专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPH04265839A ANALYZING METHOD OF MANY COMPONENTS IN SPECTROSCOPIC ANALYSIS 失效
公开(公告)号：JPH04265839A
公开(公告)日：1992-09-22
申请号：JP4886391
申请日：1991-02-21
申请人： HORIBA LTD
发明人： ADACHI MASAYUKI , YAMAGISHI YUTAKA , INOUE KO
IPC分类号： G01N21/35 , G01N21/3504
摘要： PURPOSE:To make small a matrix used for calculating the concentration of a component and to shorten the processing time by a method whereby many components contained in a sample are divided into a plurality of groups of components and, frequency ranges are formed into blocks for the spectroscopic analysis of each group of components. CONSTITUTION:A Fourier transform infrared spectrometer (FT-IR) 1 consists of an analyzing part 2 and a data processing part 3. The analyzing part 2 is constituted of an interference mechanism 8 consisting of a light source 4, a beam splitter 5, a fixed mirror 6 and a movable mirror T, a cell 9 in which a measuring sample is accommodated and to which infrared beams from the light source 4 are cast, and a detector 10. The data processing part 3 is constituted of an adding/averaging part 11, a high speed Fourier transformation part 12 and a spectrum operating part 13. Many components contained in the sample are divided into a plurality of groups of components, and the using frequency ranges are formed and restricted into blocks. The spectroscopic analysis is carried out in this manner. Since a matrix used for the operation of the concentration is made small, the operation becomes simple. Moreover, the operation can be omitted in tone frequency range of the absorption spectrum unnecessary for the calculation of the concentration, thereby shortening the operating time.

22. 发明专利

JP2002350339A METHOD FOR ANALYZING PARTICULATE MATERIAL IN EXHAUST GAS FROM ENGINE 失效
公开(公告)号：JP2002350339A
公开(公告)日：2002-12-04
申请号：JP2001156455
申请日：2001-05-25
申请人： HORIBA LTD
发明人： ASANO ICHIRO , INOUE KO , ADACHI MASAYUKI , YAMAZAKI HITOSHI
IPC分类号： G01N1/02 , F01N3/00 , G01N1/28 , G01N21/35
摘要： PROBLEM TO BE SOLVED: To provide a method for analyzing a particulate material in exhaust gas from an engine which can simply perform desired analysis and preparation for measuring in a short time. SOLUTION: A filter F is provided in a flow path 27 that the exhaust gas G from the engine or the diluted gas S flows. After the particulate material included in the exhaust gas G from the engine is collected by the filter F, a soluble organic component in the particulate material is extracted by using a solvent having an infrared absorbing region different from the soluble organic component. An absorbing spectrum of an extracted solution is measured by a spectroscopic apparatus 1. Absorbing spectrums of fuel and lubricating oil are previously collected as references. Quantities of a fuel-based soluble organic component and a lubricating oil-based soluble organic component included in the particulate material are separately determined by analyzing the absorbing spectrum of the extracted solution by quantitative analysis using a multivariate analyzing method.

23. 发明专利

JP2001124674A ON-VEHICLE ENGINE EXHAUST GAS ANALYZER 失效
公开(公告)号：JP2001124674A
公开(公告)日：2001-05-11
申请号：JP30179099
申请日：1999-10-25
申请人： HORIBA LTD
发明人： INOUE KO
IPC分类号： G01N1/22 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an on-vehicle engine exhaust gas analyzer for continuously analyzing the discharge weights of many components contained in the engine exhaust gas of a vehicle such as automobile without using any exclusive large- scaled facility. SOLUTION: A vehicle 1 is loaded with a gas analytic part 6 for measuring the concentration of exhaust gas EX flowing in the exhaust pipe 3 of an engine 2; a tracer gas injection part P1 mounted on the exhaust pipe 3 upstream from a measurement part P2 for the exhaust gas concentration to inject a tracer gas SF6 whose concentration can be measured by the gas analytic part 6; and an arithmetic processing part 7 for determining the exhaust gas flow rate Qex from the measured concentration Csf6 of the tracer gas SF6 measured by the gas analytic part 6, the injecting concentration Ct of the tracer gas SF6, and the injecting flow rate Qt of the tracer gas SF6 and continuously determining the discharge weight Wuk of a component to be measured in the exhaust gas EX from the exhaust gas flow rate Qex and the concentration Cuk of the component to be measured, which is measured simultaneously by the gas analytic part 6.

