Apparatus and method for providing useful audio feedback to users of arc welding equipment
US4471207A · kind A · utility
69Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | May 10, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3494
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The user of electric arc welding equipment is provided with audible feedback signals which provide useful information relating to the output current and voltage of the welder. An audio tone is generated and is frequency modulated by a signal which corresponds to welder output voltage. The tone is amplitude modulated by a signal corresponding to output current thus providing the user with a synthesized feedback signal having a voltage-proportional pitch and current-proportional volume. Additional modulation means are disclosed for introducing a current-proportional warble component to said tone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.