JPH0248858B2 - - Google Patents
Info
- Publication number
- JPH0248858B2 JPH0248858B2 JP56044783A JP4478381A JPH0248858B2 JP H0248858 B2 JPH0248858 B2 JP H0248858B2 JP 56044783 A JP56044783 A JP 56044783A JP 4478381 A JP4478381 A JP 4478381A JP H0248858 B2 JPH0248858 B2 JP H0248858B2
- Authority
- JP
- Japan
- Prior art keywords
- parallel
- sample
- piston
- rod
- movement mechanism
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Description
【発明の詳細な説明】
この発明は流体若しくは半固体の試料の粘性を
測定するための平行板粘度計に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parallel plate viscometer for measuring the viscosity of fluid or semi-solid samples.
食料品、潤滑油、或いは印刷インキ等の流体若
しくは半固体の試料の粘性を測定するために従来
感応検査が行われており、またこの感応検査を機
械化するために各種の粘度計が開発されて来てお
り、そのような粘度計の一種として平行板粘度計
（スプレツドメーター）がある。従来の平行板粘
度計は透明の２枚のガラス板の間に粘性流体或い
は半固体の試料を入れ、これを所定の圧力で押圧
して試料の経時的な拡がりを試験員が前記ガラス
板の上から観察している。試料の拡がりの測定は
試料がほぼ円形に拡がるとの前提に立つて試料の
Ｘ軸及びＹ軸との接辺を観察し平均値で半径を求
めている。この場合に時刻ｔにおける半径をｒ、
初期半径をr0として、
ｒ＝r0＋Alogt（Ａ：定数）
なる曲線に近似する場合が多い。しかしながらこ
の方法では、試料は必ずしも円形に拡がるとは限
らないので、誤差が大きくなる場合があつて測定
精度に問題があり、また長時間にわたる試験時間
中試験員を拘束する必要があつて不経済である。
また粘度の測定にあたつては時間に関する試料の
半径増加曲線の傾きが重要な意味を持つており、
したがつて半径の時間当りの増加率の曲線が求め
られれば粘性測定の上からも大きな進歩といえる
のであるが、この曲線を従来の平行板粘度計によ
る測定によつて描くためには、試験員は時刻と試
料の拡がりの半径を同時にしかも瞬時に確認せね
ばならず、測定には高度の熟練を要し、精度のよ
い信頼性のある結果を得ることは甚だ困難であ
り、また試料の拡がりの半径を求めるに当つては
前述のような半径の平均値を求めるよりも、試料
の面積を測定し、これから換算半径を求める方が
データとして信頼性があると考えられるけれど
も、従来の測定方法ではこの換算半径を求めるこ
とが困難であつた。 Sensitive testing has traditionally been performed to measure the viscosity of fluid or semi-solid samples such as food products, lubricating oils, or printing inks, and various viscometers have been developed to mechanize this sensitive testing. One type of such viscometer is the parallel plate viscometer (spread meter). In a conventional parallel plate viscometer, a viscous fluid or semi-solid sample is placed between two transparent glass plates, and by pressing the sample with a predetermined pressure, the tester can measure the spread of the sample over time from above the glass plate. I'm observing. Measurement of the spread of the sample is based on the premise that the sample spreads approximately circularly, and the tangent sides of the sample to the X- and Y-axes are observed and the radius is determined using an average value. In this case, the radius at time t is r,
When the initial radius is r 0 , the curve is often approximated as r=r 0 +Alogt (A: constant). However, with this method, the sample does not necessarily spread out in a circular shape, so errors may become large, resulting in problems with measurement accuracy, and the tester must be restrained during the long test period, which is uneconomical. It is.
In addition, when measuring viscosity, the slope of the sample radius increase curve with respect to time has an important meaning.
Therefore, if a curve of the rate of increase in radius per hour can be determined, it would be a great advance in terms of viscosity measurement, but in order to draw this curve by measurement using a conventional parallel plate viscometer, it is necessary to conduct tests. The operator has to check the time and the radius of the specimen spread simultaneously and instantaneously, and measurement requires a high degree of skill, making it extremely difficult to obtain accurate and reliable results, and making measurements difficult. When determining the radius of spread, it is considered more reliable as data to measure the area of the sample and calculate the converted radius from this than to calculate the average value of the radius as described above, but conventional measurements It was difficult to determine this converted radius using this method.
