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

Instrumentation Amplifier01:25

Instrumentation Amplifier

468
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
468
Characteristics of Practical Op Amps01:16

Characteristics of Practical Op Amps

474
A difference amplifier, a crucial component in numerous electronic devices, ideally amplifies only the difference-mode signal, which is the difference between two input signals. However, in practical circuits, the output voltage depends on both the differential gain and the common-mode gain.
The ratio of differential gain to the common-mode gain is defined as the common-mode rejection ratio (CMRR). This ratio quantifies the ability of operational amplifiers (op-amps) to reject common-mode...
474
Electrocardiogram01:29

Electrocardiogram

2.2K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.2K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

551
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
551
Bode Plots Construction01:24

Bode Plots Construction

685
The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):
685

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

Probing Scalar-Neutrino and Scalar-Dark-Matter Interactions with PandaX-4T.

Physical review letters·2026
Same author

Enhancement of genetic potential for soil carbon and nitrogen cycling by organic fertilizer substitution improves the ecological environment for licorice cultivation.

Frontiers in microbiology·2026
Same author

Precise ^{136}Xe Double Beta Decay Measurement in PandaX-4T with Implications on the Nuclear Matrix Elements and Majorons.

Physical review letters·2026
Same author

In Situ Atomic Arrangement and Defect Engineering of Li-Rich Cathodes for Interface Stabilization.

ACS applied materials & interfaces·2026
Same author

End-to-end multi-domain joint coding framework for 3D light field video based on viewpoint-disparity representation.

Optics express·2026
Same author

An ultrasensitive microfiber biosensor for fast detection of alpha-fetoprotein in human serum samples.

Talanta·2026

相关实验视频

Updated: Jun 16, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

3.6K

[ECG通用模式拒绝比率自动测试系统的开发]

Yongqiang Chen1, Binbin Yan1, Jun Zhang2,3

  • 1EDAN Instruments, Inc., Shenzhen, 518122.

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
|August 18, 2024
PubMed
概括

本研究引入了一种自动化系统,用于测试心电图 (ECG) 常态排斥比率 (CMRR),以满足各种医疗标准. 开发的系统稳定,可靠和自动化,确保符合ECG测试要求.

关键词:
这是一个自动化的自动化.常用模式拒绝比率是常用模式的拒绝比率.一个电脑电图 (electroencephalogram) 是一个电脑电图.噪音水平 噪音水平 噪音水平两极分化的电压.

更多相关视频

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
07:43

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

Published on: October 5, 2019

21.8K
Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

2.4K

相关实验视频

Last Updated: Jun 16, 2025

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice
06:07

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

3.6K
A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
07:43

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

Published on: October 5, 2019

21.8K
Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

2.4K

科学领域:

  • 生物医学工程 生物医学工程
  • 医疗器械测试 医疗器械测试
  • 信号处理 信号处理

背景情况:

  • 电心电图 (ECG) 设备需要严格测试常态排斥比率 (CMRR),以确保诊断准确性和患者安全.
  • 现有的测试方法可能无法全面覆盖不同ECG应用中的各种标准和特定要求.

研究的目的:

  • 设计和开发一种自动化测试系统,用于评估心电图 (ECG) 装置的常态排斥比率 (CMRR).
  • 确保系统符合各种ECG特定国际标准规定的测试要求.

主要方法:

  • 该系统集成了用于测试信号生成的硬件模块,自动控制 (包括RC网络和偏振电压控制) 和噪声级别切换.
  • 软件组件有助于自动控制,并提供交互和监控的用户界面.

主要成果:

  • 实验验证证明了该系统在运行中的稳定性和可靠性.
  • 自动化系统成功地满足了多个ECG特定标准的测试要求.
  • 该系统具有很高的自动化程度,简化了CMRR测试过程.

结论:

  • 开发的ECG CMRR自动测试系统是一个稳定,可靠和高度自动化的解决方案.
  • 该系统有效地满足各种ECG标准的严格测试要求.
  • 这种自动化方法在医疗器械质量保证中的实际应用方面显示出重大前景.