Load measuring arrangement for magnetostrictive measurement of a load on a test object as well as manufacturing method
AssigneeTrafag AG
InventorsTobias Ettenauer, Falk von Seggern
Life of this patent
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Abstract
For more accurate load measurement, a load measuring arrangement includes a test object and a load measuring device for measuring a load on the test object. The load measuring device includes at least one magnetic field detection device for detecting a magnetic field parameter changing due to load at a measuring zone of the test object. The test object is work-hardened, at least at the measuring zone and at least in a near-surface region extending from a surface facing the magnetic field detection device to a depth of 20 μm, in such a way that it has a dislocation density of at least 5e8/cm2 and/or a residual stress of at least 400 MPa in amount.
Claims14
A load measuring arrangement comprising a test object and a load measuring device for measuring a load on the test object, wherein the load measuring device includes at least one magnetic field detection device for detecting a magnetic field parameter changing due to load at a measuring zone of the test object, wherein the test object is work-hardened at least at the measuring zone and at least in a near-surface region, which extends from a surface facing the magnetic field detection device to a depth of 20 μm, in such a way that it has a dislocation density of at least 5e8/cm2 and/or a residual compressive stress of at least 400 MPa.
Dependencies are inferred from the claim text.