そこで、この発明の発明者は、これらの問題を
解決するために、新たな平行板粘度計を開発した
（特願昭53−139083号参照）。 In order to solve these problems, the inventor of the present invention developed a new parallel plate viscometer (see Japanese Patent Application No. 139083/1983).
この新たに開発した平行板粘度計は、試料が押
し拡げられる場合の平行板間の試料の面積の変化
率を光学的に測定して換算半径を求めることを基
本的な技術として成立したものであつて、試料の
粘性を容易かつ確実に測定し得るきわめて顕著な
効果を有するものであるが、ここに使用する光学
機器が比較的高価である点、及び試料が光不透過
性のものであることを要するなど測定可能な試料
の種類に制限があること等において問題が残つて
いる。 This newly developed parallel plate viscometer was established based on the basic technology of optically measuring the rate of change in the area of a sample between parallel plates when the sample is pushed apart to find the converted radius. This method has a very remarkable effect in that the viscosity of a sample can be easily and reliably measured, but the optical equipment used here is relatively expensive, and the sample is not transparent to light. Problems remain, including limitations on the types of samples that can be measured.
この発明は上記の如き事情に鑑みてなされたも
のであつて、あらゆる試料について粘性の測定を
自動的に行うことができ、したがつて試験員を長
時間拘束する必要がなく、また換算半径を容易に
求めることができ、信頼性の高いデータを得るこ
とができ、かつ、安価な平行板粘度計を提供する
ことを目的とするものである。 This invention was made in view of the above circumstances, and it is possible to automatically measure the viscosity of any sample, so there is no need to restrain the tester for a long time, and the converted radius can be reduced. The object of the present invention is to provide a parallel plate viscometer that is easy to obtain, can obtain highly reliable data, and is inexpensive.
この目的に対応して、この発明の平行板粘度計
は、試料を挾圧して押し拡げ得るように対向して
平行に位置し前記平行を保つたまま相対変位し得
る平行平面と、前記平行平面のうちの一方の平面
を平行移動させる平行移動機構と、前記平行移動
機構にとりつけられていて前記平行平面を介して
前記試料に荷重を作用させる重錘と、ピストンを
有し前記ピストンの上昇によつて前記平行平面間
に前記試料を装入する試料装入装置と、回転変位
可能で前記回転変位により前記ピストンと当接し
て前記ピストンを前記上昇させ得るアームと、前
記平行移動機構を拘束する位置と前記拘束を解く
位置とに変位可能なロツドと、前記ロツドの前記
変位を拘束可能であつて前記アームの前記回転変
位によつて変位して前記拘束を解くストツパー
と、前記ストツパーの前記変位によつて入切する
計時装置のスイツチと、前記平行平面間の距離を
検出する検出装置とを備えることを特徴としてい
る。 Corresponding to this purpose, the parallel plate viscometer of the present invention has two parallel planes that are located opposite to each other in parallel so as to be able to clamp and spread a sample, and that can be relatively displaced while maintaining said parallel planes; A parallel movement mechanism that moves one of the planes in parallel, a weight that is attached to the parallel movement mechanism and applies a load to the sample via the parallel plane, and a piston, and the movement of the piston causes the movement of the piston to rise. Therefore, the sample loading device that loads the sample between the parallel planes, the arm that is rotatably displaceable and that can come into contact with the piston and raise the piston by the rotational displacement, and the parallel movement mechanism are restrained. a rod that can be displaced between a position and a position where the restraint is released; a stopper that can restrain the displacement of the rod and is displaced by the rotational displacement of the arm to release the restraint; and the displacement of the stopper. The present invention is characterized in that it includes a switch for a timekeeping device that is turned on and off by a switch, and a detection device that detects the distance between the parallel planes.
以下この発明の詳細を一実施例を示す図面につ
いて説明する。 The details of this invention will be explained below with reference to the drawings showing one embodiment.
