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    • 124. 发明授权
    • Method of and apparatus for measuring concentration
    • 测量浓度的方法和仪器
    • US07248905B2
    • 2007-07-24
    • US10448107
    • 2003-05-30
    • Tadahiro FukudaTakakazu YanoKenji Matsumoto
    • Tadahiro FukudaTakakazu YanoKenji Matsumoto
    • A61B5/00
    • A61B5/14558A61B5/6826A61B5/6838G01N21/21
    • An optical rotation angle of linearly polarized light is modulated to obtain modulated light. The modulated light is passed through an inspection object containing an optically active substance. The optically active substance rotates an optical rotation angle of the modulated light. An intensity of light coming out of the inspection object is measured. Variation in the optical rotation angle of the modulated light is calculated based on the measured intensity and the angle to which the linearly polarized light is modulated. A concentration of the optically active substance in the pulsing component of the inspection object is calculated based on the variation in the optical rotation angle. Thus, concentration of glucose in the blood can be calculated without harming the patient.
    • 调制线偏振光的旋光角以获得调制光。 调制光通过含有光学活性物质的检查对象。 光学活性物质旋转调制光的旋转角度。 测量从检查对象出来的光的强度。 基于测量的强度和线性偏振光被调制的角度来计算调制光的旋转角度的变化。 基于光旋转角度的变化计算检查对象的脉动成分中的光学活性物质的浓度。 因此,可以计算血液中葡萄糖的浓度而不伤害患者。
    • 129. 发明申请
    • Optical rotatory power measuring instrument
    • 旋光功率测量仪
    • US20060087653A1
    • 2006-04-27
    • US10551796
    • 2004-03-26
    • Kenji MatsumotoTakakazu YanoTadahiro FukudaShigeru Futakami
    • Kenji MatsumotoTakakazu YanoTadahiro FukudaShigeru Futakami
    • G01J4/00G02F1/00H01J40/14
    • G01N21/21
    • A linearly polarized light output unit (701) outputs a linearly polarized light. A first phase modulation unit (703) includes a first polarization axis and modulates a phase of the linearly polarized light. A second phase modulation unit (704) includes a second polarization axis orthogonal to the first polarization axis and modulates the phase of the linearly polarized light. A signal supply unit (705) supplies a modulation signal (vb) for modulating the phase of the linearly polarized light to one of the phase modulation units. The signal supply unit (705) also supplies a bias signal (Vo) to a phase modulation unit (702). A light intensity detection unit (707) detects an intensity of a light emitted from the phase modulation unit (702), to which the signal is supplied, to a sample (106) that contains an optically active material by causing a polarization plane of the light to be rotated and the light to be transmitted by the sample (106). An optical rotation angle calculation unit (708) calculates an optical rotation angle by the sample (106) based on the modulation signal (Vb) and the detected light intensity.
    • 直线偏振光输出单元(701)输出线偏振光。 第一相位调制单元(703)包括第一偏振轴并且调制线偏振光的相位。 第二相位调制单元(704)包括与第一偏振轴正交的第二偏振轴并且调制线偏振光的相位。 信号供给单元(705)将用于将线偏振光的相位调制的调制信号(vb)提供给相位调制单元之一。 信号供给单元(705)还向相位调制单元(702)提供偏置信号(Vo)。 光强度检测单元(707)通过使包含光学活性物质的样品(106)通过使所述光学活性材料的偏振面发生,从而检测从所述信号被提供的相位调制单元(702)发射的光的强度 要旋转的光和由样品(106)传播的光。 光旋转角度计算单元(708)根据调制信号(Vb)和检测到的光强度来计算采样(106)的光旋转角度。