Sensor for detecting pressure waves in a fluid, provided with static pressure compensation
US10126192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2014 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Mar 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/187
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensor device having a chamber filled with a pressure transfer medium, the chamber having at least one window that at least partly transfers pressure waves in a fluid; an optical fiber extending longitudinally through the chamber, the optical fiber including a Fiber Bragg Grating and two mounting spots at opposite sides of the Fiber Bragg Grating; a frame having a first frame end and a longitudinally opposite second frame end; a pressure response assembly connected in parallel to a fiber portion between the two mounting spots, the pressure response assembly including a series arrangement of a pressure response element and a movement damper; and a resilient member connected in series to the frame and to a parallel arrangement of the fiber portion and the pressure response assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.