Apparatus and breathing bag for spectrometrically measuring isotopic gas
    1.
    发明授权
    Apparatus and breathing bag for spectrometrically measuring isotopic gas 失效
    用于光谱测量同位素气体的仪器和呼吸袋

    公开(公告)号:US5964712A

    公开(公告)日:1999-10-12

    申请号:US849351

    申请日:1997-06-06

    摘要: A correction curve (FIG. 19) is prepared by plotting .sup.12 CO.sub.2 concentrations and .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratios which are determined on the basis of a calibration curve and .sup.13 CO.sub.2 and .sup.12 CO.sub.2 absorbances of gaseous samples having the same .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratio but known different .sup.12 CO.sub.2 concentrations. A gaseous test sample containing .sup.13 CO.sub.2 and .sup.12 CO.sub.2 as component gases is introduced into a cell, and spectrometrically measured. A .sup.12 CO.sub.2 concentration of the gaseous test sample is determined by way of the spectrometric measurement. A concentration ratio correction value is obtained on the basis of the correction curve and the .sup.12 CO.sub.2 concentration of the gaseous test sample thus determined. A measured .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratio is divided by the concentration ratio correction value thus obtained for correction of the .sup.13 CO.sub.2 /.sup.12 CO.sub.2 concentration ratio. Thus, the measurement accuracy of the concentration ratios of the component gases can be improved. A breath sampling bag and gas measuring system is also disclosed where each is configured such that breath inlets of the gas measuring apparatus are prevented from being respectively connected to the wrong breath introduction pipes of the breath sampling bag.

    摘要翻译: PCT No.PCT / JP96 / 02876 Sec。 371日期:1997年6月6日 102(e)日期1996年6月6日PCT提交1996年10月2日PCT公布。 公开号WO97 / 14029 日期1997年04月17日通过绘制12CO2浓度和13CO2 / 12CO2浓度比,制备校正曲线(图19),其基于校准曲线确定,并且具有13CO 2 / 12CO 2浓度的气态样品的13CO 2和12 CO 2吸光度 比例但已知不同的12CO2浓度。 将含有作为组分气体的13CO 2和12 CO 2的气态测试样品引入到电池中,并进行光谱测量。 通过光谱测量法测定气态测试样品的12CO2浓度。 基于如此确定的气体试样的校正曲线和12CO 2浓度获得浓度比校正值。 测量的13CO 2 / 12CO 2浓度比除以由此获得的用于校正13CO 2 / 12CO 2浓度比的浓度比校正值。 因此,能够提高成分气体的浓度比的测定精度。 还公开了一种呼吸取样袋和气体测量系统,其中每个呼气采样袋和气体测量系统被配置为使得气体测量装置的呼吸入口被防止分别连接到呼吸取样袋的错误的呼吸导管。

    Method for spectrometrically measuring isotopic gas and apparatus thereof
    2.
    发明授权
    Method for spectrometrically measuring isotopic gas and apparatus thereof 有权
    光谱测量同位素气体的方法及其装置

    公开(公告)号:US06274870B1

    公开(公告)日:2001-08-14

    申请号:US09303427

    申请日:1999-05-03

    IPC分类号: G01N2135

    摘要: A correction curve (FIG. 19) is prepared by plotting 12CO2 concentrations and 13CO2/12CO2 concentration ratios which are determined on the basis of a calibration curve and 13CO2 and 12CO2 absorbances of gaseous samples having the same 13CO2/12CO2 concentration ratio but known different 12CO2 concentrations. A gaseous test sample containing 13CO2 and 12CO2 as component gases is introduced into a cell, and spectrometrically measured. A 12CO2 concentration of the gaseous test sample is determined by way of the spectrometric measurement. A concentration ratio correction value is obtained on the basis of the correction curve and the 12CO2 concentration of the gaseous test sample thus determined. A measured 13CO2/12CO2 concentration ratio is divided by the concentration ratio correction value thus obtained for correction of the 13CO2/12CO2 concentration ratio. Thus, the measurement accuracy of the concentration ratios of the component gases can be improved.

    摘要翻译: 通过绘制12CO2浓度和13CO2 / 12CO2浓度比,通过绘制12CO2浓度和13CO2 / 12CO2浓度比来制备校正曲线(13CO2 / 12CO2浓度比),这些浓度比是根据13CO2 / 12CO2浓度比相同但已知不同12CO2的气态样品的校正曲线和13CO2和12CO2吸光度确定的 浓度 将含有作为组分气体的13CO 2和12 CO 2的气态测试样品引入到电池中,并进行光谱测量。 通过光谱测量法测定气态测试样品的12CO2浓度。 基于如此确定的气体试样的校正曲线和12CO 2浓度获得浓度比校正值。 测量的13CO 2 / 12CO 2浓度比除以由此获得的用于校正13CO 2 / 12CO 2浓度比的浓度比校正值。 因此,能够提高成分气体的浓度比的测定精度。

