Temperature measuring sensors and methods for adjusting same

Details Temperature measuring sensors and methods for adjusting same Temperature measuring sensors and methods for adjusting same

1982-04-13

1984-07-31

Envall, Jr., Roy N.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

338195, 338 25, 338307, 338308, 338309, 29612, 29620, H01C 1000

Patent

active

044633378

ABSTRACT:
Methods for adjusting the resistance of temperature measuring sensors are disclosed, including measuring the resistance for a first heat-sensitive portion of the sensor at a first predetermined temperature, measuring the resistance for a second heat-sensitive portion of the temperature measuring sensor at a second predetermined temperature, determining the overall resistance for the temperature measuring sensor from these measured values, and adjusting the resistance of the second heat-sensitive portion so that the overall resistance for the temperature measuring sensor substantially corresponds to the predetermined resistance value. Temperature measuring sensors are also disclosed, including an electrically non-conductive base, first and second heat-sensitive materials applied to first and second portions of the electrically non-conductive base, the second heat-sensitive material being substantially less sensitive to variations in temperature than the first heat-sensitive material, and an electrical contact portion applied to the electrically non-conductive base, so that the first and second heat-sensitive portions are in substantial juxtaposition with each other, with the electrical contact portion therebetween.

REFERENCES:
patent: 3555671 (1971-01-01), Aizicovici
patent: 4041440 (1977-08-01), Davis et al.
patent: 4184062 (1980-01-01), Schmidt
patent: 4332081 (1982-06-01), Francis

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