Phased array system capable of computing gains for non-measured calibration points
US10101304B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 29, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Apr 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a calibration method and system for non-destructive testing and inspection (NDT/NDI). The method and system involve establishment of a reference database by conducting FMC acquisition on a first calibration block having standardly known indications with a first series of depths and under a laboratory standard calibration condition. Then phased-array operation is conducted on a second calibration block, which is substantially the same as the first block, having indications with a series of corresponding user measured depths and under a second calibration condition as close to the laboratory condition as possible. The calibration is then made with the gain compensation calculated based on the response signals from the indications of the second block, the first series of gain data from the reference database, and the user measured depths for the corresponding indications under the second calibration condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.