JPS5923380B2 - Continuous photometry analyzer - Google Patents
Continuous photometry analyzerInfo
- Publication number
- JPS5923380B2 JPS5923380B2 JP8728379A JP8728379A JPS5923380B2 JP S5923380 B2 JPS5923380 B2 JP S5923380B2 JP 8728379 A JP8728379 A JP 8728379A JP 8728379 A JP8728379 A JP 8728379A JP S5923380 B2 JPS5923380 B2 JP S5923380B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- cylinder
- detector
- light source
- cell length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
Description
【発明の詳細な説明】
本発明は、簡単で迅速にセル長を変更することができ、
かつ、連続測定ができさらにセル長の変更動作を筒体の
外周の洗浄や測定試料の攪拌等に利用し易い構造の連続
測光分析計を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention allows cell length to be changed easily and quickly;
In addition, the present invention provides a continuous photometric analyzer that can perform continuous measurements and has a structure in which the cell length changing operation can be easily used for cleaning the outer periphery of the cylindrical body, stirring the measurement sample, and the like.
測光分析計は、ランパート・ベールの法則を基礎原理と
しておわ、入射光を１０、セル長をを、吸光度係数（測
定波長と測定対象物により定まる定数）をに１濃度をＣ
とすると、透過元日は、１＝１０ｅ−ＫＣｔ・・・・・
・４によつて表わされる。The basic principle of the photometric analyzer is the Lampert-Beer law, where the incident light is 10, the cell length is 1, the absorbance coefficient (a constant determined by the measurement wavelength and the object to be measured) is 1, and the concentration is C.
Then, the transparent New Year's day is 1=10e-KCt...
・Represented by 4.
従つて１０、ιを一定に保ち、Ｉを測定することによつ
て、濃度Ｃを測定できるわけであるが、光源、検出器の
劣化及びセル窓の汚れがあると、これらによる誤差によ
り正確な測定結果を得ることができない。それ故、長期
間安定に精度よ〈連続測定するためには、光源や検出器
の劣化及びセル窓の汚れによる誤差を補正する必要があ
る。Therefore, the concentration C can be measured by keeping ι constant and measuring I, but if the light source, detector deteriorates, or the cell window is dirty, the accuracy will be inaccurate due to errors caused by these factors. Unable to obtain measurement results. Therefore, in order to perform stable, accurate and continuous measurements over a long period of time, it is necessary to correct errors caused by deterioration of the light source and detector and dirt on the cell window.
これらの誤差を取わ除くために従来種々工夫がなされて
きた。実公昭４３−１３５５号公報のセル長変調方式も
その一つである。そのセル長変調方式は、セル長をｔｌ
、を２ど長短２様に変化させ、セル長ｔｌのときの測定
信号とセル長を２のときの測定信号とを取わ出すように
なつている。ところで、従来のセル長変調方式の測光分
析計は実公昭４３−１３５５号公報にみられるように、
光源と検出器との間に、軸芯方向両端にセル窓をもつ測
定セルを配置するといつた構成が採られておわ、測定セ
ルの直線的な伸縮動作によつてセル長を変更するように
なつている。Various attempts have been made to eliminate these errors. The cell length modulation method disclosed in Japanese Utility Model Publication No. 43-1355 is one of them. The cell length modulation method changes the cell length to tl
, are changed in two lengths, and a measurement signal when the cell length is tl and a measurement signal when the cell length is 2 are extracted. By the way, the conventional cell length modulation type photometric analyzer is as shown in Japanese Utility Model Publication No. 1355/1983
A configuration is adopted in which a measurement cell with cell windows at both ends in the axial direction is placed between the light source and the detector, and the cell length is changed by linear expansion and contraction of the measurement cell. It's getting old.
従つて、セルの変更には、検出器を直線運動させなけれ
ばならず、モータ等の回転運動をｙｆ囲する場合、回転
運動を直線運動に変換しなければならず機構が複雑にな
る。Therefore, in order to change the cell, the detector must be moved linearly, and if the rotational movement of a motor or the like is to be covered by yf, the rotational movement must be converted into linear movement, which complicates the mechanism.
