JPH01263533A - Rotary-type viscometer - Google Patents
Rotary-type viscometerInfo
- Publication number
- JPH01263533A JPH01263533A JP9274488A JP9274488A JPH01263533A JP H01263533 A JPH01263533 A JP H01263533A JP 9274488 A JP9274488 A JP 9274488A JP 9274488 A JP9274488 A JP 9274488A JP H01263533 A JPH01263533 A JP H01263533A
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- transmitter
- rotor
- rotating shaft
- receiver
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 9
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は例えば測定液中に浸漬されたロータの回転に
伴って発生する粘性摩擦トルクから測定液の粘度を測定
する回転式粘度計、特に粘性トルクの検出ならびにその
データの転送に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a rotational viscometer that measures the viscosity of a liquid to be measured from the viscous friction torque generated by the rotation of a rotor immersed in the liquid, particularly Concerning the detection of viscous torque and the transmission of its data.
［従来の技術］
第８図は従来の回転式粘度計の一例を示す原理図、１は
同期電動機、２は減速機、３は減速された回転軸、５は
コイルスプリングが用いられた弾性部材、７は測定液中
を゛所定の速度で回転するロータ７．８は粘度が測定さ
れる測定液、１１はロータに連結されたロータ軸、４４
は目盛板、４５は指針でおる。[Prior Art] Fig. 8 is a principle diagram showing an example of a conventional rotational viscometer, in which 1 is a synchronous motor, 2 is a speed reducer, 3 is a reduced rotation shaft, and 5 is an elastic member using a coil spring. , 7 is a rotor 7 that rotates at a predetermined speed in the measurement liquid; 8 is a measurement liquid whose viscosity is to be measured; 11 is a rotor shaft connected to the rotor; 44
is a scale plate, and 45 is a pointer.
従来の回転式粘度計は上記のように構成され、同期電動
機１の回転は減速機２により所定の回転速度に減速され
、弾性部材５を介してロータ軸１１に連結され測定液８
中に浸漬されたロータ７を回転させる。測定液Ｂ中にて
回転するロータ７はその外周面に測定液８による粘性摩
擦トルクが作用して、このトルクと弾性部材５との力が
平衡した状態で定常回転が行われる。The conventional rotational viscometer is constructed as described above, in which the rotation of the synchronous motor 1 is reduced to a predetermined rotational speed by the reducer 2, connected to the rotor shaft 11 via the elastic member 5, and connected to the rotor shaft 11 via the elastic member 5.
The rotor 7 immersed therein is rotated. The rotor 7 rotating in the measurement liquid B is subjected to viscous friction torque by the measurement liquid 8 on its outer peripheral surface, and steady rotation is performed in a state where this torque and the force of the elastic member 5 are balanced.
粘性摩擦トルクの大きさは同期電動機１の回転軸３に直
結された指針４５と、ロータ軸１１に取付けられた目盛
板４４との両者の相対変位角度にて示される。この変位
角度は目盛板４４が常時回転されている過程において目
視により読取りが行われ、この指示値を校正して粘度が
得られる。The magnitude of the viscous friction torque is indicated by the relative displacement angle between the pointer 45 directly connected to the rotating shaft 3 of the synchronous motor 1 and the scale plate 44 attached to the rotor shaft 11. This displacement angle is visually read while the scale plate 44 is constantly being rotated, and this indicated value is calibrated to obtain the viscosity.
［発明が解決しようとする課題］
上記のような従来の回転式粘度計では、粘度の測定は常
時回転している指針４５と目盛板４４との相対位置を測
定者の目視による目盛の読取りから行われるが、目盛板
４４と指針４５は静止することなく常時回転しているの
で読取り誤差が介入する。[Problems to be Solved by the Invention] In the conventional rotational viscometer as described above, viscosity is measured by measuring the relative position between the constantly rotating pointer 45 and the scale plate 44 by visually reading the scale by the measurer. However, since the scale plate 44 and pointer 45 do not stand still but are constantly rotating, reading errors occur.
