Thickness Effects of the Metallic and the Insulating Membranes of a Cylindrical Electromagnetic Shock Wave Transducer

초록

The study was to experimentally investigate how shock wave production was related to the thickness of the metallic and the insulating membranes encompassing the solenoid of a cylindrical electromagnetic shock wave transducer. The thicknesses considered were 30, 50, 100, 150, and 200 mu m in the metallic foil, and 50, 100, 150, 200, 300, and 500 mu m in the insulator. A total of 30 shock wave transducers covering all thickness combinations of the pair of membranes were constructed and tested. The results showed that the shock wave production was maximized when the metallic foil had a particular thickness of 50 mu m and the insulator was as thin as possible. The conditions are that the inductance of the shock wave transducer is close to the lower bound of its minimum and that the current flow through the transducer is slightly smaller than its maximum.

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