Non-contact speed encoder
AssigneeOlympus NDT Canada Inc.
InventorsRémi Leclerc, Benoit Lepage, Charles Brillon
Life of this patent
Estimating the term…
Abstract
An eddy current (EC) detection system comprises an EC probe including a plurality of sensors to provide corresponding EC response signals; and processing circuitry to evaluate speed of the EC probe based on a measurement of similarity of the EC response signals; determine whether the speed of the EC probe is too fast or two slow based on quality of the measurement; and generate a command to adjust speed of the EC probe during further EC the inspection.
Claims26
An eddy current (EC) inspection system comprising:
- an EC probe including a plurality of coils to provide corresponding EC response signals;
- and
- processing circuitry configured to:
- evaluate speed of the EC probe based on a measurement of similarity of the EC response signals;
- and
- determine whether speed of the EC probe is too fast or too slow based on quality of the measurement.
A method for eddy current (EC) inspection, the method comprising:
- acquiring EC response signals from a plurality of EC coils of an EC probe;
- evaluating speed of the EC probe based on a measurement of similarity of the EC response signals;
- determining whether speed of the EC probe is too fast or too slow based on quality of the measurement;
- and
- adjusting speed of the EC probe during further EC inspection, based on the evaluation.
A non-transitory computer readable medium including instructions that, when implemented on a processor;
- cause the processor to perform operations including:
- acquiring EC response signals from a plurality of EC coils of an EC probe;
- evaluating speed of the EC probe based on a measurement of similarity of the EC response signals, wherein the measurement includes maximizing a cross-correlation of the EC response signals;
- and
- adjusting speed of the EC probe during further EC inspection, based on the evaluation.
Dependencies are inferred from the claim text.