Testing system and method for ultrahigh sound velocity two-dimensional plasma sheath
A plasma and ultra-high speed of sound technology, applied in the field of plasma sheath, can solve the problems of not many demonstration and verification systems, few experimental test verifications, etc., and achieve the effect of high test efficiency and low test cost
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[0034] The invention provides a hypersonic two-dimensional plasma sheath testing system, which includes a vector network analyzer, a turntable system, an antenna, a plasma generator and a control system, and a plasma density diagnosis system.
[0035] The simulation results of the supersonic plasma sheath are as follows figure 1 Shown. The electron density of the plasma sheath has a more complicated distribution form, the highest in the stagnation area in the front, and the density decreases with the axial and radial directions of the fuselage. The present invention uses a blunt cone plasma generator to simulate the complex distribution of the ultra-high sound velocity plasma sheath. The plasma generator is in a closed cylindrical glass cavity (such as a fluorescent tube) and uses low-pressure mercury vapor discharge to generate a specific concentration plasma. Compared with other methods of generating plasma, the method of generating plasma by low-pressure mercury vapor dischar...
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