Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1988-02-18
1989-05-23
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
374163, 374 3, 374185, 174113C, 174131A, G01K 700
Patent
active
048325040
ABSTRACT:
A method for measuring a surface temperature of a sensor being heat-transferably contacted with a subject fluid by employing an electrically heating method in which the surface temperature is measured while passing an electrical current through an electrical conductor included in said sensor. In this measuring method, the surface temperature is expressed as a function of a specific value inherent in the sensor, an amount of the electric current supplied to the electrical conductor, and a temperature of the electrical conductor. The sensor is heat-transferably contacted with another fluid whose physical properties are previously known, a surface temperature of the sensor contacted with the another fluid is determined by satisfying a relational equation between the physical properties of the another fluid and the surface temperature, and the specific value inherent in the sensor is determined by using the determined surface temperature. The surface temperature of the sensor contacted with the subject fluid is measured by using the determined specific value inherent in the sensor. Therefore, various physical properties of the subject fluid can be precisely measured even if the theoretically determined specific value of sensor is different from the actual specific value.
REFERENCES:
patent: 3216236 (1962-11-01), Rohrbach
patent: 3530718 (1967-10-01), Ehlo
patent: 4050289 (1977-09-01), Fairbairn et al.
patent: 4536851 (1985-08-01), Germanton et al.
Hori Tomoshige
Itoh Kensuke
Cuchlinski Jr. William A.
Gutierrez Diego F. F.
Snow Brand Milk Products Co. Ltd.
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