この発明の平行板粘度計は、基本的には、第１
図に示す如く、平行平面ａ，ｂ間に装入されて、
平行平面ａ，ｂの接近にともなつて押し拡げられ
る試料Ｓの換算半径を、試料Ｓの厚みｘを測定す
ることによつて求めるものであつて、その具体的
な構成は第２図及び第３図に示す通りである。 The parallel plate viscometer of this invention basically consists of the first
As shown in the figure, it is charged between parallel planes a and b,
The converted radius of the sample S, which is expanded as the parallel planes a and b approach, is determined by measuring the thickness x of the sample S, and its specific configuration is shown in Figure 2 and As shown in Figure 3.
第２図及び第３図において、１は平行板粘度計
である。平行板粘度計１は２枚の平板２，３を備
えている。平板２，３のそれぞれの内側面ａ，ｂ
は平面をなし、かつ対向して位置する。このａ，
ｂ面は粘性を測定すべき試料を挾圧して押し拡げ
る平行平面を構成するもので、したがつて、ａ，
ｂ面は相互に平行を保つたまま接近し、または、
離隔する。平板３は支脚４によつて固定支持され
る基盤５に固定しており、したがつて、平板３は
固定位置に存する。 In FIGS. 2 and 3, 1 is a parallel plate viscometer. The parallel plate viscometer 1 includes two flat plates 2 and 3. Respective inner surfaces a and b of flat plates 2 and 3
are flat and located opposite each other. This a,
The b-plane constitutes a parallel plane that clamps and spreads the sample whose viscosity is to be measured, and therefore the a,
The b-planes approach each other while remaining parallel, or
Separate. The flat plate 3 is fixed to a base 5 which is fixedly supported by the supporting legs 4, and therefore the flat plate 3 exists in a fixed position.
平板２は平行移動機構６に接触していて、平板
３に対して平行を保つたまま変位し得る。すなわ
ち、平行移動機構６は４本のリンク部材７，８，
９，１１を平行四辺形にまわり対偶で連結したも
ので、リンク部材８を基盤５に固定する。リンク
部材８の反対側のリンク部材７の下端に押し板１
２が取り付けられ、押し板１２は鋼球１３を介し
て平板２と伝動関係にある。 The flat plate 2 is in contact with the parallel movement mechanism 6 and can be displaced while remaining parallel to the flat plate 3. That is, the parallel movement mechanism 6 includes four link members 7, 8,
The link member 8 is fixed to the base 5 by connecting the link members 9 and 11 in pairs around a parallelogram. A push plate 1 is attached to the lower end of the link member 7 on the opposite side of the link member 8.
2 is attached, and the push plate 12 is in a transmission relationship with the flat plate 2 via a steel ball 13.
リンク部材７の上端には重錘１５が取り付けら
れる。この重錘１５は平板２の平板３に対する押
圧力を規定するものであり、所望の重量のものと
交換可能である。またリンク部材１１の後端の延
長上に重錘１６がねじ１７を用いて取り付けられ
ている。重錘１６は重錘１５の重量が作用してい
ない状態において平行移動機構６をバランスさせ
るものであり、その調整は重錘１６を他の重量の
ものと交換するか、或いはねじ１７を利用して位
置を進退させて行う。 A weight 15 is attached to the upper end of the link member 7. This weight 15 defines the pressing force of the flat plate 2 against the flat plate 3, and can be replaced with a weight of a desired weight. Further, a weight 16 is attached to an extension of the rear end of the link member 11 using a screw 17. The weight 16 balances the parallel movement mechanism 6 when the weight of the weight 15 is not acting, and the adjustment can be made by replacing the weight 16 with one of another weight or by using the screw 17. This is done by moving the position forward and backward.
