Pressure sensor plate having a plurality of measuring diaphragms distributed in a matrix
US5866822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L15/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device for measuring various fluid pressures, the device includes a sensor plate which has fastening holes, which are distributed in matrixlike fashion over the sensor plate. Measuring diaphragms, which form end walls of blind bores in the sensor plate, are located between the fastening holes. Through fluid conduits of a hydraulic block to which the sensor plate can be secured, the measuring diaphragms can be acted upon by pressure. The evaluation is done with four strain gauges applied to each measuring diaphragm, the strain gauges being interconnected to form a Wheatstone bridge. Because it is possible to mount the sensor plate in a way that optimizes strain, it is possible to measure various pressures with minimal measurement error using one sensor plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.