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Title
Vorrichtung zum ortsaufgeloesten, zerstoerungsfreien Untersuchen von magnetischen Kenngroessen
Date Issued
1998
Author(s)
Altpeter, I.
Theiner, W.
Gessner, M.
Patent No
1992-4235387
Abstract
An induction sensor (1) with a local resolution in the microstructure range and a Hall probe (14) record the Barkhausen noise curve to be stored in an intermediate memory (40) at every location moved by a positioning device (22) at a distance controlled by a control circuit over the surface of a test unit (30). By allocating the corresponding parameters to the measuring locations to the characteristic parameters of the Barkhausen noise curve filtered by a discriminator (41), the natural voltage and structural condition of the test unit surface is displayed in an output device (45) at a resolution in the microstructure range
Language
de
Patenprio
DE 1992-4235387 A: 19921021