平行移動機構６はロツク装置１８によつてロツ
クされることが可能である。ロツク装置１８はロ
ツド１９及びピン２１を備えている。ロツド１９
は垂直に位置し、かつ上下方向に昇降可能であ
る。ロツド１９の途中にはピン２１が水平方向に
延出しており、このピン２１が平行移動機構６の
リンク部材１１を載置支持した状態において平行
移動機構６が停止し、ロツド１９が下降し、それ
に伴つてピン２１が下降してリンク部材１１から
離れると、平行移動機構６が変位して、リンク部
材７が下降し、重錘１５の重量が平行平面ａ，ｂ
間に作用して試料を押圧する。ロツド１９は基盤
５に取り付けられたスリーブ２２を案内として基
盤５を貫通しており、下端がストツパー２３に支
持されている。ストツパー２３はロツド１９の下
端を受け入れ得る穴５１を有し、かつ左右の方向
に移動可能である。ストツパー２３は、軸２０に
関して回転可能な旋回部材３２が回転すると、そ
の旋回部材３２に押されてばね５２の圧力に抗し
て右方に移動し、ストツパー２３の穴５１はロツ
ド１９の直下にくるので、これによつてロツド１
９はこの穴５１の中に落ち込み、したがつてピン
２１は下降してリンク部材１１を解放する。この
旋回部材３２の回転は試料装入装置２４の作動と
連動して行われる。そして、ストツパー２３が右
方に移動するとこれに付属するピン５３はマイク
ロスイツチ５４を作動せしめ、電気信号を発生す
る。 The translation mechanism 6 can be locked by a locking device 18. The locking device 18 includes a rod 19 and a pin 21. rod 19
is located vertically and can be moved up and down. A pin 21 extends horizontally in the middle of the rod 19, and when the pin 21 supports the link member 11 of the parallel movement mechanism 6, the parallel movement mechanism 6 stops and the rod 19 descends. When the pin 21 descends and separates from the link member 11, the parallel movement mechanism 6 is displaced, the link member 7 descends, and the weight of the weight 15 is transferred to the parallel planes a and b.
act between them and press the sample. The rod 19 passes through the base 5 using a sleeve 22 attached to the base 5 as a guide, and its lower end is supported by a stopper 23. The stopper 23 has a hole 51 capable of receiving the lower end of the rod 19, and is movable in left and right directions. When the rotatable pivot member 32 rotates about the shaft 20, the stopper 23 is pushed by the pivot member 32 and moves to the right against the pressure of the spring 52, and the hole 51 of the stopper 23 is located directly below the rod 19. Therefore, by this, Rod 1
9 falls into this hole 51 so that the pin 21 descends and releases the link member 11. This rotation of the rotating member 32 is performed in conjunction with the operation of the sample loading device 24. When the stopper 23 moves to the right, the attached pin 53 operates the micro switch 54 to generate an electric signal.
試料装入装置２４はシリンダ２５とピストン２
６とを有する。平板３には垂直方向に孔２７が貫
通形成されており、この孔２７にシリンダ２５が
流体密に、かつ、取りはずし可能に係合してい
る。ピストン２６の上端面とシリンダ２５によつ
て区画される空間２８は被検体たる試料を収納す
るために機能する空間であり、ピストン２６が上
昇すると空間２８内の試料は平行平面ａ，ｂ間に
押し出される。ピストン２６の下端は押し棒５５
と接続しており、押し棒５５が上昇することによ
つてピストン２６が押し上げられる。押し棒５５
はアーム２９によつて押し上げられる。アーム２
９は軸３１に関して回転可能であり、アーム２９
が軸３１に関して回転上昇すると押し棒５５が押
し上げられ、また、ピストン２６が押し上げら
れ、空間２８内の試料が平行平面ａ，ｂ間に押し
出される。空間２８の深さと直径は試料の容積を
決めるものであり、試料の性質、試験の目的によ
つて正確に製作するものである。また、アーム２
９が回転上昇すると、この上昇が軸２０に関して
回転可能な旋回部材３２に伝達されて旋回部材３
２が回転する。旋回部材３２はその回転によりス
トツパー２３を右方におしやり、その結果、ロツ
ド１９が下降して、ピン２１による平行移動機構
６の拘束を解除する。つまり、試料が平行平面
ａ，ｂ間に挿入されると同時に平行移動機構６が
変位して平行平面ａ，ｂ間の試料の押圧が開始す
る。また、同時に押圧開始を知らせる電気信号が
マイクロスイツチ５４から得られる。 The sample loading device 24 includes a cylinder 25 and a piston 2.
