Measuring device for capacitive determination of the relative position of the two with respect to one another movable parts
US4743902A · kind A · utility
42Cited by
11References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1986 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Dec 12, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2415
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring the relative movement of one object with respect to another, such as the movement of a slide with respect to a scale of a measuring instrument utilizes the capacitative effect of a series of electrodes associated with a slide and another series of electrodes associated with the cooperating scale, the changes in capacity caused by relative movement between the two members being analyzed by an electronic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.