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    • 2. 发明授权
    • 전기 임피던스 단층촬영 방법 및 시스템
    • 电阻抗层析成像的系统和方法
    • KR100700112B1
    • 2007-03-28
    • KR1020060010629
    • 2006-02-03
    • 경희대학교 산학협력단우응제오동인서진근권오인
    • 우응제오동인서진근권오인
    • A61B5/04
    • A61B5/0536
    • A method and a system for electrical impedance tomography are provided to reduce a digital clock noise by radially and symmetrically arranging volt-meters which are connected to analog and digital mother boards. A system for electrical impedance tomography includes plural electrodes(250), a current source(230), a first board(240), plural volt-meters(260), a main controller(210), and a second board(220). The electrodes are attached to an object to be measured. The first board includes plural switches for selectively supplying currents to at least one electrode pair. The volt-meter detects a voltage on a surface of the object, removes a noise from a detected voltage, and amplifies the detected voltage. The main controller selects the electrode pair and collects an amplification ratio of the volt-meter and the detected voltage. The second board controls the current source, the first board, the volt-meters, and the main controller.
    • 提供了用于电阻抗层析成像的方法和系统,以通过径向和对称地布置连接到模拟和数字母板的电压表来减少数字时钟噪声。 电阻抗层析成像系统包括多个电极(250),电流源(230),第一板(240),多个电压表(260),主控制器(210)和第二板(220)。 电极连接到要测量的物体上。 第一板包括用于选择性地向至少一个电极对提供电流的多个开关。 电压表检测物体表面上的电压,从检测到的电压中去除噪声,并放大检测到的电压。 主控制器选择电极对并收集电压表和检测电压的放大率。 第二板控制电流源,第一板,电压表和主控制器。
    • 3. 发明授权
    • 위상차를 이용한 정현파 진폭 측정 방법 및 그 장치
    • 使用相位差测量正弦波的振幅的方法及其装置
    • KR101203041B1
    • 2012-11-21
    • KR1020110108575
    • 2011-10-24
    • 경희대학교 산학협력단
    • 백종철오동인우응제
    • G01R19/04A61B5/04G01N27/00
    • PURPOSE: A sine wave amplitude measuring method using a phase difference and a device thereof are provided to optimize multi-channel measurement composition for accurate measurement of sine wave amplitude outputted in a plurality of parts of an object at the same time. CONSTITUTION: A signal sensing unit(120) receives a sine wave signal applied from an external. A reference signal generating unit generates a reference signal. The reference signal is outputted as a sine wave having a phase difference between the sine wave signal and a known quantity and having the same period of the sine wave signal and the known quantity. The reference signal is generated as the sine wave. A first comparing unit(140) generates a synchronized reference square wave according to comparison between the reference signal and a reference level. A second comparing unit(150) generates a synchronized comparison square wave according to the comparison between the reference signal and the sine wave signal. A reference detecting unit(160) detects reference edge time corresponding to a case that the reference signal and the reference level are identical in the reference square wave. A cross detecting unit(170) detects a first cross time corresponding to the case that the sine wave signal and the reference signal are identical in the comparison square wave. An amplitude calculating unit(180) calculates an amplitude of the sine wave signal based on a period and the phase difference of the known quantity and the first cross time. [Reference numerals] (120) Signal sensing unit; (130) Phase lag unit; (160) Reference detecting unit; (170) Cross detecting unit; (180) Amplitude calculating unit
    • 目的:提供使用相位差的正弦波振幅测量方法及其装置,以优化同时在物体的多个部分中输出的正弦波振幅的精确测量的多通道测量组合。 构成:信号感测单元(120)接收从外部施加的正弦波信号。 基准信号生成部生成基准信号。 参考信号作为正弦波输出,正弦波具有正弦波信号与已知量之间的相位差,并且具有与正弦波信号和已知量相同的周期。 产生参考信号作为正弦波。 第一比较单元(140)根据参考信号和基准电平之间的比较产生同步参考方波。 第二比较单元(150)根据参考信号和正弦波信号之间的比较产生同步的比较方波。 参考检测单元(160)检测与参考方波中的参考信号和参考电平相同的情况的参考边沿时间。 交叉检测单元(170)检测与比较方波中的正弦波信号和参考信号相同的情况的第一交叉时间。 幅度计算单元(180)基于周期和已知量与第一交叉时间的相位差来计算正弦波信号的幅度。 (附图标记)(120)信号感测单元; (130)相位滞后单元; (160)参考检测单元; (170)交叉检测单元; (180)幅度计算单位
    • 10. 发明授权
    • 폐기능 검사장치 및 그 방법
    • 肺功能测试仪器和方法
    • KR101765423B1
    • 2017-08-07
    • KR1020160154142
    • 2016-11-18
    • 경희대학교 산학협력단
    • 우응제오동인
    • A61B5/091A61B5/053
    • A61B5/0536A61B5/091
    • 피험자의호흡파라미터에따른폐활량과, 흉부에서의임피던스데이터에따른흉부영상을기반으로폐기능을진단하는폐기능검사장치및 그방법에관한것으로서, 기존의폐활량계와전기임피던스단층촬영(EIT, Electrical Impedance Tomography) 방법을함께사용하여피험자의입에서측정한전체변수(global variable)와, 폐내부에서영상화한지역변수(local variable)를통합처리및 해석하여폐활량영상검사법(spirotomometry)을제안하고자한다.
    • 它涉及到一个肺功能测试装置和方法,用于肺功能的基于肺活量的胸部图像,并根据被检体的呼吸参数的胸部eseoui阻抗数据,现有的肺活量计和电阻抗断层成像(EIT,电阻抗成像的诊断 )通过使用相结合的方法掺入整个可变(全局变量),以及在受试者中)处理和分析的嘴的肺成像内部测量的本地变量(局部变量,我们提出了一种肺活量测试图像(spirotomometry)。