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公开(公告)号：US4781456A
公开(公告)日：1988-11-01
申请号：US76212
申请日：1987-07-22
Applicant: Taro Nogami
Inventor： Taro Nogami
CPC classification number: G01J3/427 , G01J1/1626 , G01N2021/3155
Abstract: An absorption photometer for measuring the absorption by conducting the light to a thin flow cell in which a liquid sample flows, wherein the sample light for measuring the absorption peak is superimposed on the reference light selected from the transparent (window) range of the liquid and the absorbance is detected by separating the sample light and reference light after transmission of the flow cell. Changes in the light path conditions can be monitored accurately, and therefore high-accuracy measurement immune to noises is made possible even using an elongated flow cell.
Abstract translation: 一种吸收光度计，用于通过将光传导到液体样品流动的薄流通池来测量吸收，其中用于测量吸收峰的样品光重叠在从液体的透明（窗）范围中选择的参考光上， 通过在流通池传输之后分离样品光和参考光来检测吸光度。 可以准确地监视光路条件的变化，因此即使使用细长的流动池也可以实现免受噪声的高精度测量。
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72.发明授权Optical process for determining the endpoint of a process via analog multiplication of photocell signals 失效用于通过光电池信号的模拟乘法确定过程的端点的光学过程
公开(公告)号：US4720628A
公开(公告)日：1988-01-19
申请号：US923367
申请日：1986-10-27
Applicant: Herbert G. Drake, Jr.
Inventor： Herbert G. Drake, Jr.
CPC classification number: H01J37/32935 , G01J1/1626 , G01J2001/4406 , G01J3/427 , G01N2201/1222 , G01N2201/126
Abstract: An improved optical endpoint detector is disclosed in which two photocells are used in conjunction with analog multipliers and variable voltage sources, all under microprocessor control. The combination enables one to measure the ratio of intensity of different emission lines, as well as their individual outputs and alternative process monitoring signals.
Abstract translation: 公开了一种改进的光学端点检测器，其中两个光电管与模拟乘法器和可变电压源结合使用，全部在微处理器控制下。 该组合使得能够测量不同发射线的强度比，以及它们的各个输出和替代过程监测信号。
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73.发明授权
公开(公告)号：US4645341A
公开(公告)日：1987-02-24
申请号：US604939
申请日：1984-04-27
Applicant: Masataka Koga , Masatoshi Kitagawa , Konosuke Oishi
Inventor： Masataka Koga , Masatoshi Kitagawa , Konosuke Oishi
CPC classification number: G01N21/3103 , G01J2003/4275 , G01N2021/3111 , G01N21/74
Abstract: A double polarized light beam spectrophotometer of a light-source modulation type. A modulated light beam emitted by a light source is conducted through specimen atom vapor generated by a graphite atomizer. Wavelength of light undergone atom absorption is selected and spatially separated into a pair of linearly polarized light beams perpendicular to each other. The pair of the linearly polarized light beams separated are alternately passed through a chopper and received by a photoelectric conversion device to be converted into electric signals which are utilized for determining atomic absorption of the specimen. The phase of modulation of light radiated from the light source is synchronized with phase of a current supplied to the graphite atomizer for heating thereof and the switching timing of the chopper.
Abstract translation: 一种光源调制型双偏振光束分光光度计。 由光源发射的调制光束通过由石墨雾化器产生的试样原子蒸气进行。 选择原子吸收的光的波长并在空间上分离为彼此垂直的一对线性偏振光束。 分离出的一对线偏振光交替地通过斩波器并由光电转换装置接收，以转换成用于确定样品的原子吸收的电信号。 从光源辐射的光的调制相位与提供给石墨雾化器的电流的相位同步，以加热它们以及斩波器的切换时序。
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公开(公告)号：US4340307A
公开(公告)日：1982-07-20
申请号：US166654
申请日：1980-07-07
Applicant: Allen M. Diamond , Richard D. Ratz
Inventor： Allen M. Diamond , Richard D. Ratz
CPC classification number: G01J3/427
Abstract: An improved bichromatic or polychromatic spectrophotometer comprising means enabling the user to electronically select which wavelength of a preselected pair of wavelengths shall serve as a "sample" wavelength, with the other then serving as a "reference" wavelength.
