Pressure sensor embedded in a metering device
US12281925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2022 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jul 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An example pressure-sensing device includes a pipe or conduit having upstream and downstream connectors for respective upstream and downstream transducers to measure fluid (e.g., water) flow. The conduit may be made at least in part of a resiliently deformable material. A deformable electrode of a capacitor may be mounted in contact with a dry-side surface of an area of the resiliently deformable material. The wet-side surface of the area may define part of a pathway for a flow of the fluid. In operation, the area of the resiliently deformable material changes a location and/or a shape of the deformable electrode in response to changes in fluid pressure. A fixed electrode of the capacitor is separated by a dielectric material (e.g., air or an insulator) from the deformable electrode, and a circuit determines a pressure of the fluid based at least in part on a capacitance between the deformable electrode and the fixed electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.