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    Centrifugal force based microfluidic device, microfluidic system including the same, and method of determining home position of the microfluidic device
    1.
    发明授权
    Centrifugal force based microfluidic device, microfluidic system including the same, and method of determining home position of the microfluidic device 失效
    基于离心力的微流体装置，包括其的微流体系统和确定微流体装置的原位置的方法

    公开(公告)号：US07758810B2

    公开(公告)日：2010-07-20

    申请号：US11875973

    申请日：2007-10-22

    申请人： Jeong-gun Lee ,  Beom-seok Lee ,  Jong-myeon Park ,  Jung-suk Yoo

    发明人： Jeong-gun Lee ,  Beom-seok Lee ,  Jong-myeon Park ,  Jung-suk Yoo

    IPC分类号： G01N21/07 ,  G01B11/00

    CPC分类号： G01N35/00069 ,  B01L3/5027 ,  B01L2300/0654 ,  B01L2300/0803 ,  B01L2400/0409 ,  G01N35/0092 ,  G01N2035/00574

    摘要： Provided is a centrifugal force based microfluidic system including: a microfluidic device including a rotatable platform and an optical path formed to extend horizontally in a straight line from a circumference of the platform; a motor rotating so as to control the microfluidic device; a light emitting unit emitting light towards the microfluidic device; a light receiving unit detecting the light emitted from the light emitting unit; and a controller determining a home position to be the position of the microfluidic device at a point of time when the light emitted from the light emitting unit is detected by the light receiving unit, wherein the light emitted from the light emitting unit passes through the optical path to be incident on the light receiving unit only when the microfluidic device is located in a predetermined position.

    摘要翻译： 提供了一种基于离心力的微流体系统，包括：微流体装置，其包括可旋转平台和形成为从平台的圆周以直线水平延伸的光路; 旋转的马达以控制微流体装置; 向所述微流体装置发射光的发光单元; 光接收单元，检测从所述发光单元发射的光; 以及控制器，其在从所述光接收单元检测到从所述发光单元发射的光的时刻，将所述微流体装置的位置确定为所述位置，其中，从所述发光单元发射的光通过所述光 仅当微流体装置位于预定位置时入射在光接收单元上的路径。

    CENTRIFUGAL FORCE BASED MICROFLUIDIC DEVICE, MICROFLUIDIC SYSTEM INCLUDING THE SAME, AND METHOD OF DETERMINING HOME POSITION OF THE MICROFLUIDIC DEVICE
    2.
    发明申请
    CENTRIFUGAL FORCE BASED MICROFLUIDIC DEVICE, MICROFLUIDIC SYSTEM INCLUDING THE SAME, AND METHOD OF DETERMINING HOME POSITION OF THE MICROFLUIDIC DEVICE 失效
    基于离心力的微流体装置，包括其的微流体系统和确定微流体装置的位置的方法

    公开(公告)号：US20080252905A1

    公开(公告)日：2008-10-16

    申请号：US11875973

    申请日：2007-10-22

    申请人： Jeong-gun LEE ,  Beom-seok LEE ,  Jong-myeon PARK ,  Jung-suk Yoo

    发明人： Jeong-gun LEE ,  Beom-seok LEE ,  Jong-myeon PARK ,  Jung-suk Yoo

    IPC分类号： G01B11/14

    CPC分类号： G01N35/00069 ,  B01L3/5027 ,  B01L2300/0654 ,  B01L2300/0803 ,  B01L2400/0409 ,  G01N35/0092 ,  G01N2035/00574

    摘要： Provided is a centrifugal force based microfluidic system including: a microfluidic device including a rotatable platform and an optical path formed to extend horizontally in a straight line from a circumference of the platform; a motor rotating so as to control the microfluidic device; a light emitting unit emitting light towards the microfluidic device; a light receiving unit detecting the light emitted from the light emitting unit; and a controller determining a home position to be the position of the microfluidic device at a point of time when the light emitted from the light emitting unit is detected by the light receiving unit, wherein the light emitted from the light emitting unit passes through the optical path to be incident on the light receiving unit only when the microfluidic device is located in a predetermined position.

