Patent ID: 9435629
Filing Date: 2016-09-06
CPC Classification: G01B,Y10T

Claim Text:
1. A measuring probe for measuring the thickness of thin layers with a housing, having at least one sensor element, which is received moveably along a longitudinal axis and which comprises a magnetic pot core for receiving at least one first winding device, and which comprises a central pin arranged in the longitudinal axis of the housing, and a first and second coil of the first winding device are disposed about the central pin, and having a spherical positioning cap on the central pin pointing towards the measuring surface of the thin layer to be measured, which cap comprises a bearing surface for fitting on the measuring surface, wherein a second winding device is disposed about the spherical positioning cap, which second winding device is formed from a discoidal or annular carrier having at least one Archimedean coil, and in that a shield is provided at least partially between the first and second winding device, wherein a sleeve made from a ferritic material is provided on the spherical positioning cap and the sleeve forms the shield in a radial direction towards the second winding device.