公开(公告)号：JPS63158431A

公开(公告)日：1988-07-01

申请号：JP30726986

申请日：1986-12-22

Applicant: SHIMADZU CORP

Inventor： TSUNASAWA YOSHIO ,  FUKUMA TOSHIAKI

IPC: G01J3/10 ,  G01J3/42 ,  G01N21/27

Abstract: PURPOSE:To reduce the power consumption of a light source and the size of an instrument by intermittently lighting the light source and correcting a deterioration in the stability of the light source due to intermittent lighting. CONSTITUTION:A light source 2 is repeatedly lighted at a prescribed period and controlled such that a lighting period is shorter than an unlit period. Aside from specimen light flux 6 formed by light from the light source 2 passing a specimen measuring position, a light path for monitor light flux 14 is provided and, as detectors, a specimen light flux detector 22 and a monitor light flux detector 24 are provided. A signal processor 30 takes in detection outputs on the sides of the specimen light flux and the monitor light flux for the same period in synchronism with a period for which the light source 2 is lighted, the ratio of the detection output on the former side to that on the latter side is calculated with the detection output on the latter side as a reference and change in the light amount of the light source 2 is corrected.

公开(公告)号：JPS6388412A

公开(公告)日：1988-04-19

申请号：JP23406486

申请日：1986-09-30

Applicant: SHIMADZU CORP

Inventor： TSUNASAWA YOSHIO

IPC: G01J1/42 ,  G01J1/16 ,  G01J1/44 ,  G01N21/01 ,  G01N21/27

Abstract: PURPOSE:To obtain an apparatus with an automatically compensating function for variations in a light source, by making a part of light incident or a sample come into a silicon photocell for monitoring to apply an output thereof to a photoelectric multiplier tube through an input conversion means. CONSTITUTION:A half-mirro H is inserted into an optical path of an incident light into a sample S to make a part of an incident light to the sample come into a silicon photocell 1. An input conversion circuit 2 for converting an output of the cell 1 comprises a logarithmic converter L, constant-rate multiplier M and an adder Ad. An output (v) of the circuit 2 is applied to a circuit 3 which generates a generative high voltage proportional to the input voltage and the voltage V is applied to a dinode resistance R of a photoelectric multiplier tube P to turn an output characteristic of the circuit 2 to an inverse function form of an applied voltage sensitivity characteristic function of the multiplier tube P with respect to the inverse number of an input. Thus, a sample incident light is monitored 1 to control the photometry sensitivity on the side of the sample S thereby enabling suppression of changes in the measurement output due to the variations in the light source.

公开(公告)号：JPS6385415A

公开(公告)日：1988-04-15

申请号：JP23391586

申请日：1986-09-30

Applicant: SHIMADZU CORP

Inventor： TSUNASAWA YOSHIO

IPC: G01J3/08 ,  G01J3/42 ,  G01N21/25

Abstract: PURPOSE:To speedily measure many samples by providing plural measurement cells, irradiating those measurement cells with measurement light in order by switching, and sampling transmitted light beams from the respective measurement cells in synchronism with said switching. CONSTITUTION:Samples to be measured are put in the measurement cells 4-1-4-7, and the measurement light from a photospectroscope 8 is made incident on the respective cells through a rotary mirror 12 repeatedly on a time division. Light beams transmitted through the measurement cells are reflected by a light guide mirror 18 and guided to a photomultiplier tube 16. The output signal of the multiplier tube 16 is amplified by a preamplifier 22 and then sampled by a switch 26 synchronized with the switching timing of said irradiation light. Those sampled signals are converted into digital signals, which are processed as data. Consequently, the spectrophotometer which measures many samples substantially at the same time is realized.

