JPH0612517Y2 - Light transmission type cell for particle size distribution measurement by centrifugal sedimentation - Google Patents
Light transmission type cell for particle size distribution measurement by centrifugal sedimentationInfo
- Publication number
- JPH0612517Y2 JPH0612517Y2 JP1985204006U JP20400685U JPH0612517Y2 JP H0612517 Y2 JPH0612517 Y2 JP H0612517Y2 JP 1985204006 U JP1985204006 U JP 1985204006U JP 20400685 U JP20400685 U JP 20400685U JP H0612517 Y2 JPH0612517 Y2 JP H0612517Y2
- Authority
- JP
- Japan
- Prior art keywords
- cell
- particle size
- size distribution
- light transmission
- centrifugal sedimentation
- 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 - Lifetime
Links
Landscapes
- Optical Measuring Cells (AREA)
- Sampling And Sample Adjustment (AREA)
- Centrifugal Separators (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、遠心沈降による光透過方式の粒度分布測定用
セル（以下、セルという）の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement of a cell for measuring particle size distribution of a light transmission type by centrifugal sedimentation (hereinafter referred to as a cell).
周知のように、遠心沈降による光透過方式の粒度分布測
定は、ディスクに形成されたセルホルダ内に、定量の試
料を収容したセルをセットした状態で、前記ディスクを
水平に保持した状態でモータによって回転させると共
に、光源からの光を前記セルに照射して、そのときの透
過光量を検出器によって測定することにより、試料にお
ける粒度分布を得るようにしている。As is well known, the particle size distribution measurement of the light transmission method by centrifugal sedimentation is carried out by a motor in a state where a cell containing a fixed amount of a sample is set in a cell holder formed on a disc and the disc is held horizontally. The particle size distribution in the sample is obtained by rotating the cell and irradiating the cell with light from a light source, and measuring the amount of transmitted light at that time with a detector.
第３図は、上記粒度分布測定に用いるセルの従来例を示
し、セルの本体31はガラスより成り、その内部空間であ
る試料収容部32の断面形状は方形（正方形または長方
形）に形成されている。FIG. 3 shows a conventional example of a cell used for the above-mentioned particle size distribution measurement, in which the cell body 31 is made of glass, and the cross-sectional shape of the sample storage portion 32, which is the internal space, is formed into a square (square or rectangle). There is.
しかしながら、ディスクを高速で回転させると、前記セ
ルに大きな遠心力（例えばディスクの回転が10000回/分
のとき約9000Ｇ）が作用し、従って、上記のように試料
収容部32の断面形状が方形に形成してあるセルにおいて
は、前記の如き強大な遠心力に起因する応力約32kg/cm2
が試料収容部32の角部である４隅32a,32b,32C,32dに集
中的に生じ、セルが破壊されてしまう。However, when the disc is rotated at a high speed, a large centrifugal force acts on the cell (for example, about 9000 G when the disc rotates 10,000 times / min), and thus the cross-sectional shape of the sample container 32 is square as described above. In the cell formed in, the stress due to the strong centrifugal force as described above is about 32 kg / cm 2
Occur intensively at the four corners 32a, 32b, 32C, 32d which are the corners of the sample container 32, and the cell is destroyed.
これに対して、高耐圧用のセルとして例えば、ポリカー
ボネート樹脂等のプラスチック材よりセル本体を形成し
たものが実用に供されているが、前記プラスチック材は
強酸やアセトン、シンナー等の有機溶剤等の薬品に冒さ
れ易いため、プラスチック材より成るセルは、その用途
に制約を受けると云う欠点がある。On the other hand, as a cell for high withstand voltage, for example, a cell body formed of a plastic material such as a polycarbonate resin has been put into practical use. However, the plastic material is a strong acid, acetone, or an organic solvent such as thinner. Due to being susceptible to chemicals, cells made of plastic material have the drawback of being restricted in their application.
本考案は、上述の事柄に留意してなされたもので、その
目的とするところは、耐圧性並びに耐薬品性に優れた高
品質のセルを提供することにある。The present invention has been made in consideration of the above matters, and an object thereof is to provide a high-quality cell excellent in pressure resistance and chemical resistance.
上述の目的を達成するため、本考案に係る遠心沈降によ
る光透過方式の粒度分布測定用セルは、ガラスよりなる
セル本体の外形が、略々方形状に形成される一方、前記
セル本体の内部には試料を収容するための試料収容部が
真円状の断面形状に形成してあることを特徴としてい
る。In order to achieve the above-mentioned object, a cell for measuring particle size distribution of a light transmission method by centrifugal sedimentation according to the present invention is formed such that the outer shape of a cell body made of glass is formed into a substantially square shape, while the inside of the cell body is formed. Is characterized in that a sample storage portion for storing a sample is formed in a perfect circular cross-sectional shape.
以下、本考案の一実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は、本考案に係る遠心沈降による光透過方式の粒
度分布測定用セルの全体を示し、第２図は、セル本体の
断面形状を示す。FIG. 1 shows the whole cell for particle size distribution measurement of the light transmission method by centrifugal sedimentation according to the present invention, and FIG. 2 shows the sectional shape of the cell body.