又、測定セルの容積変化が伴い、そのシール部からの測
定試料のリークが問題となる。また、ブラシ等の洗浄具
でセル窓を洗浄する場合、測定を中断して行なう必要が
あシ、しかも、セル長変更のための伸縮動作をセル窓洗
浄、測淀試料の攪拌など他の用途に利用することは困難
である。Further, as the volume of the measurement cell changes, leakage of the measurement sample from the seal portion becomes a problem. In addition, when cleaning the cell window with a cleaning tool such as a brush, it is necessary to interrupt the measurement, and the expansion and contraction movement to change the cell length can be used for other purposes such as cleaning the cell window or stirring the sample. It is difficult to use it for
本発明の連続測光分析計は、このような現状に鑑みて開
発されたもので、光源を内装する筒体と、検出器を内装
する筒体とを測定試料中に相対向して設け、少なくとも
一方の筒体が円形または楕円形の横断面形状を有する筒
体よりなり、かつ、測定波長透過材料より形成され、該
筒体を、横断面形状が円形の場合は偏心した位置を、横
断面形状が楕円形の場合は、該楕円形内の任意の位置を
中心にして回転自在に構成し、該筒体の回転によりセル
長を変更すべく構成した点に特徴がある。The continuous photometric analyzer of the present invention was developed in view of the current situation, and includes a cylinder housing a light source and a cylinder housing a detector, which are placed opposite each other in a measurement sample. One of the cylinders has a circular or elliptical cross-sectional shape, and is made of a material that transmits the measurement wavelength. When the shape is elliptical, it is characterized in that it is configured to be rotatable around any position within the ellipse, and the cell length is changed by rotating the cylinder.
以下、本発明の実施例を図面に基づいて説明する。第１
図乃孝第４図は本発明に係る連続測光分析計を示し、１
Ａ１１Ｂは、測定試料２中に相対向する状態に浸漬させ
て配置した横断面形状が円形の有底の筒体であり１筒体
１Ａ，１Ｂが測定波長透過材料により形成されている。
一方の筒体１Ａ内には、偏心した位置に光源３が挿設さ
れ、他方の筒体１Ｂ内には、偏心した位置に検出器４が
挿設され、光源３から照射された光をしや断することな
く、連続的に測定試料に照射し、測定試料２を通過した
測定光を連続的に受光し、受光量に応じた電気信号を連
続的に出力するように構成されている。前記両筒体１Ａ
，１Ｂの上端部外周にはギヤ５Ａ，５Ｂが固着されて訃
わ、両ギヤ５Ａ，５ＢＶＣ噛合するギヤ６をモーＩＭで
回転駆動することにより、両筒体１Ａ，１Ｂが光源３、
検出器４を中心に偏心回転してセルＴｌ，ｔ２を変更す
るように構成されている。図中７は干渉フイルノ、８Ａ
，８Ｂは筒体１Ａ，１Ｂを回転自在に支持する測定波長
透過材料よりなる内筒であり、光源３、検出器４は、こ
れら内筒８Ａ，８Ｂの中心に配置されている。９は測光
増巾器である。Embodiments of the present invention will be described below based on the drawings. 1st
Figure 4 shows a continuous photometric analyzer according to the present invention.
A11B is a bottomed cylinder with a circular cross-sectional shape that is immersed in the measurement sample 2 so as to face each other, and each of the cylinders 1A and 1B is made of a material that transmits the measurement wavelength.
A light source 3 is inserted at an eccentric position in one cylinder 1A, and a detector 4 is installed at an eccentric position in the other cylinder 1B to detect the light emitted from the light source 3. It is configured to continuously irradiate the measurement sample without interruption, continuously receive the measurement light that has passed through the measurement sample 2, and continuously output an electric signal according to the amount of received light. Both cylindrical bodies 1A
Gears 5A, 5B are fixed to the outer periphery of the upper end of the cylindrical bodies 1A, 1B.By rotationally driving the gear 6 which meshes with both the gears 5A, 5BVC by the motor IM, both the cylindrical bodies 1A, 1B are connected to the light sources 3, 1B.
It is configured to rotate eccentrically around the detector 4 to change the cells Tl and t2. In the figure, 7 is an interference filter, 8A
, 8B are inner cylinders made of a measurement wavelength transmitting material that rotatably support the cylinders 1A, 1B, and the light source 3 and detector 4 are arranged at the center of these inner cylinders 8A, 8B. 9 is a photometric intensifier.
前記両筒体１Ａ，１Ｂは互いに１８０度の位相差をもた
せて配置してもよいが、第５図に示すように、１８０度
以外の位相差をもたせて配置することによつて、セル長
の変更範囲を無段階に変更できる。即ち、第５図に卦い
て、Ｐ：円中心 Ｑ；偏心回転中心 γ；円の半径Ｓ；
偏心長さ θ；回転角 β；位相差Ｌ；偏心回転中心間
の距離
とすると、セル長ｔは、
となる。The cylindrical bodies 1A and 1B may be arranged with a phase difference of 180 degrees, but as shown in FIG. 5, by arranging them with a phase difference other than 180 degrees, the cell length can be increased. The change range can be changed steplessly. That is, in Figure 5, P: center of circle Q: center of eccentric rotation γ: radius of circle S;
Eccentric length θ; rotation angle β; phase difference L; distance between eccentric rotation centers, the cell length t is as follows.
