Force sensor method and construction
US7325460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Mar 24, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2260/136
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of making a force sensor, the force sensor being particularly sensitive the axial component of a force applied along a predetermined axis, of the type including a force-receiving membrane deformable by an applied force to be sensed, the method comprising: providing the force sensor with a body of a liquid, and with a second membrane separated from said force-receiving membrane by the body of liquid; applying the force to be sensed to the center of the force-receiving membrane to thereby pressurize the liquid according to the magnitude and axis of the force applied to the force-receiving membrane; and measuring the deformation of the second membrane; wherein the force-receiving membrane is of a non-undulating configuration in its normal condition and is deformable, by a force applied to its center at an oblique angle to its surface, into an undulating configuration, to include an inwardly-bowed section on one side of its center, and an outwardly-bulged section on the opposite side of its center, such that the liquid body is pressurized by the applied force only according to the axial component of the applied force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.