Apparatus for determining the position and velocity of a moving object
US5418468A · kind A · utility
11Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2403
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for determining the position of a movable object is disclosed. A pair of fixed elements having spaced electrically conductive surfaces form a capacitor. A movable element having an electrically nonconductive composition is connected to the movable object. The movable element is disposed between the fixed element pair. In response to the movement of the movable element, the capacitance value of the variable capacitor changes. A circuit detects the change in capacitance and determines the relative position of the movable object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.