Load cell
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United States of America Patent
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Oct 13, 1992
Grant Date -
N/A
app pub date -
Oct 30, 1990
filing date -
Oct 31, 1989
priority date (Note) -
Expired
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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.
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