    摘要翻译： 提供了一种基于离心力的微流体系统，包括：微流体装置，其包括可旋转平台和形成为从平台的圆周以直线水平延伸的光路; 旋转的马达以控制微流体装置; 向所述微流体装置发射光的发光单元; 光接收单元，检测从所述发光单元发射的光; 以及控制器，其在从所述光接收单元检测到从所述发光单元发射的光的时刻，将所述微流体装置的位置确定为所述位置，其中，从所述发光单元发射的光通过所述光 仅当微流体装置位于预定位置时入射在光接收单元上的路径。

    OPTICAL DETECTION APPARATUS AND METHOD USING PHASE SENSITIVE DETECTION METHOD FOR DISK-TYPE MICROFLUIDIC DEVICE
    6.
    发明申请
    OPTICAL DETECTION APPARATUS AND METHOD USING PHASE SENSITIVE DETECTION METHOD FOR DISK-TYPE MICROFLUIDIC DEVICE 审中-公开
    光敏检测装置和使用相位敏感检测方法的盘式微流体装置的方法

    公开(公告)号：US20080273205A1

    公开(公告)日：2008-11-06

    申请号：US11936117

    申请日：2007-11-07

    申请人： Jeong-gun Lee ,  Jung-nam Lee ,  Yoon-kyoung Cho ,  Jung-suk Yoo

    发明人： Jeong-gun Lee ,  Jung-nam Lee ,  Yoon-kyoung Cho ,  Jung-suk Yoo

    IPC分类号： G01N21/00

    CPC分类号： G01N35/00069 ,  G01N21/07 ,  G01N21/253 ,  G01N21/64 ,  G01N21/6452 ,  G01N2201/0415 ,  G01N2201/0696

    摘要： An optical detection apparatus and method using a phase sensitive detection method for a disk-type microfluidic device are provided. The optical detection apparatus includes: a rotation driving unit stopping rotation of the microfluidic device when a detection area of the disk-type microfluidic device reaches a predetermined position; at least one light source turned on and off at a corresponding frequency to emit light to the detection area held at the predetermined position; an optical sensor disposed to face the detection area and generating an electrical signal according to intensity of incident light; and a signal processing unit receiving the electrical signal generated by the optical sensor and outputting only a signal having a same frequency as an on/off frequency of one of the at least one light source.

    摘要翻译： 提供了一种使用盘式微流体装置的相敏检测方法的光学检测装置和方法。 光学检测装置包括：当盘式微流体装置的检测区域到达预定位置时，旋转驱动单元停止微流体装置的旋转; 至少一个光源以相应的频率开启和关闭以向保持在预定位置的检测区域发光; 光传感器，其设置成面对检测区域并根据入射光的强度产生电信号; 以及信号处理单元，其接收由所述光学传感器产生的电信号，并且仅输出与所述至少一个光源中的一个光源的开/关频率具有相同频率的信号。

    Apparatus and method for measuring electrochemical impedance at high speed
    7.
    发明授权
    Apparatus and method for measuring electrochemical impedance at high speed 有权
    高速电化学阻抗测量装置及方法

    公开(公告)号：US06339334B1

    公开(公告)日：2002-01-15

    申请号：US09507460

    申请日：2000-02-22

    申请人： Su-moon Park ,  Jung-suk Yoo

    发明人： Su-moon Park ,  Jung-suk Yoo

    IPC分类号： G01N2742

    CPC分类号： G01N27/416

    摘要： An apparatus and method for measuring an electrochemical impedance at high speed. The method for measuring the electrochemical impedance of an electrolyte at high speed includes applying a direct current (DC) voltage having the reaction potential of the electrolyte to the electrolyte via a counter electrode and, after a delay, applying a signal voltage, including a DC voltage added to a differentiated or integrated Dirac-delta function voltage, to the electrolyte; computing a digital data value related only to the differentiated or integrated Dirac-delta function voltage, obtained by converting signal current flowing in a working electrode via the electrolyte into a voltage, integrating or differentiating the voltage, and Fourier transforming the result of the integration or differentiation; and obtaining changes in magnitude and phase as a function of frequency based on the Fourier transform, to compute the impedance. By investigating impedances computed at intervals upon the application of a reaction potential and upon the application of a step voltage plus the reaction potential to the electrolyte, the influence of mass transfer and electron transfer in the electrolyte on the impedance measurement can be understood.

    摘要翻译： 用于高速测量电化学阻抗的装置和方法。 用于测量电解质在高速下的电化学阻抗的方法包括通过反电极将具有电解质的反应电位的直流（DC）电压施加到电解质上，并且在延迟之后施加包括DC的电压 电压加到差分或集成的狄拉克三角函数电压; 计算仅通过将在工作电极中经由电解质流动的信号电流转换成电压，积分或微分电压而获得的微分或积分狄拉克 - 三角函数电压的数字数据值，以及对积分的结果进行傅里叶变换， 分化 并且基于傅立叶变换获得作为频率的函数的幅度和相位的变化，以计算阻抗。 通过研究在施加反应电位时间隔计算的阻抗，并且当施加步进电压加上电解质的反应电位时，可以理解电解质中的传质和电子传递对阻抗测量的影响。