Ultrasonic load measuring device with control feature

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Threaded fastener stress

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F16B 3102

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052208397

ABSTRACT:
A load indicating device and a method of using a load indicating device for monitoring the deformation in and imparting torque to a load bearing member are disclosed and claimed. An ultrasonic transducer, grown on one surface of a load bearing member, such as a fastener, is used to determine the length, stress or other tensile load dependent characteristic of the member using ultrasonic techniques.

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