6. A hole 27 is vertically formed through the flat plate 3, and the cylinder 25 is fluid-tightly and removably engaged with the hole 27. A space 28 defined by the upper end surface of the piston 26 and the cylinder 25 is a space that functions to accommodate a sample to be examined. When the piston 26 rises, the sample in the space 28 is separated between parallel planes a and b. being pushed out. The lower end of the piston 26 is a push rod 55
When the push rod 55 rises, the piston 26 is pushed up. push rod 55
is pushed up by arm 29. Arm 2
9 is rotatable about the axis 31 and the arm 29
When it rotates upward with respect to the shaft 31, the push rod 55 is pushed up, and the piston 26 is also pushed up, and the sample in the space 28 is pushed out between the parallel planes a and b. The depth and diameter of the space 28 determine the volume of the sample, and are manufactured accurately depending on the properties of the sample and the purpose of the test. Also, arm 2
9 rotates upward, this upward movement is transmitted to the rotating member 32 which is rotatable about the shaft 20, and the rotating member 3
2 rotates. The rotation of the rotating member 32 forces the stopper 23 to the right, and as a result, the rod 19 descends, releasing the restraint of the parallel movement mechanism 6 by the pin 21. That is, at the same time as the sample is inserted between the parallel planes a and b, the parallel movement mechanism 6 is displaced and the pressing of the sample between the parallel planes a and b starts. At the same time, an electric signal indicating the start of pressing is obtained from the microswitch 54.
試料の厚みの測定は、平行平面ａ，ｂの間隔を
測定装置３３によつて測定することにより行な
う。測定装置３３は板ばね３４を備えている。板
ばね３４は端を基盤５に取り付け、他端を自由端
としている。板ばね３４にはストレンゲージ３５
が貼着してある。一方、平板２にはアーム３６が
固定され、このアーム３６の先端にボルト３７が
取り付けられている。ボルト３７の下端は板ばね
３４の自由端に当接している。平板２が下降する
とボルト３７が板ばね３４を撓ませ、この撓み量
をストレンゲージ３５で測定することによつて試
料の厚さを測定する。 The thickness of the sample is measured by measuring the distance between parallel planes a and b using a measuring device 33. The measuring device 33 is equipped with a leaf spring 34 . The leaf spring 34 has one end attached to the base 5 and the other end as a free end. A strain gauge 35 is attached to the leaf spring 34.
is pasted. On the other hand, an arm 36 is fixed to the flat plate 2, and a bolt 37 is attached to the tip of the arm 36. The lower end of the bolt 37 abuts the free end of the leaf spring 34. When the flat plate 2 is lowered, the bolt 37 deflects the leaf spring 34, and the amount of this deflection is measured with a strain gauge 35, thereby measuring the thickness of the sample.
このように構成された平行板粘度計を使用して
試料の粘性を測定する場合の操作は次の通りであ
る。 The operation when measuring the viscosity of a sample using the parallel plate viscometer configured as described above is as follows.
まず、第４図に示す如く、シリンダ２５を取り
のぞき、４本の支脚４のうち穴２７に近い方の支
脚４の２本のうちのどちらかにとりつけてあるマ
イクロメータ保持具５６に装着されたマイクロメ
ータ５７を穴２７を貫通して平板２の下面ａにあ
て、このマイクロメータ５７の操作によつて平板
２の移動量に対するストレンゲージ３５の出力を
補正しておく。 First, as shown in FIG. 4, the cylinder 25 is removed and the micrometer holder 56 is attached to one of the two supporting legs 4 that are closer to the hole 27 among the four supporting legs 4. A micrometer 57 is passed through the hole 27 and applied to the lower surface a of the flat plate 2, and the output of the strain gauge 35 relative to the amount of movement of the flat plate 2 is corrected by operating the micrometer 57.
次に、第５図に示す如く、シリンダ２５内の空
間２８に試料を充填し、シリンダ２５を平板３の
穴２７に装入する。このときロツド１９が上昇し
ているからリンク部材１１はピン２１によつて押
上げられており、平板２は平板３と適当な間隔を
保つて保持されている。 Next, as shown in FIG. 5, the space 28 within the cylinder 25 is filled with a sample, and the cylinder 25 is inserted into the hole 27 of the flat plate 3. At this time, since the rod 19 is rising, the link member 11 is pushed up by the pin 21, and the flat plate 2 is held at an appropriate distance from the flat plate 3.
