Patent Number: 6,798,194

Title: Method for measuring a gap between a proximity probe and a conductive target material

Abstract: A digital eddy current proximity system including a digital impedance measuring device for digitally measuring the proximity probes impedance correlative to displacement motion and position of a metallic target object being monitored. The system further including a cable-length calibration method, an automatic material identification and calibration method, a material insensitive method, an inductive ratio method and advanced sensing characteristics.

Inventors: Slates; Richard D. (Minden, NV)

Assignee: Bently Nevada, LLC

International Classification: G01B 7/00 (20060101); G01B 7/02 (20060101); G01D 5/12 (20060101); G01D 18/00 (20060101); G01D 5/20 (20060101); G01B 007/14 (); G01R 027/08 ()

Expiration Date: 09/28/2012