Methods and devices for inspection of pipelines
US11125725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2017 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2636
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for inspection of pipelines are disclosed herein. In one embodiment, an electromagnetic acoustic transducer (EMAT) transceiver (TRX) for inspecting a pipe includes a multichannel EMAT transmitter (TX) having multiple collocated transmitter coils. The EMAT TX can generate forward-propagating ultrasound waves and backward-propagating ultrasound waves. The forward-propagating ultrasound waves have higher amplitude than the backward-propagating ultrasound waves. The EMAT TRX also includes a multichannel EMAT receiver (RX) having multiple receiver coils that can receive the ultrasound waves transmitted by the EMAT TX through the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.