Force measuring device
US4827240A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Aug 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A force measuring device includes a rigid base plate and a first diaphragm symmetrical about a central normal axis and arranged in spaced parallel relationship to the base plate. An elastic connection between the base plate and a peripheral rim of said first diaphragm hermetically closes a cavity formed between the base plate and first diaphragm. A first projection is formed, for force introduction to the device, on an outer surface of the first diaphragm and extends along the central normal axis; a second projection extends from an inner surface along the central normal axis toward the base plate. A displacement sensor is arranged in the cavity between the base plate and second projection for sensing any displacement therebetween upon force application to the device, to generate an electrical signal indicative of the force applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.