上記構成の測光分析計は、光源３、検出器４の劣化及び
筒体の外周１ａ，１ｂの汚れを補正するための信号を取
り出す所謂セル長変調方式として用い得るばかわでなく
、測定試料２の濃度範囲に適応するセル長に変更して、
即ち、高濃度である場合にはセル長を短かくし、低濃度
の場合にはセル長を長くするといつたように、セル長を
固定的に変更調節して用いることにより、感度変更を行
なえるものである。The photometric analyzer having the above configuration can be used not only as a so-called cell length modulation method for extracting signals for correcting the deterioration of the light source 3 and the detector 4 and the dirt on the outer circumferences 1a and 1b of the cylinder, but also for the measurement sample 2. by changing the cell length to accommodate the concentration range of
In other words, sensitivity can be changed by changing and adjusting the cell length in a fixed manner, such as shortening the cell length when the concentration is high and lengthening it when the concentration is low. It is something.
尚、横断面形状が円形の筒体を用いるかわりに、横断面
形状が楕円形の筒体を用い、該楕円形内の任意の位置を
中心にして回転自在に構成してもよい。Incidentally, instead of using a cylinder with a circular cross-sectional shape, a cylinder with an elliptical cross-sectional shape may be used and configured to be rotatable about any position within the ellipse.
第６図、第７図は別の実施例を示し、光源３から検出器
４への測定光を遮らない位置に洗浄ブラシ１０Ａ，１０
Ｂを設けて、セル長変更のための筒体１Ａ，１Ｂの回転
により、筒体の外周１ａ，１ｂがブラシ洗浄されるよう
に構成した点に特徴がある。6 and 7 show another embodiment, in which cleaning brushes 10A and 10 are placed in positions that do not block the measurement light from the light source 3 to the detector 4.
B is provided so that the outer circumferences 1a and 1b of the cylinders are cleaned with a brush by rotating the cylinders 1A and 1B to change the cell length.
第８図は別の実施例を示し、筒体１Ａ，１Ｂの底部下面
に攪拌羽根１１Ａ，１１Ｂを固着し、セル長変更のため
の筒体１Ａ，１Ｂの回転によシ、攪拌羽根１１Ａ，１１
Ｂが一体回転して、測定試料２を撹拌し、濃度分布を均
一化するように構成した点に特徴がある。FIG. 8 shows another embodiment, in which stirring blades 11A, 11B are fixed to the lower surfaces of the bottoms of the cylinders 1A, 1B, and the stirring blades 11A, 11B are rotated to change the cell length. 11
The feature is that B rotates integrally to stir the measurement sample 2 and make the concentration distribution uniform.
本発明は、以上の構成からなｂ、冒頭に述べた従来品と
は逆に、筒体の外側に測定試料があシ、測定試料中で筒
体を回転させてセル長を変更するため、セルの容積変化
を伴わずにセル長を変更でき、機構も簡単になり、又、
シール部からのりークも問題にしなくてもよく光源から
の光をしや断することなく測定試料に照射し、連続的に
受光、出力するようにしたため、連続測定ができる。The present invention has the above-mentioned configuration.b.Contrary to the conventional product mentioned at the beginning, the measurement sample is placed on the outside of the cylindrical body, and the cell length is changed by rotating the cylindrical body within the measurement sample. The cell length can be changed without changing the cell volume, the mechanism is simple, and
There is no need to worry about leakage from the seal.The light from the light source is irradiated onto the measurement sample without interruption, and the light is continuously received and output, allowing continuous measurement.
しかも、筒体の回転によ幻セル長を変更するため、実施
例のように、洗浄ブラン、攪拌羽根を設けることによつ
て、セル長の変更動作を、筒体の外周の洗浄、測定試料
の攪拌等に利用でき、測定とセル窓洗浄とを同時に併用
することも可能になるのである。尚、前記実施例のよう
に、筒体を測定波長透過材料により形成するかわｂに第
９図に示すように、筒体の光が通過する部分２０のみを
測定波長透過材料により形成してもよく、また、光源ま
たは検出器を筒体の回転の中心に設けず、他の任意の位
置に設けてもよい。Moreover, in order to change the phantom cell length by rotating the cylindrical body, by providing a cleaning blank and a stirring blade as in the example, the cell length changing operation can be performed by cleaning the outer periphery of the cylindrical body and measuring sample. It can be used for stirring, etc., and it is also possible to use measurement and cell window cleaning at the same time. Incidentally, instead of forming the cylindrical body from a material that transmits the measurement wavelength as in the above embodiment, as shown in FIG. Alternatively, the light source or the detector may not be provided at the center of rotation of the cylinder, but may be provided at any other arbitrary position.
