Load cell

Details Load cell Load cell

1990-10-30

1992-10-13

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177229, 7386265, 338 5, G01G 314, G01G 308, G01L 122

Patent

active

051542471

ABSTRACT:
Disclosed herein is a load cell provided with a high-precision load-sensing member of ceramic on which are formed patterns of thin-film resistance for strain gages which are not subject to breakage and variation of resistance. The load cell comprises a bending beam of ceramic material and strain gages of thin-film resistance formed thereon, with the bending beam having a surface coated with amorphous glass on which are formed said strain gages of thin-film resistance. The strain gages are formed from an alloy composed of iron and one or more selected from chromium, cobalt, tungsten, molybdenum, niobium, and tantalum, and a small amount of impurities.

REFERENCES:
patent: 3742418 (1973-06-01), Randolph, Jr.
patent: 4104605 (1978-08-01), Boudreaux et al.
patent: 4291776 (1981-09-01), Kupper et al.
patent: 4633212 (1986-12-01), Johnson
patent: 4712628 (1987-12-01), Van den Brug
patent: 4737756 (1988-04-01), Bowman
patent: 4903000 (1990-02-01), Yajima et al.
patent: 4970487 (1990-11-01), Tsukahara et al.

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