24. 发明专利

JP2000356589A METHOD FOR ELIMINATING INFLUENCE OF COEXISTING GAS IN GAS ANALYSIS 失效
公开(公告)号：JP2000356589A
公开(公告)日：2000-12-26
申请号：JP16801399
申请日：1999-06-15
申请人： HORIBA LTD
发明人： INOUE KO , TAKEDA KENJI , ISHIHARA MASAAKI
IPC分类号： G01N21/27 , G01N21/35 , G01N21/3504
摘要： PROBLEM TO BE SOLVED: To suppress the influence of span sensitivity due to the difference of base gas compositions and to eliminate the influence of a coexisting gas as much as possible by inputting difference data for the actual sample average value of base composition along with the concentration of a target constituent in a calibration gas. SOLUTION: When CO is to be measured by a Fourier Transform infrared spectrophotometer or the like, the ratio of a CO indication value (true value: 250.0 ppm) when H2 concentration in a base gas is 0% to the CO indication value at each H2 concentration is obtained as a sensitivity correction coefficient (span gas correction coefficient) Y, and the approximation cure (approximately 1-4 order equation) Y=f(X) is calculated from H2 concentration in the base gas and several data of a sensitivity correction coefficient Y and is stored at the operation part of an analyzer. Then, when for example the calibration gas is CO 250 ppm (N2 base) and the average H2 concentration in the sample gas is 48% (correction coefficient: 0.9815), 250×f(48)=250×0.9815=245.4 is obtained. Then, when a calibration curve is to be obtained in the analyzer, 245.4 ppm is used as cylinder concentration.

25. 发明专利

JPH08128948A MULTICOMPONENT SIMULTANEOUS CONTINUOUS ANALYTICAL METHOD 失效
公开(公告)号：JPH08128948A
公开(公告)日：1996-05-21
申请号：JP29238294
申请日：1994-10-31
申请人： HORIBA LTD
发明人： INOUE KO
IPC分类号： G01J3/45 , G01N21/35 , G01N21/3504
摘要： PURPOSE: To provide a multicomponent simultaneous continuous analytical method capable of accurately, simply, simultaneously, continuously analyzing in real time multicomponent containing a component which is not measured with a Fourier transform infrared photometer (FTIR analyzer). CONSTITUTION: An instruction from an analyzer 3 other than an FTIR analyzer is directly read in a computer 7 for control-data processing of the FTIR analyzer, and this instruction and the instruction of the FTIR analyzer are once stored in temporary memories 10, 11, and after the response difference is corrected, both instructions are simultaneously displayed and outputted.

26. 发明专利

JPH06300684A QUANTITATIVE METHOD FOR SPECTROCHEMICAL ANALYSIS 失效
公开(公告)号：JPH06300684A
公开(公告)日：1994-10-28
申请号：JP11404793
申请日：1993-04-15
申请人： HORIBA LTD
发明人： ADACHI MASAYUKI , INOUE KO , YAMAGISHI YUTAKA
IPC分类号： G01J3/42 , G01N21/27 , G01N21/59
摘要： PURPOSE:To accurately quantitatively calculate absorbance against an absorption not proportional to density by obtaining as calibration data relationship between the density and an absorbance sum, estimating the sum of components to be measured, and using the relationship between the density and the sum. CONSTITUTION:As calibration data, an absorption spectrum, density and an absorbance sum regarding a certain component are prepared. Then, the spectrum is calculated with a calibration matrix by a method of main component analysis PCR or partial minimum squaring method PLS by using the sum, and a quantity matrix is formed. On the other hand, relationship between the absorbance sum and the density is obtained by executing a nonlinear curve fitting process, and a relation curve between the sum and the density is obtained. Thereafter, an absorbance sum of a component to be measured is estimated from the quantity matrix and a density unknown spectrum obtained separately. The sum obtained by the estimation is substituted for a quartic equation, and an estimated density at this time is obtained. The absorption in which the absorbance is not proportional to the density is accurately quantitated by using the sum.

27. 发明专利

JPH04262238A QUANTITATIVE ANALYSIS METHOD USING SPECTROCHEMICAL ANALYSIS 失效
公开(公告)号：JPH04262238A
公开(公告)日：1992-09-17
申请号：JP4416691
申请日：1991-02-16
申请人： HORIBA LTD
发明人： INOUE KO , YAMAGISHI YUTAKA , ADACHI MASAYUKI
IPC分类号： G01N21/35
摘要： PURPOSE:To make it possible to perform the quantitative analysis of samples to be measured in a broad concentration range with the intact state of the mechanical structure of an analyzer by selecting only the wave-number points having the linearity of absorbance in a concentration range wherein measurement can be performed among absorbing spectra, and computing the concentration of the component to be measured based on the absorbance value. CONSTITUTION:When the relatively low concentration of a compound having an absorbing spectrum is analyzed, a plurality of wave-number points used for concentration computation are selected among all wave-number points (a), (b) and (c). When the slightly higher concentration is analyzed, a plurality of the points used for the computation are selected among the points (b) and (c). When the more higher concentration is measured, a plurality of the points are adequately selected only in the point (c). It is not necessary to stick to the top of the absorption peak for the wave-number point used for the concentration computation. The concentration computation can be performed by selecting only selecting the base of the absorption peak and a part without absorption. The concentration range can be arbitrarily changed, and the result having the excellent linearity is obtained. The quantitative analysis of the samples in the broad range can be readily performed without changing the constitution of the analyzer.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式