Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Threaded fastener stress
Patent
1996-01-30
1997-10-07
Chilcot, Richard
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Threaded fastener stress
73597, 73601, F16B 3102
Patent
active
056750870
ABSTRACT:
A device for measuring a load on a part and for monitoring the integrity of the part such as a bolt, comprises a socket having walls defining an interior space wherein the socket engages the bolt for transmitting a load to the bolt. An electromagnetic acoustic transducer comprising a magnet and a coil is located in the interior space of the socket near the bolt. The coil provides a current while the magnet provides a magnetic field such that the magnet and the coil generate an ultrasonic signal within the bolt. A detector is used to detect and measure a change in the ultrasonic signal at the bolt for measuring the load on the bolt and for detecting any flaws in the bolt.
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Clark Steven P.
Latham Wayne M.
MacLauchlan Daniel T.
Chilcot Richard
Edwards Robert J.
Kalka Daniel S.
Noori Max H.
The Babcock & Wilcox Company
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