Fastener characterization with an electromagnetic acoustic...

Details Fastener characterization with an electromagnetic acoustic... Fastener characterization with an electromagnetic acoustic...

G - Physics

01

N

G01N 29/04 (2006.01) G01L 1/25 (2006.01) G01L 5/24 (2006.01) G01N 29/24 (2006.01) F16B 31/02 (2006.01)

Patent

CA 2196256

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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