Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen
Patent
1991-04-19
1992-07-07
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
In spaced noncontact relationship to specimen
374126, 374130, G01J 508, G01J 552, G01J 562
Patent
active
051277425
ABSTRACT:
A thermal radiation sensor is joined with a shutter that is adapted for reversible interruption of radiation from an object to the sensor. The shutter includes an integral electrically operated heater for maintaining a portion of the shutter at a predetermined temperature as a thermal reference for the sensor. The sensor is alternatively exposed to radiation from the object and the thermal reference portion of the shutter, and provides a first signal representative of the radiation that it receives from the object and a second signal representative of the radiation that it receives from the reference portion. An electronic circuit is connected to the sensor for receiving the first and second signals, for calculating the temperature of the object, and for providing a signal representative of the calculated temperature.
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Cuchlinski Jr. William A.
Gutierrez Diego F. F.
Seemann Robert A.
Thermoscan Inc.
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