Abstract translation: 一种改进的双色或多色分光光度计，其包括使得用户能够电选择预选波长对的哪个波长将用作“样品”波长的装置，而另一个则用作“参考”波长。
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公开(公告)号：US4267844A
公开(公告)日：1981-05-19
申请号：US35230
申请日：1979-05-02
Applicant: Akio Yamanishi
Inventor： Akio Yamanishi
CPC classification number: G01N21/314 , A61B5/0059 , A61B5/443
Abstract: An electro-optical medical instrument is provided for measuring the presence of bilirubin in skin tissue. The instrument is preferably hand-held and self-contained and utilizes a source of flash light to provide sufficient energy in the desired wavelength spectrums. The medical instrument can be automatically activated at a predetermined pressure against a patient's skin to provide a pair of measurement electrical signals. These electrical signals can be processed to provide an output signal representative of the bilirubin value which can be conveniently displayed.
Abstract translation: 提供一种用于测量皮肤组织中胆红素存在的电光医学仪器。 该仪器优选是手持式和独立式的，并且利用闪光源来在期望的波长光谱中提供足够的能量。 医疗器械可以以预定的压力自动地激活患者的皮肤，以提供一对测量电信号。 可以对这些电信号进行处理，以提供表示可方便显示的胆红素值的输出信号。
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Patent Agency Ranking
公开(公告)号：US4205913A
公开(公告)日：1980-06-03
申请号：US917797
申请日：1978-06-22
Applicant: Wolfgang Ehrfeld , Gunther Krieg
Inventor： Wolfgang Ehrfeld , Gunther Krieg
IPC: G01J3/427 , G01N21/01 , G01N21/3504 , G01N21/61 , G01N21/24
CPC classification number: G01N21/3504 , G01N2201/1215
Abstract: For determining the partial pressure and concentration of a measuring gas which is in mixture with at least one additional gas according to an optical absorption technique, in which a beam of light having a predetermined intensity and alternatingly and cyclically having a first spectral distribution in which the light intensity will be reduced by passage through the measuring gas and a second spectral distribution in which the light intensity will not be reduced by passage through the measuring gas, is passed through such a mixture and its radiation intensity after passage through the mixture is measured in a radiation detector having an active element which is heated by the radiation and which produces an output representative of its degree of heating and composed of alternating measuring signal segments, resulting, respectively, from light having the first and the second spectral distribution, and adjacent signals segments are processed in order to compensate for various interference effects, the detector output is delivered to an input amplifier having a large signal to noise ratio, and signal inaccuracies due to superimposition of each signal segment portion produced by heating of the active element on a component representing the cooling behavior which the element would experience after the preceding heating period if further heating did not occur are compensated by integrating, in an integration member, successive portions of the detector output with respect to an integration base which has a fixed value relative to the detector output value corresponding to a constant active element temperature.
Abstract translation: 为了确定与根据光学吸收技术与至少一种附加气体混合的测量气体的分压和浓度，其中具有预定强度并交替且循环地具有第一光谱分布的光束，其中 通过测量气体的光强度将被降低，而通过测量气体不会减小光强度的第二光谱分布通过这种混合物，并且在通过混合物之后测量其辐射强度 具有有源元件的放射线检测器，该有源元件被辐射加热并且产生表示其加热程度的输出并由交替的测量信号段组成，分别由具有第一和第二光谱分布的光以及相邻信号 处理段以便补偿各种干扰 检测器输出被传送到具有大的信噪比的输入放大器，以及由于通过加热有源元件而产生的每个信号段部分叠加在表示该元件将经历的冷却行为的部件上的信号不准确 如果进一步加热没有发生，则前一个加热周期通过在积分元件中积分检测器输出相对于积分基座的连续部分来补偿，该积分基座相对于对应于恒定有效元件温度的检测器输出值具有固定值 。
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公开(公告)号：US4017191A
公开(公告)日：1977-04-12
申请号：US588750
申请日：1975-06-20
Applicant: Konrad Bunge
Inventor： Konrad Bunge
CPC classification number: G01J3/433 , G01J3/427 , G01N21/255 , G01N21/314 , G01J2003/1234
Abstract: The two-beam photometer is suitable for extinction measurement on weakly-absorbent samples. The principle of measurement is based on a wavelength selection in either the comparison beam and the measuring beam. In the beam configuration measuring and comparison beam are coincident in space and follow each other periodically. The wavelength ranges in measuring beam and comparison beam is selected by a graded interference filter which is arranged perpendicular to the optical axis and rotatable about this axis. In the zone of the graded interference filter the path of the beam is formed by two narrowly limited beams symmetrically to the optical axis. Both beams are produced preferably by two light sources whose distance may be varied in a direction perpendicular to the optical axis while the symmetry with respect to the optical axis is maintained.
