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Energy Stored In A Coaxial Cable01:31

Energy Stored In A Coaxial Cable

A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...

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相关实验视频

Updated: Jul 11, 2026

A Procedure for Implanting Organized Arrays of Microwires for Single-unit Recordings in Awake, Behaving Animals
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无线系统用于记录唤起的潜能.

Yutaro Oguma1, Toshi Nakajima2, Megan Elizabeth Young3

  • 1Department of Integrative Neuroscience, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; School of Medicine, University of Toyama, Toyama, Japan.

The journal of physiological sciences : JPS
|January 22, 2025
PubMed
概括

研究人员开发了一种无线系统来记录唤起的潜能,从而可以灵活地控制刺激和记录参数. 这种新的系统准确地捕获了大鼠大脑中的神经反应,证明了它在神经科学实验中的实用性.

关键词:
定制制成的 定制制成的唤起了潜在的潜力.记录和刺激系统的记录和刺激系统.无线无线无线无线无线

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Non-restraining EEG Radiotelemetry: Epidural and Deep Intracerebral Stereotaxic EEG Electrode Placement
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科学领域:

  • 神经科学是一个神经科学.
  • 生物医学工程 生物医学工程
  • 电力生理学 电力生理学

背景情况:

  • 唤起的潜在实验需要适应性和快速调整刺激和记录参数.
  • 现有的系统往往缺乏无线灵活性,阻碍实时实验控制和数据采集.

研究的目的:

  • 开发和验证一种用于电生理学实验的新型无线记录系统.
  • 通过Android应用程序实现灵活快速调整刺激和记录参数.

主要方法:

  • 设计了一个定制的三单元系统 (刺激,记录,控制).
  • 一个安卓应用程序促进了平板电脑和控制单元之间的无线通信,距离高达5米.
  • 系统的性能被评估为内部噪声,信号保真度和精确的脉冲输出时间.

主要成果:

  • 记录单元显示了低内部噪声和忠实的信号显示.
  • 刺激单元在命令时提供精确定时的脉冲输出.
  • 该系统成功地记录了大鼠牙状环中的唤起场电位,反应与刺激参数相关.

结论:

  • 开发的无线系统为电生理学记录提供了灵活和高效的解决方案.
  • 这项技术增强了控制和优化刺激和记录神经科学研究参数的能力.
  • 该系统的性能验证了其在各种唤起潜力的研究中使用的潜力.