Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1994-11-10
1996-12-03
Chilcot, Richard
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
G01N 3320
Patent
active
055810390
ABSTRACT:
To provide diagnosis of service life and maintenance requirements, a sintered ceramic body which in use is subjected to stress and undergoes change with time as a result of the stress is provided with an electrically conductive element in contact with the sintered ceramic material The element has a measurable electrical resistance which increases in dependence on the change of the ceramic body. This permits information to be obtained about said change of said body. Measuring means for the electrical resistance is connected to the conductive element. The electrically conductive element as seen in cross-section, may comprise a bundle of elongate members such as fibers or whiskers.
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Kikuchi Shigeru
Miyata Motoyuki
Saito Yukio
Yasutomi Yoshiyuki
Chilcot Richard
Dombroske George M.
Hitachi , Ltd.
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