Non-destructive measurement of pipe wall thickness
US6561032B1 · kind B1 · utility
67Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 2000 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | May 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2634
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The average wall thickness of a pipe carrying a fluid is determined by sensing disturbances in the pipe at two spaced locations, determining the propagation velocity of coupled propagation mode signals at low frequencies resulting from the disturbances, and calculating the average pipe wall thickness between the two locations from the propagation velocity and known constants for the pipe and fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.