Pressure sensor assemblies with protective pressure feature
US11118992B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0618
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Pressure sensor assemblies comprise a sensor body having a membrane within the body for placement in communication with a fluid from an external source and determining a pressure of the fluid. A support is connected with the body and includes a channel extending therethrough for receiving the fluid, wherein the channel is in fluid-flow communication with the membrane. A substrate is connected with the support and comprises a channel extending therethrough for receiving the fluid from an external source. The support may be formed from a material having a coefficient of thermal expansion that is between a coefficient of thermal expansion of the support and a coefficient of thermal expansion of the external fluid source connected with the substrate. One of the substrate or the support comprises a fluid pressure mitigation feature for mitigating the transmission of a pressure spike in the fluid to protect the sensor membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.