相关实验视频
Updated: May 28, 2025

10:00
Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
12.8K
基于前置电路和磁叠加的高压脉冲发生器的混合磁性重置设计
Jinlong Guo1, Yajun Zhao1,2, Luhao Qi1
1The School of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China.
The Review of scientific instruments
|February 14, 2025
概括
这项研究介绍了一种改进的脉冲发生器,用于高压应用. 这种新的设计提高了效率和输出控制,使用磁叠加和双重设置方法.
科学领域:
- 电气工程 电气工程
- 脉冲动力系统 脉冲动力系统
背景情况:
- 脉冲动力技术在环境治理,生物医学和食品加工等多个领域至关重要.
- 现有的脉冲发生器在输出控制和效率方面存在局限性.
研究的目的:
- 提出一种具有增强高压输出能力的新型脉冲发生器设计.
- 为了提高脉冲宽度调节性和系统效率.
主要方法:
- 利用前置拓和磁叠加来产生高压.
- 实现了电阻-电容-二极管 (RCD) 和磁性重置的第三个线圈,优化了线圈结构和转.
- 通过模拟和实验分析验证了工作原理.
主要成果:
- 在更大范围 (2-5μs) 中实现可调节的脉冲宽度.
- 在开关上限制电压应力,大约是充电电压的两倍.
- 演示了一台20级脉冲发生器,产生10千伏脉冲.
- 展示了电压和电流易于扩展的潜力.
结论:
- 拟议的脉冲发生器设计提供了更好的效率和输出控制.
- 双磁重置方法有效吸收输出声,并限制电压应力.
- 该设计可扩展,以满足更高的电压和电流要求.
相关概念视频
Energy In A Magnetic Field
2.2K
If a magnetic field is sustained, there must be a current in a closed circuit or loop, implying some energy has been spent in creating the field. If this energy is not dissipated via the circuit's resistance, it is stored in the field.
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
2.2K
DC Generator
654
An alternator converts mechanical energy into electrical energy that varies sinusoidally, resulting in AC current. Meanwhile, a DC generator converts mechanical energy into electrical energy, which are DC pulses with the same polarity. The construction of a DC generator is similar to that of an alternator, except that the pair of slip rings is replaced by a single split ring, also called a commutator. The commutator functions like a periodic rotary switch; it changes the contacts with the...
654
Force On A Current Loop In A Magnetic Field
3.2K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process,...
3.2K
Faraday Disk Dynamo
2.0K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
2.0K
Motional Emf
3.1K
Magnetic flux depends on three factors: the strength of the magnetic field, the area through which the field lines pass, and the field's orientation with respect to the surface area. If any of these quantities vary, a corresponding variation in magnetic flux occurs. If the area through which the magnetic field lines are passing changes, then the magnetic flux also changes. This change in the area can be of two types: the flux through the rectangular loop increases as it moves into the...
3.1K
Magnetic Field Of A Current Loop
4.3K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
4.3K

