Loading…
Study on the plasma generation characteristics of an induction-triggered coaxial pulsed plasma thruster
At present,spark plugs are used to trigger discharge in pulsed plasma thrusters(PPT),which are known to be life-limiting components due to plasma corrosion and carbon deposition.A strong electric field could be formed in a cathode triple junction(CTJ) to achieve a trigger function under vacuum condi...
Saved in:
Published in: | Plasma science & technology 2018-02, Vol.20 (2), p.13-18 |
---|---|
Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | At present,spark plugs are used to trigger discharge in pulsed plasma thrusters(PPT),which are known to be life-limiting components due to plasma corrosion and carbon deposition.A strong electric field could be formed in a cathode triple junction(CTJ) to achieve a trigger function under vacuum conditions.We propose an induction-triggered electrode structure on the basis of the CTJ trigger principle.The induction-triggered electrode structure could increase the electric field strength of the CTJ without changing the voltage between electrodes,contributing to a reduction in the electrode breakdown voltage.Additionally,it can maintain the plasma generation effect when the breakdown voltage is reduced in the discharge experiments.The induction-triggered electrode structure could ensure an effective trigger when the ablation distance of Teflon increases,and the magnetic field produced by the discharge current could further improve the plasma density and propagation velocity.The induction-triggered coaxial PPT we propose has a simplified trigger structure,and it is an effective attempt to optimize the micro-satellite thruster. |
---|---|
ISSN: | 1009-0630 1009-0630 |
DOI: | 10.1088/2058-6272/aa8a5e |