Cylindrical ferroelectric pulse generator
A technology of pulse generators and ferroelectrics, applied in the direction of electric pulse generator circuits, etc., can solve the problem of increasing the difficulty and volume of ferroelectric pulse generators, increasing the area of planar shock wave generators and the amount of explosives, and restricting ferroelectric To meet the needs of the body pulse generator and other issues, to achieve the effect of light weight, small volume, simple and compact structure
Inactive Publication Date: 2012-09-19
XI AN JIAOTONG UNIV
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Problems solved by technology
However, with the increase in output power requirements, the area of the planar shock wave generator and the amount of explosives required increase, which increases the difficulty and volume of the ferroelectric pulse generator, and restricts the use of the ferroelectric pulse generator.
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[0024] The present invention will be further described below in conjunction with the accompanying drawings.
[0025] figure 1 It is the schematic diagram of the working circuit of the cylindrical ferroelectric pulse generator of the present invention. The electric detonator receives the control signal to detonate the shock wave generator, and the shock wave generator generates shock waves to act on the ferroelectric ceramic 1 . The ferroelectric ceramic 1 undergoes a phase change to release the stored electric polarization energy, and outputs a high-power electric pulse in the external circuit load 2 .
[0026] Fig. 2(a) is a side view of the ferroelectric ceramics with metal electrodes on both ends of the pulse generator of the present invention. The direction of the arrow is the direction of shock wave propagation.
[0027] Fig. 2(b) is a cross-sectional view of the ferroelectric ceramics with metal electrodes on both ends of the pulse generator of the present invention. ...
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The invention discloses a method for designing and manufacturing a cylindrical ferroelectric pulse generator. The cylindrical ferroelectric pulse generator comprises a cylindrical ferroelectric ceramic, a cylindrical shock wave generator and a shock wave and a high-voltage protection insulating layer. The special ferroelectric ceramic with pressure-induced phase transition is manufactured to be cylindrical, and the inner wall and the outer wall or end faces of the cylindrical ferroelectric ceramic are connected with an external circuit load by metal electrode faces through metal leads. The cylindrical ferroelectric pulse generator has the advantages that the cylindrical ferroelectric pulse generator can serve as an independent power source for self-generation without external power supply, is simple and compact in structure, small in size and light in weight, serves as a miniaturized pulse power source and is applicable to usage occasions with limited sizes and weights, high current or high voltage with different pulse widths can be generated according to usage requirements, and the generator is used as a high-power current source or voltage source.
Description
Technical field: [0001] The invention belongs to the technical field of pulse power, and in particular relates to a cylindrical ferroelectric pulse generator which uses explosion shock waves to act on ferroelectric ceramics to generate electric pulses. Background technique: [0002] The pulse power supply can quickly release the limited electric energy in a very short time, thus generating a high-power electric pulse. Pulsed power supplies have important applications in technical fields such as particle accelerators, high-energy plasmas, high-power electromagnetic pulses, and pulsed laser generators. [0003] There is a kind of special ferroelectric material, which can transform the ferroelectric phase into antiferroelectric phase or paraelectric phase by applying pressure, so that the material can quickly release the stored electric polarization energy to generate high-power electric pulses. According to the pressure-induced phase transition characteristics of special ferr...
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IPC IPC(8): H03K3/02
Inventor 冯玉军
Owner XI AN JIAOTONG UNIV