Analytical method and apparatus using capillary tube
    1.
    发明授权
    Analytical method and apparatus using capillary tube 失效
    使用毛细管的分析方法和装置

    公开(公告)号:US5211829A

    公开(公告)日:1993-05-18

    申请号:US664604

    申请日:1991-03-04

    CPC分类号: G01N30/76 G01N27/44717

    摘要: The present invention is applied to an analyzer according to which a sample to be analyzed is moved through a capillary tube in liquid chromatography or capillary-zone electrophoretic method. The capillary tube has a separation zone and a detection zone. The capillary tube in the detection zone has a section in which it can vibrate and both ends of this section are fixed.Analytes of the sample introduced into the analyzer are separated from each other in the separation zone. When each of the separated analytes is led to the area irradiated with beam in the detection zone, the capillary tube in the detection zone vibrates. This vibration phenomenon is brought about by tension fluctuation of the capillary tube caused by intermittent irradiation of the detection zone with an excitation beam and absorption of the excitation beam by the analyte. Concentration of analytes in the sample can be measured by detecting amplitude of the vibration.

    摘要翻译: 本发明应用于分析器,通过液相色谱法或毛细管区电泳方法将待分析样品移动通过毛细管。 毛细管具有分离区和检测区。 检测区域中的毛细管具有能够振动的部分,并且该部分的两端固定。 在分离区中引入分析仪的样品的分析物彼此分离。 当每个分离的分析物被引导到在检测区域中用光束照射的区域时,检测区域中的毛细管管振动。 这种振动现象是由于由激发束间歇地照射检测区域而引起的毛细管的张力波动和被分析物吸收激发光束引起的。 可以通过检测振动的幅度来测量样品中分析物的浓度。

    Method and apparatus for detecting photoacoustic signal
    2.
    发明授权
    Method and apparatus for detecting photoacoustic signal 失效
    用于检测光电信号的方法和装置

    公开(公告)号:US5136172A

    公开(公告)日:1992-08-04

    申请号:US567319

    申请日:1990-08-14

    IPC分类号: G01N21/17 G01N21/88

    摘要: A method and apparatus are disclosed for detection of surface defects and internal defect information of a sample, such as a semiconductor device, using the photoacoustic effect. Operationally, an intensity-modulated laser beam is provided having a predetermined desired frequency. The intensity-modulated laser beam is focused on the sample thereby inducing said photoacoustic effect inside the sample which is detected in two-dimensional directions of the sample so as to compose a two-dimensional photoacoustic image of the excited sample. Surface and internal information of the sample is then extracted from the two-dimensional photoacoustic image and an inverse filtering factor is in turn computed on the basis of a thermal impulse response of the particular sample for compensating degradation of the resolution of the actual photoacoustic image obtained. Lastly, the computed inverse filtering factor is then applied to the detected photoacoustic image to arrive at an image having greatly improved resolution.

    Photoacoustic analyzer
    4.
    发明授权
    Photoacoustic analyzer 失效
    光声分析仪

    公开(公告)号:US4557137A

    公开(公告)日:1985-12-10

    申请号:US530061

    申请日:1983-09-07

    IPC分类号: G01N21/00 G01N21/17 G01N29/00

    CPC分类号: G01N21/1702

    摘要: A photoacoustic analyzer comprises an analyzing cell having a beam entrance window and including a cylindrical piezoelectric transducer element forming at least a part of the wall thereof, and a laser beam emitter emitting a laser beam directed toward and into the analyzing cell through the beam entrance window. In the photoacoustic analyzer, the ratio r/r.sub.o between the radius r of the inner side of the analyzing cell and the radius r.sub.o of the incident laser beam is selected to lie within the range of 1.ltoreq.r/r.sub.o .ltoreq.8.

    摘要翻译: 光声分析仪包括具有光束入口窗口的分析单元,并且包括形成其壁的至少一部分的圆柱形压电换能器元件和激光束发射器,其通过光束入口窗口发射朝向分析单元的激光束 。 在光声分析仪中,选择分析单元的内侧的半径r与入射激光束的半径r之间的比r / ro在1 / r /ro≤8的范围内 。

    Particle analyzer system
    5.
    发明授权
    Particle analyzer system 失效
    粒子分析仪系统

    公开(公告)号:US06184517B2

    公开(公告)日:2001-02-06

    申请号:US09061848

    申请日:1998-04-18

    IPC分类号: G01V800

    CPC分类号: G01N15/0205 G01N21/71

    摘要: A particle analyzer system that reduces size and cost, wherein particles are introduced into a cell, then the particles are irradiate in the cell with a laser beam, then atomic emission of the particles generated by the irradiation of the laser beam is transmitted, then a spectrum is obtained of the photo emission so transmitted, and the spectrum of the photo emission is detected and the wavelength of the laser beam is, other than the wavelength of the emission of the particles, is used to provide a filter to block the intrusion of the wavelength of the laser beam in a stage proceeding the photo emission.

    摘要翻译: 一种降低尺寸和成本的颗粒分析仪系统,其中将颗粒引入电池中,然后使用激光束将颗粒照射在电池中,然后传输由激光束照射产生的颗粒的原子发射,然后将 获得如此透射的光发射的光谱,并且检测光发射的光谱,并且除了颗粒的发射波长之外,激光束的波长被用于提供滤光器以阻止 在进行光发射的阶段中的激光束的波长。

    Thermal lens microscope device
    10.
    发明授权
    Thermal lens microscope device 失效
    热镜片显微镜装置

    公开(公告)号:US07079315B2

    公开(公告)日:2006-07-18

    申请号:US11118320

    申请日:2005-05-02

    IPC分类号: G02B21/00

    摘要: A small and portable microscope for ultramicroanalysis has an excellent spatial resolution and fixed position analyzing ability. The microscope has at least a part of an excitation light source, a part of a probe light source and a part of a thermal lens microscope optical system arranged integrally in a device body. The device body also includes an analyzing cell and substrates supporting the analyzing cell.

    摘要翻译: 用于超微量分析的小型便携式显微镜具有优异的空间分辨率和固定位置分析能力。 显微镜具有至少一部分激发光源,探针光源的一部分和一体地设置在器件主体中的热透镜显微镜光学系统的一部分。 该装置主体还包括分析单元和支撑分析单元的基板。