Sensor for recording extension and stress in solid material
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United States of America Patent
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Oct 19, 2004
Grant Date -
Feb 12, 2004
app pub date -
Jul 8, 2003
filing date -
Jun 19, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A force transducer is inserted into a small boring inside a test object. Inside the boring, it can measure the elastic extensions caused by the surrounding stress matrix. The force transducer is provided in two parts. Both parts are provided with a conical inner boring or conical outer periphery in such a manner that they can be held inside the boring of the test object by a tractive force. In order to span a large tolerance zone, the outer part is axially provided with multiple slits on both sides. The outer part is provided with a polygonal shape and thereby detects the deformations to be measured, not over the entire periphery, but it records theres via the contacts axially oriented through the axial lines. The extension is integrated in a peripheral direction between the contacts and is transferred into the inner part.
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