Method of stress-optical force measurement and measurement device for performing the method
US5028130A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/241
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of stress-optical force measurement where a linearly polarized light ray is guided into a stress-optical measurement array consisting of several measurement members on which the force to be measured acts in a distributed manner. The light ray successively traverses the measurement members while being influenced in a force-dependent manner and is applied to a subsequent evaluation unit for evaluation. The invention also relates to a measurement device for performing the method, comprising a measurement array and an evaluation unit between two plates which are arranged in parallel at a distance from one another. The measurement array consists of at least three spaced stress-optical measurement members which keep the plates at a distance from one another, influence the light ray in a force-dependent manner, and guide the light ray into the evaluation unit arranged between two measurement members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.