Microwire temperature sensors constructed to eliminate stress-related temperature measurement inaccuracies and method of manufacturing said sensors
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United States of America Patent
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Dec 15, 2015
Grant Date -
Sep 13, 2012
app pub date -
Mar 5, 2012
filing date -
Mar 9, 2011
priority date (Note) -
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Abstract
Improved, highly accurate microwire sensors (10) include a microwire assembly (14) including at least one primary, temperature-sensing microwire (16) encased within a closed-ended, stress-absorbing protective tube (12). Preferably, the sensor assembly (14) includes a plurality of microwires, e.g., a primary temperature-sensing microwire (16), a reference microwire (18), and a calibration microwire (20). The sensors (10) may be embedded within a heat-treatable or curable material (24) to monitor the temperature of the material (24) over a selected temperature range, e.g., during a pre- and/or post-curing temperature range. The tube (12) is formed of material which does not appreciably magnetically bias the microwire assembly (14), and substantially prevents forces exerted on the tube (12) from distorting the sensor assembly (14).
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