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Related Experiment Videos

Fast capacitive probe for electromagnetic pulse diagnostic.

A Lorusso1, V Nassisi, M V Siciliano

  • 1Laboratorio di Elettronica Applicata e Strumentazione (LEAS), INFN sezione di Lecce, Department of Physics, University of Salento, Via Provinciale Lecce-Monteroni, Lecce, Italy.

The Review of Scientific Instruments
|July 8, 2008
PubMed
Summary
This summary is machine-generated.

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This study developed a capacitive probe for rapid, high-voltage measurements. The probe ensures accurate pulse propagation in coaxial systems, enabling precise high-voltage detection.

Area of Science:

  • Electrical Engineering
  • Physics

Background:

  • Fast pulses commonly propagate in coaxial structures.
  • Accurate high-voltage and current measurements are crucial in various scientific and engineering fields.

Purpose of the Study:

  • To develop and characterize a capacitive probe for fast, high-voltage measurements.
  • To design a probe compatible with coaxial structures, ensuring signal integrity.

Main Methods:

  • Designed a capacitive divider probe with a folded cylindrical ring electrode.
  • Matched the probe's characteristic impedance to the coaxial structure.
  • Analyzed probe behavior terminated with a 520 Ohm load.

Main Results:

  • Achieved a voltage amplification of (3.6+/-0.1) x 10(-4).

Related Experiment Videos

  • Determined a current attenuation factor of 56+/-1 AV.
  • Observed a response rise time under 320 ps, limited by oscilloscope bandwidth.
  • Demonstrated capability for voltage measurements up to 100 kV.

    • Conclusions:

    • The developed capacitive probe is suitable for fast, high-voltage measurements in coaxial systems.
    • The probe design ensures signal integrity and accurate pulse propagation.
    • The probe's performance characteristics meet the requirements for high-voltage applications.