Thermocouples

Details Thermocouples Thermocouples

1988-03-07

1989-09-12

Shoap, Allan N.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

136232, G01K 704

Patent

active

048654620

ABSTRACT:
A thermocouple, particularly for use in a gas turbine engine, comprises a mineral-insulated thermocouple element having its sensing end reduced in diameter by swaging, to increase sensitivity and reduce response time. Instead of swaging the whole sensing end to the reduced diameter, with a relatively large taper angle, typically about 14.degree., between the swaged and unswaged portions, the end is provided with a more gradual taper extending over substantially its whole length and having an inclusive taper angle of not more than 5.degree., and preferably about 21/2.degree..

REFERENCES:
patent: 3449174 (1969-06-01), Kleinle
patent: 3451860 (1969-06-01), Schwartzwalder et al.
patent: 3463674 (1969-08-01), Black et al.
patent: 3538596 (1970-11-01), Davis et al.
patent: 3649368 (1972-03-01), Sine
patent: 3713899 (1973-01-01), Sebestyen
patent: 3942242 (1976-03-01), Rizzolo
patent: 4001045 (1977-01-01), Smith
patent: 4018624 (1977-04-01), Rizzolo
patent: 4253469 (1981-03-01), Aslan
patent: 4527909 (1985-07-01), Dale et al.

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