RF energy between charged plates?

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SUMMARY

The discussion centers on the observation of RF energy between two parallel conductive plates charged to a high voltage using a HVDC power supply. Participants suggest that the RF energy could be attributed to field emission at the cathode or corona discharge, with the highest amplitude frequency being related to the distance between the plates. The phenomenon is not attributed to external noise, indicating a direct relationship between the applied voltage and the RF energy detected on the oscilloscope.

PREREQUISITES
  • Understanding of high voltage direct current (HVDC) systems
  • Knowledge of RF energy and its generation mechanisms
  • Familiarity with corona discharge phenomena
  • Basic principles of electromagnetic fields and their interactions
NEXT STEPS
  • Research the principles of corona discharge and its effects in high voltage applications
  • Explore RF energy generation mechanisms in conductive materials
  • Study the relationship between plate distance and frequency in parallel plate capacitors
  • Investigate field emission phenomena and its implications in high voltage systems
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Electronics enthusiasts, high voltage experimenters, and physicists interested in RF energy phenomena and their applications in conductive systems.

hobbs125
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I have two parallel conductive plates.
The plates are charged to a high voltage by a HVDC power supply.

When the plates are charged rf energy is present between them.

What could be causing this?
I am thinking field emission at the cathode is causing it ,but not really understanding physics is that plausible?

What do you guys think? What could be the cause of rf occurring between two plates charged to a high dc voltage?
 
Last edited:
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Eddy Currents, Whatcha trying to do? I'm not a physicist btw.
 
Just playing around with high voltage and noticed rf on my oscope while applying a high voltage to parallel plates... wondering what is causing it?

I know it's not just noise from a nearby source and know that it's coming from between the plates. ... also I noticed it's highest amplitude frequency is related to the distance between the plates
 
Last edited:
If you are applying a high voltage to a conductive material, you can induce a voltage across another if it's close, same reason why metal stuff next to a magnet becomes magnetized
 

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