Position determining apparatus
US5090131A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Dec 5, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring probe includes a fixed housing (2) and a movable stylus carrier (10) which is urged by a spring (18) into a rest position in a support (14). The support comprises six seating elements confronting corresponding seating elements (12) on the stylus carrier. Strain gauges (20) are provided on the seating elements of the supports (14) to measure the strain produced in the supports (14) by the movable member resting on them. Each strain gauge produces a signal from which any variation in strain, and hence any displacement of the movable member relative to the fixed member due to a change in forces between the two, can be determined by a computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.