Conductive strip detector
US5650729A · kind A · utility
9Cited by
18References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/955
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A conductive strip detector comprises a capacitor defined by an elongate, electrically conductive element (5) and a laterally spaced, electrically conductive member (1). Monitoring circuitry (15,16) monitors changes in the capacitance of the capacitor when an electrically conductive strip substantially parallel with the element is passed by the capacitor and indicates when a change in capacitance is due to the presence of an electrically conductive strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.