F.
PY - 1996
Y1 - 1996
N2 - Experimental Multi-wavelength Imaging Pyrometer (M-WIP) is presented for remote sensing of temperature profiles of targets with unknown spectrally varying emissivity. A software package was developed for calibration and real-time M-WIP measurements. An experimental 7-filter line-sensing M- WIP system was implemented with a 320 × 122-element PtSi IR-CCD imager and an assembly of narrow-band striped IR filters in the spectral range from 1797 nm through 4512 nm. The M-WIP system was calibrated against a commercial blackbody source over temperature range from 450°C to 950°C. The signal processing included background subtraction, compensation for variation of dark current with detected signal and correction for non-linearities of IR imager response. Initial M-WIP measurements demonstrated real-time temperature resolution ΔT of ±1°C for blackbody target over temperature range from 600°C to 900°C. Temperature resolution of ±4°C was demonstrated for the blackbody source viewed through the double polished silicon wafer with unknown spectral transmissivity in the temperature range from 500°C to 950°C.
AB - Experimental Multi-wavelength Imaging Pyrometer (M-WIP) is presented for remote sensing of temperature profiles of targets with unknown spectrally varying emissivity. A software package was developed for calibration and real-time M-WIP measurements. An experimental 7-filter line-sensing M- WIP system was implemented with a 320 × 122-element PtSi IR-CCD imager and an assembly of narrow-band striped IR filters in the spectral range from 1797 nm through 4512 nm. The M-WIP system was calibrated against a commercial blackbody source over temperature range from 450°C to 950°C. The signal processing included background subtraction, compensation for variation of dark current with detected signal and correction for non-linearities of IR imager response. Initial M-WIP measurements demonstrated real-time temperature resolution ΔT of ±1°C for blackbody target over temperature range from 600°C to 900°C. Temperature resolution of ±4°C was demonstrated for the blackbody source viewed through the double polished silicon wafer with unknown spectral transmissivity in the temperature range from 500°C to 950°C.
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M3 - Conference contribution
AN - SCOPUS:0029748097
SN - 0819421278
SN - 9780819421272
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 178
EP - 189
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Dereniak, Eustace L.
A2 - Sampson, Robert E.
T2 - Infrared Detectors and Focal Plane Arrays IV
Y2 - 10 April 1996 through 11 April 1996
ER -