Method of making resistance thermometer sensors

Details Method of making resistance thermometer sensors Method of making resistance thermometer sensors

1975-01-09

1976-02-24

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Electrical device making

29593, 29610R, 29613, 338 25, 338264, 338275, 338302, H01C 702, H01C 704

Patent

active

039395570

ABSTRACT:
A resistance thermometer sensor is provided by forming a path of electrically conducting material secured on an insulating base. The path is shaped as a loop having two side-by-side portions. A shorting bar connecting across these portions to short circuit part of the loop is adjusted along their length to trim the ice point resistance of the sensor as required. When suitably adjusted, the shorting bar is fastened in position, for example by welding. In one example, the sensor comprises a bifilar helix of resistance wire wound and secured on a cylindrical former.

REFERENCES:
patent: 2802925 (1957-08-01), VonSeelen et al.
patent: 2990529 (1961-06-01), Courtney-Pratt
patent: 3114125 (1963-12-01), Werner et al.
patent: 3441893 (1969-04-01), Gordon et al.
patent: 3781749 (1973-12-01), Iles et al.
patent: 3845443 (1974-10-01), Fisher
patent: 3889362 (1975-06-01), Tyler

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