Voltage sensor circuit for an arc welding wire feed control
US3978311A · kind A · utility
22Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1974 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Mar 26, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor circuit coupled to an arc welding system and responsive to the arc welding voltage including an oscillator and means for varying the frequency thereof in response to the arc voltage, light emitting means responsive to the oscillator frequency, and detecting circuit means responsive to the light emitting means for providing a DC voltage proportional to the arc voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.