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Digital Smoothing o...
Digital Smoothing of the Langmuir Probe I-V Characteristic
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Magnus, Fridrik (författare)
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- Gudmundsson, Jon Tomas, 1965- (författare)
- University of Iceland, Iceland
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(creator_code:org_t)
- American Institute of Physics (AIP), 2008
- 2008
- Engelska.
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Ingår i: Review of Scientific Instruments. - : American Institute of Physics (AIP). - 0034-6748 .- 1089-7623. ; 79:7
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Electrostatic probes or Langmuir probes are the most common diagnostic tools in plasma discharges. The second derivative of the Langmuir probe I-V characteristic is proportional to the electron energy distribution function. Determining the second derivative accurately requires some method of noise suppression. We compare the Savitzky-Golay filter, the Gaussian filter, and polynomial fitting to the Blackman filter for digitally smoothing simulated and measured I-V characteristics. We find that the Blackman filter achieves the most smoothing with minimal distortion for noisy data.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Electron-Energy Distribution
- Magnetron Discharge
- Plasma Parameters
- Differentiation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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