次に重錘１６を調整してバランスを保つた状態
にある平行移動機構６に重錘１５を装架する。こ
れで測定準備は完了する。 Next, the weight 15 is mounted on the parallel movement mechanism 6 in which the weight 16 is adjusted and balanced. The measurement preparation is now complete.
粘性測定の場合には、まず、握柄５８を操作し
てアーム２９を第５図に示す位置から第６図に示
す位置に旋回させると、これによつて押し棒５５
及びピストン２６が上昇し、空間２８内の試料が
平行平面ａ，ｂの間に押し出される。 In the case of viscosity measurement, first, the handle 58 is operated to swing the arm 29 from the position shown in FIG. 5 to the position shown in FIG.
Then, the piston 26 rises, and the sample in the space 28 is pushed out between the parallel planes a and b.
一方、アーム２９の旋回は旋回部材３２を時計
方向に回転させ、ストツパー２３が右方に移動
し、ストツパー２３の穴５１がロツド１９の直下
に来るから、ロツド１９及びピン２１が下降し、
平行移動機構６の拘束を解く。これによつてリン
ク部材７が自由の状態となり、重錘１５の重量を
もつて平板２は平板３に平行に押し下げられる。
これによつて平板２は下降して試料を押し拡げ
る。この平板２の下降量は測定装置３３で測定す
る。測定開始時にマイクロスイツチによつて得ら
れた電気信号によつて、時計を動作せしめ、任意
の所定時間後の下降量を計器によつて保持せし
め、あるいは所定の下降量、すなわち直径になつ
たときの時間を保持せしめる。この所定時間ある
いは所定厚みは装置の設計によつて任意の点まで
行うことが可能である。 On the other hand, the rotation of the arm 29 causes the rotation member 32 to rotate clockwise, the stopper 23 moves to the right, and the hole 51 of the stopper 23 comes directly below the rod 19, so the rod 19 and pin 21 descend.
Release the constraint on the parallel movement mechanism 6. As a result, the link member 7 becomes free, and the weight of the weight 15 pushes down the flat plate 2 parallel to the flat plate 3.
This causes the flat plate 2 to descend and spread the sample. The amount of descent of the flat plate 2 is measured by a measuring device 33. The clock is operated by the electrical signal obtained by the micro switch at the start of measurement, and the amount of descent after an arbitrary predetermined time is maintained by the meter, or when the amount of descent has reached the predetermined amount, that is, the diameter. to keep the time. This predetermined time or predetermined thickness can be set to any desired point depending on the design of the apparatus.
このように、この発明の平行板粘度計において
は、２枚の平行板の間に粘性液体の試料を入れ、
これに荷重をかけて押し拡げ、試料の厚みの変化
から経時的に変化する換算半径を求めて試料の粘
性を測定するものであるから、あらゆる種類の試
料について測定が可能であつて、試料が光不透過
性のものであることを要しない。しかも、粘性の
測定を自動的に行うことができ、したがつて、試
験員を長時間拘束する必要がなく、信頼性の高い
データを得ることができる。 In this way, in the parallel plate viscometer of the present invention, a viscous liquid sample is placed between two parallel plates,
The viscosity of the sample is measured by applying a load to it, pushing it apart, and determining the converted radius that changes over time based on changes in the thickness of the sample, making it possible to measure all kinds of samples. It does not need to be light-opaque. Moreover, the viscosity can be measured automatically, so there is no need to restrain the tester for a long time, and highly reliable data can be obtained.
なお、以上説明したこの発明の実施例では、平
行板の移動距離の測定、すなわち、試料の厚み変
化の測定に板ばねとストレンゲージを使用してい
るが、この他に差動トランスその他の接触型、非
接触型の変位検出装置を使用することができる。 In the embodiment of the present invention described above, a leaf spring and a strain gauge are used to measure the moving distance of the parallel plate, that is, to measure the change in the thickness of the sample. type, non-contact type displacement detection devices can be used.
