Dynamic light scattering measurement apparatus using phase modulation interference method
    2.
    发明授权
    Dynamic light scattering measurement apparatus using phase modulation interference method 有权
    动态光散射测量装置采用相位调制干扰法

    公开(公告)号:US07236250B2

    公开(公告)日:2007-06-26

    申请号:US10968331

    申请日:2004-10-20

    IPC分类号: G01B9/02

    摘要: A dynamic light scattering measurement apparatus using a phase modulation type interference method includes an optical coupler for dividing light from a low coherent light source, a converging lens for irradiating one of the divided lights to a sample 9, phase modulators for modulating the phase of the other divided lights, a spectrum measurement means for measuring a spectrum of the interference light of the phase-modulated reference light and the scattered light outgoing from the sample, and an analyzing means for measuring the dynamic light scattering of particles of the sample based on the first order spectrum corresponding to the basic frequency of the phase-modulating signal or a higher order spectrum corresponding to a frequency equal to two, three or the like times the basic frequency appearing in the interference light spectrum measured by the spectrum measurement means. An amount s/L obtained by normalizing the light path length s within the sample by the mean free path L of the particles is set to be not more than 3. Dynamic properties of a high concentration medium can be measured with high precision based on the scattered light from such medium.

    摘要翻译: 使用相位调制型干涉法的动态光散射测量装置包括用于分离来自低相干光源的光的光耦合器,用于将划分的光之一照射到样品9的会聚透镜,用于调制相位调制 其他分光,用于测量相位调制参考光的干涉光的光谱和从样本出射的散射光的光谱测量装置,以及用于基于样品的粒子测量动态光散射的分析装置 对应于相位调制信号的基本频率的第一阶频谱或与由频谱测量装置测量的干涉光谱中出现的基本频率等于二,三次等的频率相对应的较高阶频谱。 通过将样品中的光路长度s通过颗粒的平均自由程L标准化而获得的量s / L被设定为不大于3.可以基于以下方式高精度地测量高浓度介质的动态特性 这种介质的散射光。

    Dynamic light scattering measurement apparatus using phase modulation interference method
    6.
    发明申请
    Dynamic light scattering measurement apparatus using phase modulation interference method 有权
    动态光散射测量装置采用相位调制干扰法

    公开(公告)号:US20050122528A1

    公开(公告)日:2005-06-09

    申请号:US10968331

    申请日:2004-10-20

    摘要: A dynamic light scattering measurement apparatus using a phase modulation type interference method comprises an optical coupler 5 for dividing light from a low coherent light source 2, a converging lens 10 for irradiating one of the lights divided by the optical coupler 5 to a sample medium 9, phase modulators 7, 8 for modulating the phase of the other of the lights divided by the optical coupler 5, a spectrum measurement means 12 for measuring the spectrum of the interference light of the phase-modulated reference light and the scattered light outgoing from the sample medium 9, and an analyzing means for measuring the dynamic light scattering of particles of the sample medium based on at least any one of the first order spectrum corresponding to the basic frequency of the phase-modulating signal or a higher order spectrum corresponding to a frequency equal to two, three or the like times the basic frequency appearing in the interference light spectrum measured by the spectrum measurement means 12. The amount s/L obtained by normalizing the light path length s within the sample medium by the mean free path L of the particles is set to be not more than 3. Dynamic properties of a high concentration medium can be measured with high precision based on the scattered light from the high concentration medium.

    摘要翻译: 使用相位调制型干涉法的动态光散射测量装置包括用于分离来自低相干光源2的光的光耦合器5,用于将由光耦合器5分割的光中的一个照射到样品介质9的会聚透镜10 用于调制由光耦合器5分开的另一个光的相位的相位调制器7,8;用于测量相位调制参考光的干涉光的光谱的光谱测量装置12和从 样品介质9和分析装置,用于根据对应于相位调制信号的基本频率的第一级光谱或对应于相位调制信号的较高阶光谱的至少任一个来测量样品介质的粒子的动态光散射 频率等于由频谱测量所测量的干涉光谱中出现的基本频率的二次,三次或类似次数 通过将样品介质中的光路长度s通过颗粒的平均自由程L来归一化所获得的量/ s L被设定为不大于3.高浓度介质的动态特性可以用 基于来自高浓度介质的散射光的高精度。

    Induction heating cooker with constant frequency controlled inverter
    7.
    发明授权
    Induction heating cooker with constant frequency controlled inverter 失效
    感应加热炊具带恒压变频器

    公开(公告)号:US5319174A

    公开(公告)日:1994-06-07

    申请号:US573407

    申请日:1990-08-28

    IPC分类号: H05B6/12 H05B6/06

    摘要: An induction heating cooker has a rectifier (13) for producing pulsating DC current, an inverter (14) which receives the pulsating current given from the rectifier (13) and produces a high frequency output current and a load circuit (15) including an output coil (21) and a resonance capacitor (22) connected in series to each other to receive high frequency output signal from the inverter, and the variation or adjustment of output electromagnetic power is made by changing duty ratio of the high frequency output current of the inverter by giving variable duty ratio setting signals to switching elements (Qa, Qb) in the inverter 14; the frequency of the high frequency output current of the inverter 14 is fixed, and therefore, unpleasant interference sound is not generated at parallel simultaneous operation.

    摘要翻译: 感应加热烹调器具有用于产生脉动直流电流的整流器(13),接收从整流器(13)给出的脉动电流并产生高频输出电流的逆变器(14)和负载电路(15),其包括输出 线圈(21)和谐振电容器(22),它们彼此串联连接以接收来自逆变器的高频输出信号,并且通过改变输出电磁功率的高频输出电流的占空比来进行输出电磁功率的变化或调整 通过向逆变器14中的开关元件(Qa,Qb)赋予可变占空比设定信号; 逆变器14的高频输出电流的频率是固定的,因此在并行同时操作时不产生令人不快的干扰声。

    Pollen sensor and method
    10.
    发明授权
    Pollen sensor and method 失效
    花粉传感器和方法

    公开(公告)号:US07119900B2

    公开(公告)日:2006-10-10

    申请号:US10678194

    申请日:2003-10-02

    IPC分类号: G01J4/00

    摘要: A pollen sensor and method for detecting pollen which discriminates pollen particles floating in air from other particles on a real time basis. The pollen sensor includes an illumination position for generating a light beam, a first receiver for measuring the intensity (I) or (Ip) of a light beam scattered by floating particles in a detection zone, a second receiver for measuring the intensity (Is) of a polarized light beam in a direction perpendicular to light illuminated by the light beam and means for measuring the degree of polarization of the particles for distinguishing pollen particles from other particles.

    摘要翻译: 一种用于检测花粉的花粉传感器和方法,其实时地鉴别浮在空气中的花粉颗粒与其他颗粒。 花粉传感器包括用于产生光束的照明位置,用于测量由检测区域中的浮动粒子散射的光束的强度(I)或(Ip)的第一接收器,用于测量强度(Is)的第二接收器, 的偏振光束在垂直于由光束照射的光的方向上的偏振光束,以及用于测量用于区分花粉粒子与其他粒子的粒子的偏振度的装置。