The group "Allgemeine Elektrotechnik und Plasmatechnik" at the faculty for engineering and information science.

Other Access

The information on this page (the dataset metadata) is also available in these formats.

JSON RDF

via the DKAN API

Determination of NO densities in a surface dielectric barrier discharge using optical emission spectroscopy

A new computationally assisted diagnostic to measure NO densities in atmospheric-pressure microplasmas by Optical Emission Spectroscopy (OES) is developed and validated against absorption spectroscopy in a volume Dielectric Barrier Discharge (DBD). The OES method is then applied to a twin surface DBD operated in N2 to measure the NO density as a function of the O2 admixture (0:1%–1%). The underlying rate equation model reveals that NO(A2Σ+) is primarily excited by reactions of the ground state NO(X2Π) with metastables N2(A3Σ+u).

FieldValue
Publisher
Authors
Release Date
2021-02-03
Resources
Identifier
6df02003-bed9-4395-a3c6-26bc028828da
Permanent Identifier (URI)
Is supplementing
Plasma Source Name
Plasma Source Application
Plasma Source Specification
Plasma Source Properties
Both plasma sources are driven by damped sine wave pulses with a microsecond rise time. The pulse repetition frequency is chosen as f = 1000 Hz, and the voltage amplitude can be varied from 0 to 20 kVpp. Each high voltage (HV) pulse has a sequential profile with damped oscillations and a frequency of ~650 kHz.
Plasma Source Procedure
The different nitrogen/oxygen gas mixtures are chosen as follows: 99.9%/0.1%, 99.5%/0.5%, and 99%/1%. The total gas flow amounts to 10 slm in case of the SDBD setup and to 2 slm for the VDBD setup.
Plasma Medium Name
Plasma Medium Properties
The different nitrogen/oxygen gas mixtures are chosen as follows: 99.9%/0.1%, 99.5%/0.5%, and 99%/1%. The total gas flow amounts to 10 slm in case of the SDBD setup and to 2 slm for the VDBD setup.
Plasma Medium Procedure
Before gas mixtures were changed, the vessel was completely evacuated, to minimise impurities.
Plasma Target Name
Plasma Diagnostic Properties
Capacitive voltage divider (P6015A; Tektronix) Current monitor (Model 2877; Pearson Electronics) Digital oscilloscope (LeCroy9459 DUAL 350 MHz; LeCroy) Echelle spectrometer (ESA 4000; LLA Instruments, Germany) Intensified charge‐coupled camera (ICCD, 4 Picos; Stanford Computer Optics) Deuterium lamp (X2D2, Hamamatsu, Japan) Spectrometer (QE65000, OceanOptics, USA)
Plasma Diagnostic Name
Language
English (United States)
License
Public Access Level
Public
Funding Agency
Project
Contact Name
F. Kogelheide
Contact Email

Data and Resources

Project Contact Name: 
P. Awakowicz