第１図はこの発明の平行板粘度計における平行
平面間の試料の状態を示す説明図、第２図はこの
発明の一実施例に係る平行板粘度計の正面図、及
び第３図は第２図に示す平行板粘度計の平面図、
第４図はマイクロメーターによるストレンゲージ
出力の補正を行う状態を示す説明図、第５図は測
定準備完了時の状態を示す説明図、及び第６図は
測定時の状態を示す説明図である。
１……平行板粘度計、２……平板、３……平
板、６……平行移動機構、１５……重錘、１９…
…ロツド、２１……ピン、２４……試料装入装
置、２５……ピストン、３４……板ばね、３５…
…ストレンゲージ。
FIG. 1 is an explanatory diagram showing the state of a sample between parallel planes in a parallel plate viscometer of the present invention, FIG. 2 is a front view of a parallel plate viscometer according to an embodiment of the present invention, and FIG. A plan view of the parallel plate viscometer shown in Figure 2,
Fig. 4 is an explanatory diagram showing the state in which the strain gauge output is corrected by the micrometer, Fig. 5 is an explanatory diagram showing the state when preparation for measurement is completed, and Fig. 6 is an explanatory diagram showing the state at the time of measurement. . DESCRIPTION OF SYMBOLS 1... Parallel plate viscometer, 2... Flat plate, 3... Flat plate, 6... Parallel movement mechanism, 15... Weight, 19...
... Rod, 21 ... Pin, 24 ... Sample loading device, 25 ... Piston, 34 ... Leaf spring, 35 ...
…Strengage.
Claims (1)
平行に位置し前記平行を保つたまま相対変位し得
る平行平面と、前記平行平面のうちの一方の平面
を平行移動させる平行移動機構と、前記平行移動
機構にとりつけられていて前記平行平面を介して
前記試料に荷重を作用させる重錘と、ピストンを
有し前記ピストンの上昇によつて前記平行平面間
に前記試料を装入する試料装入装置と、回転変位
可能で前記回転変位により前記ピストンと当接し
て前記ピストンを前記上昇させ得るアームと、前
記平行移動機構を拘束する位置と前記拘束を解く
位置とに変位可能なロツドと、前記ロツドの前記
変位を拘束可能であつて前記アームの前記回転変
位によつて変位して前記拘束を解くストツパー
と、前記ストツパーの前記変位によつて入切する
計時装置のスイツチと、前記平行平面間の距離を
検出する検出装置とを備えることを特徴とする平
行板粘度計。1. Parallel planes that are located parallel to each other so as to be able to clamp and spread the sample, and that can be relatively displaced while maintaining the parallelism, and a translation mechanism that moves one of the parallel planes in parallel; A weight attached to the parallel movement mechanism and applying a load to the sample through the parallel plane; and a sample device having a piston and loading the sample between the parallel planes when the piston rises. an arm that is rotationally displaceable and that can come into contact with the piston and raise the piston by the rotational displacement; a rod that is movable between a position where the parallel movement mechanism is restrained and a position where the restraint is released; a stopper that is capable of restraining the displacement of the rod and is displaced by the rotational displacement of the arm to release the restraint; a switch for a timing device that is turned on and off by the displacement of the stopper; and the parallel plane. A parallel plate viscometer comprising: a detection device for detecting the distance between the parallel plate viscometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4478381A JPS57160045A (en) | 1981-03-27 | 1981-03-27 | Parallel plate type viscosity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4478381A JPS57160045A (en) | 1981-03-27 | 1981-03-27 | Parallel plate type viscosity meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57160045A JPS57160045A (en) | 1982-10-02 |
| JPH0248858B2 true JPH0248858B2 (en) | 1990-10-26 |
Family
ID=12700998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4478381A Granted JPS57160045A (en) | 1981-03-27 | 1981-03-27 | Parallel plate type viscosity meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57160045A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509298A (en) * | 1989-10-03 | 1996-04-23 | Cheema; Mandranjan S. | Apparatus and method for measuring visco-elastic characteristics of a sample |
| JP6351180B2 (en) * | 2012-07-09 | 2018-07-04 | サーモ エレクトロン サイエンティフィック インストルメンツ リミテッド ライアビリティ カンパニー | Electric path length variable cell for spectroscopic measurement |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4925999A (en) * | 1972-04-20 | 1974-03-07 |
-
1981
- 1981-03-27 JP JP4478381A patent/JPS57160045A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4925999A (en) * | 1972-04-20 | 1974-03-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57160045A (en) | 1982-10-02 |
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