Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Magnetic Field Of A Current Loop01:16

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
Charging Conductors By Induction01:15

Charging Conductors By Induction

7.5K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
7.5K
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

2.3K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
2.3K
Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

1.3K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
1.3K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

3.7K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
3.7K
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

3.4K
Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
3.4K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Identification of Partial Discharge Sources by Feature Extraction from a Signal Conditioning System.

Sensors (Basel, Switzerland)·2024
Same author

The Practical Application of Bio-Inspired PMA for the Detection of Partial Discharges in High Voltage Equipment.

Sensors (Basel, Switzerland)·2023
Same author

Design and Application of a Metamaterial Superstrate on a Bio-Inspired Antenna for Partial Discharge Detection through Dielectric Windows.

Sensors (Basel, Switzerland)·2019
查看所有相关文章

相关实验视频

Updated: May 10, 2025

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
07:51

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

6.8K

自主雷击探测和计数系统使用Rogowski线圈电流测量.

Arthur F Andrade1,2, Giovanny M B Galdino2,3, Ronimack T Souza2

  • 1Faculty of Engineering, Languages and Social Sciences at Seridó, Federal University of Rio Grande do Norte (UFRN), Currais Novos 59380000, RN, Brazil.

Sensors (Basel, Switzerland)
|April 26, 2025
PubMed
概括

本研究引入了用于输电线路的自主闪电计数器. 这种具有成本效益的系统使用Rogowski线圈来监测闪电活动,提高电网可靠性.

关键词:
罗戈夫斯基线圈是一个Rogowski线圈.自动化自动化自动化自动化放电计数器的使用情况闪电就是一个闪电.闪电电流测量测量方法空中的电力线路监控监控

更多相关视频

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors
06:17

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Published on: January 16, 2020

5.6K
Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo
05:26

Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo

Published on: May 26, 2023

3.2K

相关实验视频

Last Updated: May 10, 2025

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
07:51

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

6.8K
Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors
06:17

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Published on: January 16, 2020

5.6K
Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo
05:26

Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo

Published on: May 26, 2023

3.2K

科学领域:

  • 电气工程 电气工程
  • 电力系统 电力系统
  • 环境监测 环境监测

背景情况:

  • 闪电是空中输电线路停电的主要原因,影响电网可靠性.
  • 精确监测闪电活动对于减轻脆弱线路中断的情况至关重要.
  • 现有的方法可能缺乏成本效益或适合远程部署.

研究的目的:

  • 开发和验证一个自主系统来检测和分类对传输塔的闪电袭击.
  • 为监测电力基础设施上的闪电影响提供一种实用且具有成本效益的解决方案.
  • 加强工程研究的数据收集,提高电气系统的可靠性.

主要方法:

  • 使用分裂核心的罗格斯基线圈进行传输塔的非侵入性电流测量.
  • 使用一个活跃的集成电路从线圈电压信号重建电流波形.
  • 实施基于微控制器的单元,用于打击检测,记录和振幅分类.

主要成果:

  • 实验室测试证实了该系统在检测闪电冲击的特征电流脉冲方面的准确性.
  • 罗戈夫斯基线圈和集成电路在重建波形方面表现出有效的性能.
  • 目前正在进行实地测试,以评估345千伏塔的长期自主运行可靠性.

结论:

  • 开发的自主闪电计数器是远程监控的实用和经济有效的解决方案.
  • 该系统有助于加强与闪电相关的工程研究的数据采集.
  • 该系统的实施可以提高电力传输基础设施的可靠性.