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US 6,716,638 B1Granted
Measuring conducting paths using infrared thermography
AssigneeCyrano Sciences, Inc.
InventorChang-Meng Hsiung
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Abstract
A sensor array 120 contains two chemiresistor which generate a response 130 in the presence of an analyte. The response is detected using an infrared detector 135, such as an infrared camera The infrared detector 135 generates a thermographic image 140 for each sensor in the array. The thermographic image 140 contains a matrix of responses 150, 160 for each sensor.
Claims6
A method for assessing the uniformity in temperature distribution in regions of a sensor comprising a sensor array which comprise conduction paths, comprising:
- applying a voltage to said sensor to cause said sensor to dissipate energy;
- capturing an image of said sensor with an infrared camera to generate a thermographic image of said sensor while said sensor is dissipating energy;
- identifying conduction paths in said sensor array as regions having a higher temperature than their surroundings;
- calculating a measure of the uniformity of the temperature distribution of the image;
- and
- assessing the uniformity of the temperature distribution is said regions, using said measure, wherein a higher measure value corresponds with a more uniform temperature distribution.
3 more elements
A method for identifying the conducting path of a sensor comprising a sensor array, comprising:
- applying a voltage to said sensor to cause said sensor to dissipate energy;
- capturing an image of said sensor with an infrared camera to generate a thermographic image of said sensor while said sensor is dissipating energy;
- and
- identifying conduction paths in said sensor array as regions having a higher temperature than their surroundings.
1 more element
Dependencies are inferred from the claim text.