    Photon correlator
    3.
    发明授权
    Photon correlator 有权
    光子相关器

    公开(公告)号:US06885448B2

    公开(公告)日:2005-04-26

    申请号:US10276994

    申请日:2002-03-26

    摘要: A photon correlator comprises a plurality of sampling gates 11a-11e which are open during different periods of time; a plurality of memories 12a-12e each provided corresponding to each of the plurality of sampling gates 11a-11e for storing data corresponding to the number of photons; and a data processing control section for reading out the data stored in the memories 12a-12e, and performing a correlation calculation by means of software. The mechanism of the hardware comprising the sampling gates 11a-11e and memories 12a-12e enables high-speed writing of data in the memories and real-time read out of the data. In addition, the software performs correlation calculations in parallel with the above processing. Accordingly, the particle sizes and diffusion coefficient of particles in a fluid can be obtained at high speed under various conditions.

    摘要翻译: 光子相关器包括在不同时间段内打开的多个采样门11a至11e; 每个对应于多个采样门11 a-11e中的每一个提供的多个存储器12a-12e,用于存储对应于光子数量的数据; 以及数据处理控制部分,用于读出存储在存储器12a-12e中的数据,并通过软件进行相关计算。 包括采样门11 a-11 e和存储器12 a-12 e的硬件的机制使得能够高速地将数据写入存储器并实时读出数据。 此外,软件与上述处理并行执行相关计算。 因此,可以在各种条件下高速地获得流体中的颗粒的粒径和扩散系数。

    Stable isotope measurement method and apparatus by spectroscopy
    4.
    发明授权
    Stable isotope measurement method and apparatus by spectroscopy 有权
    稳定同位素测量方法和仪器通过光谱学

    公开(公告)号:US06444985B1

    公开(公告)日:2002-09-03

    申请号:US09341045

    申请日:1999-07-01

    IPC分类号: G01N2135

    CPC分类号: G01N21/3504 G01N33/0006

    摘要: A test gas sample containing carbon dioxide 13CO2 as a component gas is introduced into a cell, then the absorbance of light transmitted therethrough at a wavelength suitable for the component gas 13CO2 is determined, and the concentration of the component gas is determined on the basis of a calibration curve prepared through measurement on test gas samples each containing the component gas in a known concentration. Further, the concentration of water vapor contained in the test gas sample is measured, and the concentration of the component gas in the test gas sample is corrected in accordance with the measured water vapor concentration on the basis of a correction curve prepared through measurement on the test gas samples each containing water vapor in a known concentration (FIG. 4). With the spectrometry, the concentration ratio of the component gas can precisely be determined and corrected by measuring the moisture content in the test gas sample.

    摘要翻译: 将含有作为成分气体的二氧化碳13CO 2的试验气体样品引入电池中,然后确定以适合于成分气体13CO2的波长透射的光的吸光度,并且基于 通过测量每个含有已知浓度的组分气体的测试气体样品制备的校准曲线。 此外,测定试验气体试样中含有的水蒸气浓度,根据测定的水蒸气浓度,根据对测定气体样品的测定准备的校正曲线,对试验气体试样中的成分气体的浓度进行校正 测试每个含有已知浓度的水蒸气的气体样品(图4)。 通过光谱测定,可以通过测量测试气体样品中的含水量来精确地确定和校正组分气体的浓度比。

    Stable isotope measurement method and apparatus by spectroscopy

    公开(公告)号:US06455852B2

    公开(公告)日:2002-09-24

    申请号:US09929033

    申请日:2001-08-15

    IPC分类号: G01N2135

    CPC分类号: G01N21/3504 G01N33/0006

    摘要: A test gas sample containing carbon dioxide 13CO2 as a component gas is introduced into a cell, then the absorbance of light transmitted therethrough at a wavelength suitable for the component gas 13CO2 is determined, and the concentration of the component gas is determined on the basis of a calibration curve prepared through measurement on test gas samples each containing the component gas in a known concentration. Further, the concentration of water vapor contained in the test gas sample is measured, and the concentration of the component gas in the test gas sample is corrected in accordance with the measured water vapor concentration on the basis of a correction curve prepared through measurement on the test gas samples each containing water vapor in a known concentration (FIG. 4). With the spectrometry, the concentration ratio of the component gas can precisely be determined and corrected by measuring the moisture content in the test gas sample.

