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Electrical probe characteristic recovery by measuring only one time-dependent parameter.

C Costin1, G Popa1, V Anita1

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Two simple methods recover electrical probe current-voltage characteristics by using a capacitor instead of a power supply. This simplifies experiments, requiring only one parameter measurement to determine the probe

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Area of Science:

  • Plasma physics
  • Electrical engineering

Background:

  • Characterizing electrical probes is crucial for plasma diagnostics.
  • Traditional methods often involve complex power supply setups.

Purpose of the Study:

  • To introduce two simplified methods for obtaining the current-voltage characteristic of electrical probes.
  • To reduce experimental complexity in plasma diagnostics.

Main Methods:

  • Replacing the conventional power supply with a capacitor in the probe circuit.
  • Utilizing the probe current to charge or discharge the capacitor.
  • Measuring a single time-dependent electrical parameter (either current or voltage).

Main Results:

  • The time-dependent second parameter (voltage or current) can be mathematically derived.
  • The current-voltage characteristic is successfully recovered.
  • Simplified experimental setup and data acquisition.

Conclusions:

  • These methods offer a more straightforward approach to electrical probe characterization.
  • The techniques are valuable for efficient plasma diagnostics.