一种由气体放电管 (GDT) 组成的替代高压开关,用于高功率脉冲应用
Juan Luo1, Lirun Tang1, Cong Xu1
1Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, China.
The Review of scientific instruments
|May 15, 2025
概括
一个使用两个气体排放管 (GDT) 的新型高压开关成功地在爆炸薄膜发射器系统 (EFIS) 中发挥作用. 这种GDT开关有效地取代了传统的触发火花间隙,以确保可靠的能量传输.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 物理 物理学 物理
背景情况:
- 高压开关是爆炸启动器系统 (EFIS) 中的关键组件.
- 传统的触发火花差距在EFIS应用中面临限制.
- 对金属桥进行高效的能量传输对于启动器功能至关重要.
研究的目的:
- 提出和研究一种使用两个气体排放管 (GDT) 的新型高压开关.
- 评估GDT开关的性能,以替代EFIS中触发的火花间隙.
- 分析拟议开关的导电机制和电气特性.
主要方法:
- 采用多物理分析软件来模拟开关的导电机制.
- 进行了实验研究,以确定各种应用于电压 (13002000 V) 的电气特性.
- 微芯片金属桥被用于验证开关在EFIS中的应用.
主要成果:
- GDT开关通过单个正触发脉冲成功运行,显示了两个GDT的连续故障.
- 开关电流峰值与应用于电压的线性增加,电阻在关闭后保持不变.
- 平行GDT配置对当前峰值的影响最小,验证了开关可靠性.
结论:
- 拟议的双GDT高压开关是EFIS中传统触发火花间隙的可行替代方案.
- 该开关有效触发和爆炸微芯片金属桥,证实其实际应用.
- GDT开关为高压启动器系统的能量转换提供了可靠和高效的解决方案.
相关概念视频
Van de Graaff Generator
1.6K
Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
1.6K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
431
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
431
Circuit Breaker and Fuse Selection
75
A circuit breaker is a device engineered to interrupt fault currents and sometimes reclose automatically. When a fault current is detected, the breaker separates the electrical contacts, which generates an arc. This arc is extinguished by methods such as elongation, cooling, or splitting, depending on the breaker's design. Breakers are categorized based on the voltage they operate at and the medium used for arc extinction, such as air, oil, SF6 gas, or vacuum.
In high-voltage systems,...
In high-voltage systems,...
75
Atomic Emission Spectroscopy: Overview
621
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
621
Schottky Barrier Diode
251
Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
251
Design Example: Automobile Ignition System
194
The automobile's ignition system plays a vital role by ensuring the timely ignition of the fuel-air mixture in each cylinder. This ignition is facilitated by a spark plug, which is composed of two electrodes separated by an air gap. A spark forms across this air gap when a substantial voltage is generated between the electrodes, leading to the ignition of the fuel.
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...
194