    Electrophoretic mobility measuring apparatus
    6.
    发明授权
    Electrophoretic mobility measuring apparatus 有权
    电泳迁移率测定装置

    公开(公告)号:US07449097B2

    公开(公告)日:2008-11-11

    申请号:US10784278

    申请日:2004-02-24

    IPC分类号: G01N27/453

    摘要: The present invention provides an electrophoretic mobility measuring apparatus capable of conducting measurement with high sensitivity with optical attenuation reduced by incidence of light through the electrode face. This apparatus comprises a transparent electrode 63 forming a part of a cell wall of a cell 6 capable of confining a sample, and the other electrode 62 opposite to the transparent electrode 63. A voltage is applied across these electrodes 62, 63, and light is incident upon the inside of the cell 6 through the transparent electrode 63. The scattering light which scatters from a sample S at a predetermined angle θ with respect to the incident angle, is received through the transparent electrode 63. The Doppler displacement is then measured based on the difference in frequency between the incident light and the outgoing light. The direction of the scattering vector which is the vector difference between incident and outgoing vectors, is substantially identical with that of the normal line h of the transparent electrode face.

    摘要翻译: 本发明提供一种能够以高灵敏度进行测量的电泳迁移率测量装置,通过电极面的光入射减少光衰减。 该装置包括形成能够限制样品的单元6的单元壁的一部分的透明电极63和与透明电极63相对的另一个电极62。 在这些电极62,63之间施加电压,并且光通过透明电极63入射到电池6的内部。 通过透明电极63接收从样品S以相对于入射角以预定角度θ散射的散射光。 然后基于入射光和出射光之间的频率差来测量多普勒位移。 作为入射矢量与向外矢量之间的矢量差的散射矢量的方向与透明电极面的法线h基本相同。

    Light scattering measuring probe
    7.
    发明授权
    Light scattering measuring probe 失效
    光散射测量探头

    公开(公告)号:US06750967B2

    公开(公告)日:2004-06-15

    申请号:US10258882

    申请日:2002-10-30

    IPC分类号: G01N2100

    摘要: The constitution of a probe for measuring light scattering according to this invention is as follows: a light input optical fiber 4 and a scattered light measuring optical fiber 6 for collecting and transmitting scattered light are inserted into a main body of the probe 3; the optical fiber 4 is passed through a hole provided in the probe 3 for measuring light scattering to extend outward; an end portion of each of the optical fibers 4, 6 is covered with a ferrule 66 or 67; an end of each of the ferrules 66, 67 is cut into the shape of a truncated cone such that a part of or the entire end face of the optical fiber 4 or 6 remains; and the ferrules 66, 67 are held by a support body 70 and the like in such a manner that the end faces of the optical fibers 4, 6 are disposed to be adjacent to each other at a predetermined angle with a predetermined distance in between. Accordingly, the end portions of the optical fibers can be reinforced and protected by the ferrules even when they have poor strength. In addition, cutting the ends of the ferrules into the shape of a truncated cone allows the distance between the end faces of the optical fibers to be reduced.

    摘要翻译: 根据本发明的用于测量光散射的探针的结构如下:光输入光纤4和用于收集和传播散射光的散射光测量光纤6插入到探针3的主体中; 光纤4穿过设置在探针3中的用于测量光散射的孔向外延伸; 每个光纤4,6的端部被套圈66或67覆盖; 每个套圈66,67的端部被切割为截头圆锥形,使得光纤4或6的一部分或整个端面保留; 并且套圈66,67由支撑体70等保持,使得光纤4,6的端面以预定的角度彼此相邻地以预定的角度设置在两者之间。 因此,即使光纤的强度较差,光纤的端部也可以被套圈加固和保护。 此外,将套圈的端部切割成截头圆锥体的形状允许光纤的端面之间的距离减小。

    Apparatus for measuring characteristics of optical angle
    8.
    发明授权
    Apparatus for measuring characteristics of optical angle 失效
    用于测量光学角度特性的装置

    公开(公告)号:US06636308B1

    公开(公告)日:2003-10-21

    申请号:US09554687

    申请日:2000-05-18

    IPC分类号: G01N2149

    CPC分类号: G01N21/474 G01N15/02

    摘要: The present invention relates to a light scattering intensity measuring apparatus capable of measuring, as a function of the scattering angle, the intensity of the light scattered from a sample. This apparatus comprises an ellipsoidal mirror 24 for reflecting and condensing the scattered light from a sample 23; an image-forming lens 25 disposed at the condensing point of light reflected by the ellipsoidal mirror 24 for forming, on a camera face, the image formed on the surface of the reflection mirror 24; and a camera 26 for recording the image formed by the image-forming lens 25. The scattered light in a wide angle range can be detected in a very short period of time (FIG. 1).

    摘要翻译: 光散射强度测量装置技术领域本发明涉及一种光散射强度测量装置,其能够测量从样品散射的光的散射角的函数。 该装置包括用于反射和冷凝来自样品23的散射光的椭圆面镜24; 设置在由椭圆面镜24反射的光的聚光点处的图像形成透镜25,用于在照相机面上形成形成在反射镜24的表面上的图像; 以及用于记录由图像形成透镜25形成的图像的照相机26.可以在非常短的时间段内检测广角范围内的散射光(图1)。