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公开(公告)号：JPS5858440A
公开(公告)日：1983-04-07
申请号：JP15660981
申请日：1981-09-30
Applicant: SHIMADZU CORP
Inventor： IWAHASHI KENJI
Abstract: PURPOSE:To fetch out alternately two wavelength light necessary for a two wavelength multi-item spectroscopic analyzing apparatus in a good SN ratio with a simple construction, by introducting the light from the spectrum face and using a spectroscope in an opposite direction. CONSTITUTION:Desired two wavelength light is outputted alternatively and selectively by a wavelength selective plate 11 provided on the spectrum face of a spectroscope and an image is formed on a SELFOC lens or an optical fiber 13 being situated in a conjugate position to the plate 11 through a camera mirror 8, a grating 10, a collimator mirror 9 and a slit 12 and then, said image is made incident to a flow cell 14 of every analyzing item. The desired two wavelength light necessary for two wavelength multi-item spectroscopic analysis is fetched out alternately in a good S/N ratio by a simple construction eliminating the need for a respective optical element such as interference filters etc. of this wavelength light.
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公开(公告)号：JPS5753644A
公开(公告)日：1982-03-30
申请号：JP12887780
申请日：1980-09-17
Applicant: Olympus Optical Co Ltd
Inventor： SAKURADA MASAHIKO , AIHARA TAKAYUKI
CPC classification number: G01N21/255
Abstract: PURPOSE:To improve precision by eliminating the effect of temperature fluctuations of interference filters upon a measurement result, by irradiating all interference filters with light from a light source all the time and by guiding light passed through a specific filter to a sample. CONSTITUTION:Light guides 22 are provided as many as interference filters 24, which are irradiated with light from a light source 21 all the time. A rotary member 25 is turned under an interference filter holding member 23 fixed in position to guide light passed through a prescribed interference filter 24 to a prism 29 through a light guide 28, and the luminous flux is changed in direction to a prescribed phodometric position to irradiate a reaction pipe 35, containing a sample liquid 34, with the luminous flux; and the light passed through the reaction pipe 35 is photodetected by a photodetector 36 and converted photoelectrically to measure the light absorbance of the sample liquid 34. Each interference filter 24 never changes in characteristics at the beginning of photometric operation, so accurate data is obtained.
Abstract translation: 目的：通过消除干扰滤波器的温度波动对测量结果的影响，通过一直从光源照射所有干涉滤光片，并将通过特定滤光片的光引导到样品，来提高精度。 构成：导光体22与干涉滤光器24一样多，这些干涉滤光器24一直被来自光源21的光照射。 旋转构件25在固定在位置的干涉滤光器保持构件23的下方转动，以将通过规定的干涉滤光器24的光引导到通过导光体28的棱镜29，并且光束在方向上改变为规定的方位位置， 照射含有样品液体34的反应管35与光束; 并且通过反应管35的光被光电检测器36光电检测，并进行光电转换，以测量样品液体34的吸光度。每个干涉滤光器24在光度测量操作开始时从不改变特性，因此获得准确的数据。
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公开(公告)号：JPS55151226A
公开(公告)日：1980-11-25
申请号：JP5914279
申请日：1979-05-16
Applicant: HITACHI LTD
Inventor： SENGOKU MASAYUKI
Abstract: PURPOSE:To improve measurement of fast response in precision by supplying light beams from two spectrometers to a sample cell at the same time, by separating the transmitted beams into spectral components again by two spectrometers and then by simultaneously detecting them by two detectors. CONSTITUTION:Light from light source 1 strikes spectrometers 2 and 8 at the same time and is separated monochromatic components of lambda1 and lambda2 in wavelength. The components of two wavelengths strike sample cell 3 at the same time, components transmitted through cell 3 are caused to strike spectrometers 15 and 16 again for spectral diffraction and their outputs are detected by striking detectors 17 and 18. Detected lambda1 and lambda2 signals, after being amplified by preamplifiers 19 and 20, have light absorptivity converted by logarithmic converters 21 and 22 respectively and difference operator 14 calculates and outputs a difference between the both to analog or digital memory scope 7, so that only absorptivity signals of two wavelengths will be recorded or stored in memory scope 7. Thus, the measurement of fast response can be improved in precision.
