Thermal measuring and testing – Thermal calibration system
Patent
1987-02-18
1988-09-06
Yasich, Daniel M.
Thermal measuring and testing
Thermal calibration system
53507, 21912162, 2502521, 374132, 374141, 374164, G01D 1800, G01J 510, G01K 1300
Patent
active
047688858
ABSTRACT:
A temperature monitoring system includes a linear array of six pyroelectric sensors mounted in a block. A through hole is provided in the block for each sensor. A bore in the block having an axis which intersects the axis of each through hole accommodates a rotary shaft. The shaft is provided with a diametrically extending bore for each through hole. Thus rotation of the shaft alternately exposes each sensor to the shaft itself and to an object in the line of sight of each sensor as defined by its corresponding throughhole. The output signal from each sensor is differentiated and used to provide a temperature measurement. The output signal is corrected for any drift in the temperature of the shaft or block. This is effected by periodically bringing a heated calibration head operating at a known temperature into the line of sight of each sensor.
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patent: 4666297 (1987-05-01), Gonzalez
Metal Box Public Limited Company
Yasich Daniel M.
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