Accelerometer pig
US3973441A · kind A · utility
23Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1975 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Nov 14, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2101/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pipeline pig adapted to carry inspection components to determine flaws in a pipeline wall arising from corrosion, pitting, gouges, hard spots, scratches, metallurgical anomalies and dents causing out of round conditions is equipped with an accelerometer. The accelerometer is adapted to provide an electrical signal indicative of acceleration and deceleration in the direction parallel to the axis of the pipeline. By correlation of signals recorded by the flaw detection equipment with signals recorded from the accelerometer, dents may be readily identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.