Method of manufacture of strain gauges

Details Method of manufacture of strain gauges Method of manufacture of strain gauges

1986-07-17

1987-07-21

Echols, Percy W.

Metal working

Method of mechanical manufacture

Electrical device making

29620, 29885, 156644, 156663, H01C 1706

Patent

active

046808582

ABSTRACT:
In the manufacture of an electrical strain gauge the strain-responsive circuit element is formed from a thin film deposit on a surface of a metal substrate on which an insulating film has already been deposited. Connections are made directly to the circuit element by the ends of conductor leads that are bonded into insulating plugs in apertures in the substrate. The plugs and the insulating film are glasses to which the substrate and the circuit element are bonded. A further glass layer encapsulates the circuit element. As a result a very robust form of gauge is provided that can be used in high temperatures and in chemically active environments.

REFERENCES:
patent: 3444619 (1969-05-01), Lomerson
patent: 3638160 (1972-01-01), Huddleston
patent: 3808678 (1974-05-01), Kubo et al.
patent: 3838379 (1974-09-01), Gieles et al.

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