B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/28, 350/32,
B23K 9/32 (2006.01) B23K 9/00 (2006.01) B23K 9/095 (2006.01)
Patent
CA 1196959
APPARATUS AND METHOD FOR PROVIDING USEFUL AUDIO FEEDBACK TO USERS OF ARC WELDING EQUIPMENT by GRAHAM S. HAWKES ABSTRACT The user of electric arc welding equipment (100, 273-275) is provided with audible feedback signals (branch 107, 108, 109 and branch 166, 109, fed to 110) which provide useful information relating to the output current (271, 272) and voltage (271, 272) of the welder (100, 273- 275). An audio tone is generated (108) and is frequency modulated by a signal (107) which corresponds to welder output voltage (271, 272). The tone (108) is amplitude modulated (109) by a signal (106) corresponding to output current (271, 272) thus providing the user (at 110) with a synthesized feedback signal having a voltage-proportional pitch and current-proportional volume. Additional modulation means (70, 80) are disclosed for introducing a current-proportional warble component to said tone.
453943
Deep Ocean Engineering Incorporated
Riches Mckenzie & Herbert Llp
LandOfFree
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