Introducing an Inductive Loop Sensor as an Alternative to Record the Phenomena of a Dense Plasma Focus of 400 J

Luis Orellana, Jorge Ardila, Gonzalo Avaria, Benjamín Cevallos, Cristian Pavez, Roger Schurch, Leopoldo Soto

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferenciarevisión exhaustiva

1 Cita (Scopus)


Pulsed plasma discharges are of interest for their capability to produce pulsed high energy radiation and particle beams. One of them is the dense plasma focus, a device that has renewed interest for physics research and possible industrial applications. The plasma produced with this device corresponds to the z-pinch phenomena and lasts between 1–10 ns. Electrical quantities such as the voltage across the electrodes of the vacuum chamber where the plasma dynamic takes place and the circuit current are used for the diagnostic of these devices. The short duration of the high density plasma that is produced implies a challenge when choosing a proper sensor. Typically, Rogowski coils wrapped around a conductor are used for measuring the time derivative of the circuit current. The reproducibility of Rogowski coils and variation of its frequency response due to movements can be an issue. An inductive loop sensor was developed as an alternative to measure fast and low amplitude transients of partial discharges. In this work, the use of the inductive loop sensor is proposed as an alternative sensor for the dense plasma focus operation measurement. Simultaneous measurements of both the Rogowski coil and inductive loop sensor were carried out on a low energy dense plasma focus. A comparison between both sensors was made in time and time-frequency domains. Wavelet transform was used in the time-frequency analysis. Further studies regarding the pinch detection were made with correlations between the signal values at this particular instant of the device operation. The results indicated that similar results in the characterization of the dense plasma focus operation can be obtained with the inductive loop sensor. In terms of the frequency response at time of pinch both sensors yielded similar results. A linear tendency between the signal values at time of pinch was found. Future work will be carried out to fully adapt the inductive loop sensor for its application in pulsed power technology.

Idioma originalInglés
Título de la publicación alojadaProceedings of the 21st International Symposium on High Voltage Engineering - Volume 1
EditoresBálint Németh
Número de páginas11
ISBN (versión impresa)9783030316754
EstadoPublicada - 2020
Publicado de forma externa
Evento21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Hungría
Duración: 25 ago 201929 ago 2019

Serie de la publicación

NombreLecture Notes in Electrical Engineering
Volumen598 LNEE
ISSN (versión impresa)1876-1100
ISSN (versión digital)1876-1119


Conferencia21st International Symposium on High Voltage Engineering, ISH 2019

Áreas temáticas de ASJC Scopus

  • Ingeniería industrial y de fabricación


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