Electromagnetic acoustic transducer fault detection circuit
US5684406A · kind A · utility
9Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Mar 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2829
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fault detecting circuit for use with an electromagnetic acoustic transducer having an electrostatic shield and a wear surface for determining when the wear surface for contacting test surfaces has developed holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.