Abstract translation: 双光束光度计适用于弱吸收样品的消光测量。 测量原理基于比较光束和测量光束中的波长选择。 在光束配置中，测量和比较光束在空间中重合并且周期性地彼此跟随。 测量光束和比较光束中的波长范围由渐变干涉滤光片选择，该滤光片垂直于光轴布置并可围绕该轴线旋转。 在渐变干涉滤光片的区域中，光束的路径由对称于光轴的两个狭窄受限的光束形成。 两个光束优选地由两个光源产生，其两个光源的距离可以在垂直于光轴的方向上变化，同时保持相对于光轴的对称性。
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公开(公告)号：US3927944A
公开(公告)日：1975-12-23
申请号：US42573273
申请日：1973-12-18
Applicant: SHIMADZU CORP
Inventor： IWAHASHI KENJI , YAMAMOTO HIROSHI
CPC classification number: G01J3/427
Abstract: A double-beam spectrophotometer which can be used for dual-wavelength measurement and provide two substantially equivalent beams and a third beam of a different wavelength which advances along the same path as one of the two beams and alternately therewith. The optical elements employed are so arranged that the beams have a sharply defined, very narrow cross sectional area at the chopper having a number of chopping teeth so that the chopping speed can be increased without decreasing the efficiency in the use of the energy of the output signal of the detector. The cells may be placed at different places most suitable for measurement depending upon the kind and/or concentration of the sample to be measured.
Abstract translation: 一种双光束分光光度计，其可用于双波长测量，并提供两个基本相等的光束和不同波长的第三光束，其沿与两个光束之一交替的相同路径前进。 采用的光学元件被布置成使得光束在切割器处具有清晰限定的非常窄的横截面积，其具有多个切割齿，使得可以增加斩波速度而不降低使用输出能量的效率 检测器的信号。 细胞可以放置在最适合于测量的不同地方，这取决于待测样品的种类和/或浓度。
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公开(公告)号：US3877812A
公开(公告)日：1975-04-15
申请号：US32824073
申请日：1973-01-31
Applicant: WILKS SCIENTIFIC CORP
Inventor： THOMPSON DUANE T
CPC classification number: G01J3/02 , G01J3/0232 , G01J2003/1213 , G01N21/314
Abstract: There is disclosed a multiple wavelength infrared spectrometer. It includes an optical chopper and a pendulum-like filter carrier which inserts a plurality of filters sequentially into the radiation beam. Filter changes occur during an opaque period of the chopper and each filter remains in place for a predetermined number of radiation pulses. The radiation passes through the sample and onto a detector which produces an electrical signal. An electronic circuit operates upon the signal so produced to provide an output proportional to sample absorbance.
Abstract translation: 公开了一种多波长红外光谱仪。 它包括一个光斩波器和一个将多个滤波器顺序插入到辐射束中的摆式滤波器载体。 在斩波器的不透明时段期间发生滤波器变化，并且每个滤波器保持在预定数量的辐射脉冲的适当位置。 辐射通过样品并进入产生电信号的检测器。 电子电路根据所产生的信号进行操作，以提供与样品吸光度成比例的输出。
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