第１図乃至第５図は本発明の実施例を示し、第１図、第
３図は縦断正面図、第２図、第４図は横断平面図、第５
図は作用図、第６図、第７図は別の実施例を示す縦断正
面図と横断平面図、第８図はさらに別の実施例を示す縦
断正面図、第９図は、筒体の他の実施例を示す図である
。
１Ａ，１Ｂ・・・・・・筒体、１ａ，１ｂ・・・・・・
筒体の外周、２・・−・・測定試料、３・・・・・・光
源、４・・・・・・検出器。1 to 5 show embodiments of the present invention, in which FIGS. 1 and 3 are longitudinal sectional front views, FIGS. 2 and 4 are cross-sectional plan views, and FIG.
6 and 7 are longitudinal sectional front views and cross-sectional plan views showing another embodiment. FIG. 8 is a longitudinal sectional front view showing yet another embodiment. FIG. 9 is a cylindrical body. It is a figure which shows another Example. 1A, 1B...Cylinder, 1a, 1b...
Outer circumference of cylinder, 2...Measurement sample, 3...Light source, 4...Detector.
Claims (1)
測定試料中に相対向して設け、少なくとも一方の筒体が
、円形の横断面形状を有する筒体よりなり、かつ、測定
波長透過材料より形成され、該筒体を、偏心した位置を
中心にして回転自在に構成し、該筒体の回転によりセル
長を変更すべく構成してあることを特徴とする連続測光
分析計。 ２ 光源が、筒体の回転の中心にある特許請求の範囲第
１項記載の連続測光分析計。 ３ 検出器が、筒体の回転の中心にある特許請求の範囲
第１項または第２項記載の連続測光分析計。 ４ 光源を内装する筒体と、検出器を内装する筒体とを
測定試料中に相対向して設け、少なくとも一方の筒体が
、楕円形の横断面形状を有する筒体よりなり、かつ、測
定波長透過材料より形成され、該筒体を、前記楕円形内
の任意の位置を中心にして回転自在に構成し、該筒体の
回転によりセル長を変更すべく構成してあることを特徴
とする連続測光分析計。 ５ 光源が、筒体の回転の中心にある特許請求の範囲第
４項記載の連続測光分析計。 ６ 検出器が、筒体の回転の中心にある特許請求の範囲
第４項または第５項記載の連続測光分析計。[Scope of Claims] 1. A cylindrical body in which a cylindrical body containing a light source and a cylindrical body containing a detector are disposed opposite each other in a measurement sample, and at least one of the cylindrical bodies has a circular cross-sectional shape. and made of a material that transmits the measurement wavelength, the cylinder is configured to be rotatable around an eccentric position, and the cell length is changed by rotation of the cylinder. Continuous photometric analyzer. 2. The continuous photometric analyzer according to claim 1, wherein the light source is located at the center of rotation of the cylinder. 3. The continuous photometric analyzer according to claim 1 or 2, wherein the detector is located at the center of rotation of the cylinder. 4. A cylindrical body containing a light source and a cylindrical body containing a detector are provided in the measurement sample to face each other, and at least one of the cylindrical bodies is a cylindrical body having an elliptical cross-sectional shape, and The cylindrical body is made of a material that transmits the measurement wavelength, and the cylindrical body is configured to be rotatable around any position within the ellipse, and the cell length is changed by rotation of the cylindrical body. Continuous photometric analyzer. 5. The continuous photometric analyzer according to claim 4, wherein the light source is located at the center of rotation of the cylinder. 6. The continuous photometric analyzer according to claim 4 or 5, wherein the detector is located at the center of rotation of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8728379A JPS5923380B2 (en) | 1979-07-07 | 1979-07-07 | Continuous photometry analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8728379A JPS5923380B2 (en) | 1979-07-07 | 1979-07-07 | Continuous photometry analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5610233A JPS5610233A (en) | 1981-02-02 |
| JPS5923380B2 true JPS5923380B2 (en) | 1984-06-01 |
Family
ID=13910452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8728379A Expired JPS5923380B2 (en) | 1979-07-07 | 1979-07-07 | Continuous photometry analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923380B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824540A (en) * | 1981-08-06 | 1983-02-14 | Dai Ichi Seiyaku Co Ltd | Preparation of trans-hexyhydroterephthalic acid |
| JPS5833392U (en) * | 1981-08-28 | 1983-03-04 | 株式会社生道鉄工所 | Automatic watertight tightening mechanism of hatch cover device |
| KR100327244B1 (en) | 1998-12-28 | 2002-05-09 | 윤종용 | Developer concentration measurement device of wet press |
| JP4627022B2 (en) * | 2005-07-29 | 2011-02-09 | 株式会社堀場製作所 | Photometric analyzer |
| DE102016110609B4 (en) * | 2016-06-08 | 2024-05-08 | Endress+Hauser Conducta Gmbh+Co. Kg | Sensor system and method for process-integrated optical analysis of bulk materials |
-
1979
- 1979-07-07 JP JP8728379A patent/JPS5923380B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5610233A (en) | 1981-02-02 |
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