公开(公告)号：JPS6128292B2

公开(公告)日：1986-06-30

申请号：JP2592880

申请日：1980-02-29

Applicant: Shimadzu Corp

Inventor： TSUNASAWA YOSHIO ,  KURITA TAKASHI ,  MAKABE HIDEKI

IPC: G01N21/27 ,  G01N21/47

CPC classification number: G01N21/474

公开(公告)号：JPS5946332B2

公开(公告)日：1984-11-12

申请号：JP3644776

申请日：1976-03-31

Applicant: Shimadzu Corp

Inventor： TSUNASAWA YOSHIO

IPC: G01J3/04

CPC classification number: G01J3/02 ,  G01J3/0229 ,  G01J3/0262 ,  G01J3/04

公开(公告)号：JPS5844969B1

公开(公告)日：1983-10-06

申请号：JP21199982

申请日：1982-12-02

Applicant: SHIMADZU CORP

Inventor： TSUNASAWA YOSHIO ,  INOE MASAAKI

IPC: G01J3/42 ,  G01J3/10

公开(公告)号：JPS5759126A

公开(公告)日：1982-04-09

申请号：JP13465480

申请日：1980-09-27

Applicant: Shimadzu Corp

Inventor： TSUNASAWA YOSHIO ,  NISHIMURA TAKASHI ,  TAIRA RIKUO

IPC: G01J3/427 ,  G01J3/42 ,  G01N21/31

CPC classification number: G01N21/314

Abstract: PURPOSE:To make the quantitative analysis of an intended material always possible by setting the three wavelengths corresponding to the three points of intersections of an absorption spectral curve of disturbing materials and a straight line, and performing prescribed constant operation and prescribed arithmetic processing of the operated constant and actually measured absorbance. CONSTITUTION:The three wavelengths corresponding to the three points of intersection of an absorption spectral curve B of disturbing materials and an arbitrary straight line (l) are set in a wavelength setter 1 by a pulse motor or the like responding to the operation of ten-keys or the like, and detectors, lambda1, lambda2, lambda3 are adjusted as prescribed. At the same time, the operation in accordance with the equationIis accomplished by a K calculator 2, whereby a constant K is determined. Thence, the operation in accordance with the equation II is accomplished in an arithmetic circuit 3 in accordance with the actually measured absorbances C1-C3 at the wavelengths lambda1-lambda3 of the mixed samples of the disturbing materials and an intended material, whereby the count value F corresponding to the determination of the intended material is determined. Hence, it is possible to keep the set wavelengths within a wavelength variable range in the case when the peak values of the absorption spectral curves A, B of the intended material and the disturbing material are spaced, thus the quantitative analysis of the intended material is accomplished always surely.

Abstract translation: 目的：通过设置与干扰材料的吸收光谱曲线和直线的三个交点的三个波长相对应的三个波长，可以对目的材料进行定量分析，并执行规定的常数运算和运算的规定的运算处理 常数和实际测量的吸光度。 构成：对应于干扰材料的吸收光谱曲线B与任意直线（l）的三个交点的三个波长通过脉冲电动机等设置在波长设定器1中， 键等，并且按规定调整检测器，λ1，λ2，λ3。 同时，根据等式的操作由K计算器2完成，由此确定常数K。 因此，根据等式II的操作是根据实际测量的干扰材料和预期材料的混合样品的λ1-λ3的波长的吸光度C1-C3在运算电路3中完成的，由此计数值 确定对应于预期材料的确定的F。 因此，在所要求的材料和干扰材料的吸收光谱曲线A，B的峰值间隔开的情况下，可以将设定的波长保持在波长可变范围内，因此，预期材料的定量分析是 一定要完成。

公开(公告)号：JPS5756725A

公开(公告)日：1982-04-05

申请号：JP13195580

申请日：1980-09-22

Applicant: Shimadzu Corp

Inventor： TSUNASAWA YOSHIO ,  TAIRA RIKUO ,  NISHIMURA TAKASHI ,  IWAHASHI KENJI

IPC: G01J3/12 ,  G01J3/18

CPC classification number: G01J3/18

Abstract: PURPOSE:To make construction simple by disposing image-formable light dispersing elements between the incident slit of a main spectroscope and a light source in constituting double monochromators intended for decreasing mainly the level of stray light. CONSTITUTION:Light of a tungsten lamp W and a heavy dydrogen lamp D2 is made incident via an optical path changing mirror C to a concave diffraction grating G1. The width of the light emitting part of the lamp W is about 1.5mm., and the diameter of the light emitting part of the lamp D2 is also about 2mm.. The grating G1 is turned cooperatively with the diffraction grating G2 of a main spectroscope (m) and forms the wavelength dispersed light source image on a slit S2 in accordance with the wavelength scanning of the spectroscope (m). The light of the slit S2 is made incident to the spectroscope (m), and is emitted from a slit S3 via a collimator mirror M1, the grating G2 and a telemeter mirror M2. Apertures A1, A2 are disposed to the front faces of the lamps W, D2 to shut off unnecessary scattered light, whereby the level of stray light is improved. If the grating G1 is used as a simple condensing mirror, the device acts as a single monochromator.

