Inductive proximity sensor for detecting magnetic and non-magnetic metallic objects
US5767672A · kind A · utility
21Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Sep 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/952
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A universal inductive proximity detector including an oscillator, whose oscillating circuit is powered by a current source. A fixed frequency master oscillator 16, which controls the current source 18, is coupled to the oscillator 10 so that the current source excites the oscillating circuit with a pulsed direct current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.