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Automated electrostatic probe device of high resolution and accuracy

Abstract : In this work, an automated apparatus for driving single electrostatic probes and acquiring the plasmarelated data has been designed and fabricated. The voltage range of the present system is ±110 V with an adjustable voltage step as low as 3 mV. Voltage and current measurements are carried out with high resolution and high accuracy circuits, both based on 16 bit analog-to-digital converters. The code embedded in a micro-controller, schedules the operation of the device and transfers the experimental data to a personal computer. The modular design of the system makes possible its modification and thus increases its adaptability to different plasma setups. Finally, the reliable operation of the entire device is confirmed by tests in Electron Cyclotron Resonance plasma. © 2014 AIP Publishing LLC.
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Submitted on : Friday, February 13, 2015 - 9:22:58 AM
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S. Aleiferis, P. Svarnas. Automated electrostatic probe device of high resolution and accuracy. Review of Scientific Instruments, American Institute of Physics, 2014, 85 (12), pp.123504. ⟨10.1063/1.4903354⟩. ⟨in2p3-01116299⟩



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