Thermal imaging calibration systems and methods
First Claim
Patent Images
1. A calibration flag assembly comprising:
- a main body;
a first calibration flag coupled to the main body;
a first thermoelectric cooler coupled to the main body; and
a second calibration flag coupled to the first thermoelectric cooler.
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Abstract
A calibration assembly employs a thermoelectric cooler to provide a calibration temperature for one calibration flag and a different calibration temperature for a second calibration flag. Either calibration flag is immediately available for insertion into the optical path when calibration of the thermal imaging device is required. Consequently, the time required to calibrate a thermal imaging device within a thermal imaging system is greatly reduced.
14 Citations
21 Claims
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1. A calibration flag assembly comprising:
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a main body;
a first calibration flag coupled to the main body;
a first thermoelectric cooler coupled to the main body; and
a second calibration flag coupled to the first thermoelectric cooler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of calibrating a thermal imaging device, the method comprising:
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operating a first thermoelectric cooler to adjust a temperature of a first calibration flag and a second calibration flag to a first calibration temperature and a second calibration temperature, respectively;
inserting into an optical path of the thermal imaging device the first calibration flag; and
inserting into the optical path the second calibration flag. - View Dependent Claims (12, 13, 14)
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15. A thermal imaging system comprising:
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a thermal imaging sensor adapted to receive thermal radiation through an optical path; and
a calibration flag assembly that provides thermal calibration images, when inserted into the optical path, to assist in performing non-uniformity calibration, wherein the calibration flag assembly comprises;
a main body;
a first calibration flag coupled to the main body;
a first thermoelectric cooler coupled to the main body; and
a second calibration flag coupled to the first thermoelectric cooler. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification