Device for digitally measuring electrical impedance
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United States of America Patent
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Mar 9, 2004
Issued Date -
N/A
app pub date -
May 27, 2003
filing date -
Oct 22, 1999
priority date (Note) -
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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.
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