Plasma Diagnostics : Measuring Techniques and Probes

At the Institut für Raumfahrtsysteme a large variety of measuring techniques are performed in the variousplasma wind tunnels as well as in the test facilities for electric propulsion to determine the conditions in the plasma.

The most important processes and techniques are listed in the following overview.

• Invasive Measuring Techniques
  • Mechanical Plasma Probes
  • Electrostatic Probes
  • Mass Spectrometry

• Non-Invasive Measuring Techniques
  • Pyrometry
  • Emission Spectroscopy
  • Fabry-Perot Interferometry (FPI)
  • Laser Induced Flourescence (LIF)

• Thrust Measurement with Electric Propulsion Devices

All measuring processes are introduced and explained in the lecture entitled: Plasma Flow Diagnostics