Resistor element with thin porous metallic layer covered with gl

Details Resistor element with thin porous metallic layer covered with gl Resistor element with thin porous metallic layer covered with gl

1991-05-24

1992-09-01

Lateef, Marvin M.

Electrical resistors

Incased, embedded, or housed

Helical or wound element

338271, 338273, 338275, 338276, H01C 102

Patent

active

051442795

ABSTRACT:
A resistor element for determining a parameter, which includes a ceramic support having a bearing surface, an electrically resistive metallic layer formed on the bearing surface of the ceramic support, and a glass coating covering the metallic layer. The metallic layer has a plurality of pores which extend from an outer surface of the metallic layer to the bearing surface of the ceramic support, each pore having an area which is not smaller than that of a circle having a diameter of 1 .mu.m. An average spacing between adjacent ones of the pores is not larger than 5 .mu.m.

REFERENCES:
patent: 4887462 (1989-12-01), Gneiss
patent: 4903001 (1990-02-01), Kikuchi
patent: 4909079 (1990-03-01), Nishimura et al.
patent: 4911009 (1990-03-01), Maeda et al.
patent: 4920635 (1990-05-01), Yajima

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