Brake disc surface temperature measurement using a fiber optic two-color pyrometer
نویسندگان
چکیده
A fiber optic two-color pyrometer was developed for brake disc surface temperature measurement. The two-color pyrometer is composed of a fluoride glass fiber and two HgCdTe detectors equipped with bandwidth filters. The two-color pyrometer allows the measurement of brake disc temperature in the 200-800 °C range with a time resolution above 7 μs. Calibration formula for the signals obtained using a blackbody of known temperature are used to compute the true temperature of a known temperature target. Finally the two-color pyrometer is used to measure the disc surface temperature and the surface emissivity during braking.
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تاریخ انتشار 2008