Abstract translation: 目的：通过在主分光器的入射缝隙和光源之间设置可成像的光分散元件来构造简单，构成用于主要降低杂散光的双重单色器。 构成：通过光路改变镜C将钨丝灯W和重型二氧化碳灯D2的光入射到凹面衍射光栅G1。 灯W的发光部分的宽度为约1.5mm，灯D2的发光部分的直径也为约2mm。光栅G1与主分光镜的衍射光栅G2协作地转动 （m），并根据分光器（m）的波长扫描在狭缝S2上形成波长分散光源图像。 狭缝S2的光入射到分光器（m），并且经由准直镜M1，光栅G2和远程计镜M2从狭缝S3射出。 孔A1，A2设置在灯W，D2的前表面，以切断不必要的散射光，从而提高杂散光的水平。 如果光栅G1用作简单的聚光镜，则该装置用作单个单色器。

公开(公告)号：JPS56138226A

公开(公告)日：1981-10-28

申请号：JP4252980

申请日：1980-03-31

Applicant: SHIMADZU CORP

Inventor： TSUNASAWA YOSHIO ,  NISHIMURA SETSUYUKI ,  ICHIKAWA TETSUO

IPC: G01N21/27 ,  G01J3/02 ,  G01J3/42

Abstract: PURPOSE:To make it possible to perform a measurement, irrespective of a ratio of both signals, by making K1 and K2 optional constant as to an electric conversion signal Vs of a sample light beam and an electric conversion signal Vr of a control light beam, and controlling so that K1.Vs+K2.Vr is constant. CONSTITUTION:A light beam from the light source L is split into two luminous fluxes through the photometer M and the rotary mirror Bs1. Both the luminous fluxes are made incident to the photodetector D alternately through the rotary mirror Bs2, and are electrically charged in the capacitors C1, C2 of the holding circuits H1, H2 through the preamplifier A and the switches S1, S2 to store them. Those which have been stored in the capacitors C1, C2 are a control signal Vr and a sample signal Vs, respectively. Both the signals are inputted to the dividing circuit Dv through the buffer amplifiers A1, A2, respectively. Also, the output of K1.Vs+K2. Vr is obtained at the connecting point of resistances R1, R2 at the output sides of A1 and A2 (K1 and K2 are optional coefficients). It is compared with the constant voltage (e) by the comparator Cv, and is controlled so as to become a constant value (e). According to such a constitution, measurement can be performed without saturation of amplification, irrespective of a ratio of a sample signal to a control signal.

公开(公告)号：JPS5657937A

公开(公告)日：1981-05-20

申请号：JP13345679

申请日：1979-10-15

Applicant: SHIMADZU CORP

Inventor： FURUSAWA KAZUO ,  TSUNASAWA YOSHIO

IPC: G01N21/75 ,  C12M1/34 ,  G01N21/27 ,  G01N21/79 ,  G01N33/573

Abstract: PURPOSE:To measure the value of the enzyme activity, by measuring the change of the light absorbance which is caused by the change of concentration of the reaction product or the substrate of the early stage of the enzyme reaction by the enzyme in the blood serum and then referring to the velocity of the change of light absorbance. CONSTITUTION:The enzyme in the blood serum and the reactive substrate are introduced to the reaction part 2 to secure a reaction of them, and the light absorbance at that time is detected by the lamp and the spectroscope. the measurement start time and the time of measurement are stored in the microprocessor system 6 for an automatic measurement of the change of the absorbance. The system 6 includes the CPU8, memories 9 and 10, interface 11, keyboard and others, and then can set freely the conditions of measurement by the input given from the keyboard 7. Then the measured value is processed by the CPU to obtain the value of the enzyme activity.