Electromagnetically driven marine vibrator
US9411060B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Mar 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/145
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A marine vibrator has a housing that comprises a displacement member, the displacement member having a first position and a second position, the housing and the displacement member together defining an internal volume. A linear electromagnetic motor interacts with the displacement member so as to move the displacement member between a first position and a second position and correspondingly strokes the displacement member to cover a volume. The linear electromagnetic motor comprises magnets and coils that when energized create an electromagnetic force there between, wherein the linear electromagnetic motor comprises a piston and a guide that substantially surrounds the piston. The piston has incorporated therein either the coils or the magnets, and the guide having incorporated therein the other of the coils or the magnets. The piston is in interaction with the displacement member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.