第１図において、１はセル本体で例えば耐熱性に富むガ
ラスより成り、内部には液体状の試料を収容するための
試料収容部２が形成してある。In FIG. 1, reference numeral 1 denotes a cell main body, which is made of, for example, glass having high heat resistance, and a sample storage portion 2 for storing a liquid sample is formed inside.
前記セル本体１の外形断面は、第２図に示すように、正
方形または長方形の角部に面取りを施した略々方形状を
なし、試料収容部２の断面は円形状としている。As shown in FIG. 2, the outer cross section of the cell body 1 has a substantially square shape with chamfered square or rectangular corners, and the cross section of the sample container 2 is circular.
セル本体１の外形断面を円形とした場合は、セル及びそ
の内部に収容した試料が、いわば凸レンズとなって光源
からの光を絞り、試料に対する照射光の視野（角度）が
狭くなるという不具合を生じるが、本考案ではそのよう
な不具合をさけるため、光透過部分３…を直線としてあ
る。又、４隅に相当する部分には曲線部４…が形成して
ある。他方、内形すなわち試料収容部２の周壁５は真円
状に形成してある。When the outer cross section of the cell body 1 is circular, the cell and the sample housed in the cell become a so-called convex lens, which narrows the light from the light source and narrows the field (angle) of the irradiation light to the sample. However, in the present invention, in order to avoid such a problem, the light transmitting portions 3 ... Further, curved portions 4 ... Are formed at portions corresponding to the four corners. On the other hand, the inner shape, that is, the peripheral wall 5 of the sample container 2 is formed in a perfect circle.
このような形状としたことにより、セル本体１を厚肉に
形成しても、高速回転時に応力を分散させることがで
き、耐圧性を格段に向上させることができた。With such a shape, even if the cell body 1 is formed thick, the stress can be dispersed at the time of high-speed rotation, and the pressure resistance can be significantly improved.
なお、６は前記試料収容部２の口部７を着脱自在に封ず
るための蓋体で、液だめ部８を有する胴部９と方形のス
トッパ部10とから成る。Reference numeral 6 is a lid body for removably sealing the mouth portion 7 of the sample storage portion 2, and includes a body portion 9 having a liquid reservoir portion 8 and a rectangular stopper portion 10.
以上のように、本考案の遠心沈降による光透過方式の粒
度分布測定用セルにおいては、セル本体の試料収容部の
断面形状を円形に形成しているので、高速回転によって
強大な遠心力を受けても、応力が集中することがなく、
従って、破壊されることがなくなる。また、セル本体は
ガラスより成るので、強酸や有機溶剤等の薬品等によっ
て冒されることがないので、どのような試料の測定にも
用いることができる。As described above, in the cell for particle size distribution measurement of the light transmission method by centrifugal sedimentation of the present invention, the sample containing portion of the cell main body is formed in a circular shape, so that it is subjected to a strong centrifugal force by high speed rotation. However, stress is not concentrated,
Therefore, it is not destroyed. Further, since the cell body is made of glass, it is not affected by chemicals such as strong acid or organic solvent, so it can be used for any sample measurement.
従って、本考案によれば、耐圧性並びに耐薬品性に優れ
た高品質のセルを得ることができる。Therefore, according to the present invention, a high quality cell having excellent pressure resistance and chemical resistance can be obtained.
第１図は本考案の実施例を示す斜視図、第２図は断面
図、第３図は従来例を示す斜視図である。 １…セル本体、２…試料収容部。FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view, and FIG. 3 is a perspective view showing a conventional example. 1 ... cell body, 2 ... sample storage part.
Claims (1)
形状に形成される一方、前記セル本体の内部には試料を
収容するための試料収容部が真円状の断面形状に形成し
てあることを特徴とする遠心沈降による光透過方式の粒
度分布測定用セル。1. An outer shape of a cell main body made of glass is formed into a substantially rectangular shape, and a sample storage portion for storing a sample is formed inside the cell main body in a circular cross-sectional shape. A cell for measuring the particle size distribution of a light transmission method by centrifugal sedimentation, which is characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204006U JPH0612517Y2 (en) | 1985-12-31 | 1985-12-31 | Light transmission type cell for particle size distribution measurement by centrifugal sedimentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204006U JPH0612517Y2 (en) | 1985-12-31 | 1985-12-31 | Light transmission type cell for particle size distribution measurement by centrifugal sedimentation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62111645U JPS62111645U (en) | 1987-07-16 |
| JPH0612517Y2 true JPH0612517Y2 (en) | 1994-03-30 |
Family
ID=31169862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985204006U Expired - Lifetime JPH0612517Y2 (en) | 1985-12-31 | 1985-12-31 | Light transmission type cell for particle size distribution measurement by centrifugal sedimentation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612517Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230160801A1 (en) * | 2020-04-28 | 2023-05-25 | Horiba, Ltd. | Measurement cell and centrifugal sedimentation-type particle-size distribution measuring device using said measurement cell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247715B2 (en) * | 1971-12-27 | 1977-12-05 | ||
| JPS5918350Y2 (en) * | 1978-10-31 | 1984-05-28 | 株式会社島津製作所 | Particle size distribution measuring device |
-
1985
- 1985-12-31 JP JP1985204006U patent/JPH0612517Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62111645U (en) | 1987-07-16 |
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