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Patent Agency Ranking
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公开(公告)号：JPS54145585A
公开(公告)日：1979-11-13
申请号：JP5274478
申请日：1978-05-04
Applicant: HITACHI LTD
Inventor： SENGOKU MASAYUKI
Abstract: PURPOSE:To obtain correction coefficient of high precision and improve the measuring precision, by determining the absorbancy ratio in an arithmetic unit. CONSTITUTION:Monochromatic lights lambda1, lambda2 after passing through spectroscopes 2, 3 are A/D converted 23, and are processed by the program of a memory 26 in an arithmetic unit 25 to by supplied into a display device 27 and a recorder 29. When measuring, a coexisting material B is put into a specimen cell 7, and corresponding signals lambda1, lambda2 are converted into a ratio K of respective absorbancy signals in the unit 25, and are stored 30. Next, with respect to the mixture C of the material being measured A and the coexising material B in the cell 7, the absorbancy signal is processed 25, and is multiplied by the constant k to determine the differential signal, so that the differential absorbancy of the material being measured A may be obtained. Or, when measuring the wavelength with the spectroscope 3 alone, in order to eliminate the effect of coefficient k due to the coexisting material B, the differential absorbancy spectrum is divided by the coefficient k to obtain the differential absorbancy of the material being measured A.
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公开(公告)号：JPS5463785A
公开(公告)日：1979-05-22
申请号：JP12960277
申请日：1977-10-31
Applicant: HITACHI LTD
Inventor： SAGUSA TOSHIYUKI , NOMURA YASUSHI , YABE RIYOUHEI
Abstract: PURPOSE:To obtain accurate values by correcting the measured values of samples by the use of the values of chromogen quantities obtained through measurement in the region where the samples do not have absorption in the measurement of the samples containing disturbing chromogen by a multi-item colorimetric analysis method. CONSTITUTION:For example, in analysis of samples containing chromogen of 3 components respectively indicated by standard solution spectra of chyme 20, hemolysis 22 and jaundice 24, the above region refers to the region where the intended substance does not have absorption. For example, from the difference in absorbancies of lambda20 and lambda21, lambda18 and lambda19, lambda15 and lambda16, the degree of tchyme X, the degree of hemolysis Y and the degree of jaundice Z are respectively obtained by using the formulas (1), (2), (3) (where, An-m is absorbancy difference between lambdan and lambdam; Tn-m is the unit absorbancy difference per unit of degree of specimen between lambdan and lambdam; Hn-m is the absorbancy difference per unit degree of hemolysis at lambdam; Bn-m is the absorbancy difference per unit degree of jaundice at lambdam) and from these values, the value S having been obtained through the colorimetiric analysis of the sample is corrected by the use of the formula (4) (alpha, beta, gamma are conversion coefficients), whereby the correct analytical value S is obtained.
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公开(公告)号：JPS53122474A
公开(公告)日：1978-10-25
申请号：JP3713577
申请日：1977-03-31
Applicant: SHIMADZU CORP
Inventor： IWAHASHI KENJI
Abstract: PURPOSE:To make possible selecting arbitrary two wavelengths necessary for inspection items by corresponding the spectra of the transmitted light of respective cells in the axis-of-abscissa direction of the focal plane of a spectroscope and the similar spectra as ordinary spectroscope in the axis-of-ordinate direction.
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公开(公告)号：JPS5388778A
公开(公告)日：1978-08-04
申请号：JP15428077
申请日：1977-12-20
Applicant: HEWLETT PACKARD YOKOGAWA
Inventor： RARII ERU NIIRUSEN
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