Optically powered remotely interrogated liquid gauging system
US10641673B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optically powered pressure sensor for sensing pressure of a liquid in a tank includes a hermetically sealed housing with at least a portion of the housing having a diaphragm, at least one sensor within the hermetically sealed housing, at least one optical emitter, and a photocell array. The hermetically sealed housing forms at least a portion of a hermetically sealed wall of the tank. The at least one sensor within the hermetically sealed housing is configured to sense the pressure of the liquid. The at least one optical emitter is configured to transmit data corresponding to the sensed pressure. The photocell array is configured to receive light and provide power to the at least one sensor and the at least one optical emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.