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相关概念视频

Bode Plots Construction01:24

Bode Plots Construction

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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):
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Computed Tomography01:10

Computed Tomography

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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相关实验视频

Updated: Jul 23, 2025

Monitoring Lung Function with Electrical Impedance Tomography in the Intensive Care Unit
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Monitoring Lung Function with Electrical Impedance Tomography in the Intensive Care Unit

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ACT5 电阻断层扫描系统

Omid Rajabi Shishvan, Ahmed Abdelwahab, Nilton Barbosa da Rosa

    IEEE transactions on bio-medical engineering
    |July 17, 2023
    PubMed
    概括
    此摘要是机器生成的。

    新的自适应电流断层扫描仪5 (ACT5) 系统提供实时电阻断层扫描 (EIT) 图像,具有高度灵活性. 这种便携式EIT系统为人类受试者研究提供高质量的导电性和易感性图像.

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    科学领域:

    • 生物医学工程 生物医学工程
    • 医疗成像医学成像
    • 电气工程 电气工程

    背景情况:

    • 电阻断层扫描 (EIT) 是一种非侵入性成像技术.
    • 实时成像和灵活的当前应用对于先进的EIT应用至关重要.

    研究的目的:

    • 介绍适应电流断层仪5 (ACT5),这是一个新的32电极EIT系统.
    • 详细介绍系统的硬件和软件设计,用于先进的EIT成像.

    主要方法:

    • 开发了一种32个电极应用电流的EIT系统 (ACT5).
    • 实现了可编程模式和频率的自适应电流源 (5kHz500kHz).
    • 集成实时ECG监控和安全功能.

    主要成果:

    • 在每秒27的速度实现实时导电性和易感性成像.
    • 用坦克幽灵和人类实验对象证明了系统性能.
    • 获得了脉动性输液和心电图痕迹的实时图像.

    结论:

    • ACT5提供了便携性,高信号噪声比,以及灵活的电流控制.
    • 该系统有助于在临床上轻松获取有用的人体受试者数据.
    • ACT5提升了实时EIT成像的能力.