1979
DOI: 10.1109/tpas.1979.319480
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Pressure Waves Due to Arcing Faults in a Substation

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Cited by 59 publications
(20 citation statements)
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“…The basic principle is that the sound changes along with arc power oscillation [25]. Oscillation in arc power can be caused by changes in welding speed, shielding gas flow, current, voltage etc.…”
Section: Other Sensorsmentioning
confidence: 99%
“…The basic principle is that the sound changes along with arc power oscillation [25]. Oscillation in arc power can be caused by changes in welding speed, shielding gas flow, current, voltage etc.…”
Section: Other Sensorsmentioning
confidence: 99%
“…Un impulso de menor amplitud se produce cuando una extinción de arco así como un impulso de gran amplitud se produce cuando una ignición de arco ocurre (ver Figura 5c). Cabe resaltar que es posible notar el retardo entre las señales acústicas y electicas que se deben a su velocidad de propagación en el aire, pero que mientras éstas no superen los 400 ms, no se verán comprometidas con la adecuada representación de la dinámica del arco eléctrico [11,12]. Investigaciones en monitoreo acústico mostraron que existe una relación entre el sonido producido y la potencia del arco que es expresada mediante la ecuación 1.…”
Section: Emisiones Acústicas Y Electromagnéticasunclassified
“…It is known that the specialized welders use an acoustic and visual combination for the monitoring and control of the welding process (Kralj et al, 1968). In the end 70 years' measurement of electrical arc voltage was successfully carried out by acoustical methods (Drouet, 1979(Drouet, , 1982. The welding arc sound represents the behavior of the electrical parameters of the welding arc, consequently this fact make possible monitoring the stability of the welding process through the sound.…”
Section: Acoustic Sensingmentioning
confidence: 99%
“…This c h a n g e p r o d u c e s p r e s s u r e v a r i a t i o n s t h a t a r e a i r b o r n e transported and sensing by the microphone. The sound pressure from electric arc is a consequence of amplitude modulation of arc voltage and welding current (Drouet, 1979(Drouet, , 1982. This relation is expressed by the equation (17).…”
Section: Welding Electrical Arc and Acoustical Signalsmentioning
confidence: 99%