また測定は測定者による指針の読取りによる人を介して
行われるので、常時自動的に粘度に関するデータを１ｑ
ることかできずデータの利用が制限されるという問題点
があった。In addition, since measurements are performed manually by the measurer reading the guideline, viscosity data is automatically collected at all times.
There was a problem in that the use of data was restricted.
この発明はかかる問題点を解決するためになされたもの
で、測定液の粘度測定を常に自動的に正確に行うため、
粘度計の固定部と回転部との間の電源電圧の給電と測定
データの転送が行える回転式粘度計を（ｑることを目的
とする。This invention was made to solve such problems, and in order to always automatically and accurately measure the viscosity of the measurement liquid,
The purpose is to create a rotational viscometer that can supply power supply voltage and transfer measurement data between the fixed part and rotating part of the viscometer.
またこの発明の別の発明は、上記目的に加えて測定者を
介しての目盛の読取りを行うことなく、測定液の粘性ト
ルクの測定が自動的に行われ常時出力される回転式粘度
計を得ることを目的とする。In addition to the above object, another invention of the present invention provides a rotational viscometer that automatically measures and constantly outputs the viscous torque of the liquid to be measured without the need for a measuring person to read the scale. The purpose is to obtain.
［課題を解決するための手段］
この発明に係る回転式粘度計は、同期電動機から減速さ
れた回転軸に同心状に取付けられた中空円筒状の第２ソ
レノイドと、第２ソレノイドと同心状に配設され相互に
電磁結合する第１ソレノイドと、第２ソレノイドの中空
部に設けられ測定データを送出する発信器と、発信器か
ら送出された測定データを受信する受信器を第１ンレノ
イドの中空部に設けたものである。[Means for Solving the Problems] A rotational viscometer according to the present invention includes a hollow cylindrical second solenoid concentrically attached to a rotating shaft decelerated from a synchronous motor, and a second solenoid concentrically attached to the second solenoid. A first solenoid that is arranged and electromagnetically coupled to each other, a transmitter that is installed in the hollow part of the second solenoid and that sends out measurement data, and a receiver that receives the measurement data that is sent out from the transmitter is installed in the hollow part of the first solenoid. It is set up in the department.
またこの発明の別の発明に係る回転式粘度計は、上記の
ものにおいて、ロータの回転角度に対応したコードが周
縁部に付与されてロータ軸に取付けられた回転板と、回
転板に付与されたコードを読取る読取りヘッドを有する
光学検出部が回転軸に設けられたものである。The rotational viscometer according to another aspect of the present invention includes a rotary plate attached to the rotor shaft with a code attached to the peripheral edge thereof and a code corresponding to the rotation angle of the rotor, and a rotary plate attached to the rotor shaft. An optical detection section having a reading head for reading the code is provided on the rotating shaft.
［作用１
この発明においては、固定部に設けられた第１ソレノイ
ドと回転部に設けられた第２ソレノイドは同心状に配設
され且つそれぞれの巻線は相互に電磁結合されるので、
固定部から回転部へ交流電力が供給される。[Operation 1] In this invention, the first solenoid provided in the fixed part and the second solenoid provided in the rotating part are arranged concentrically, and their respective windings are electromagnetically coupled to each other, so that
AC power is supplied from the fixed part to the rotating part.
更にそれぞれの中空部に発信器と受信器が設けられて、
回転部に搭載された検出回路は上記給電により作動し、
測定されたデータは第２ソレノイドの中空部に設けられ
た発信器から第１ツレイドに設けられた受信器へデータ
転送が行われ、固定部において測定データが得られる。Furthermore, a transmitter and a receiver are provided in each hollow part,
The detection circuit mounted on the rotating part is activated by the above power supply,
The measured data is transferred from the transmitter provided in the hollow part of the second solenoid to the receiver provided in the first solenoid, and the measured data is obtained in the fixed part.
またこの発明の別の発明においては、測定液の粘性摩擦
トルクに応動するロータ軸に取付けられた回転板の周縁
部に、ロータの回転角度を示すコードが付与され、他方
回転軸には上記回転板に付与されたコードを読取る読取
りヘッドを有する光学検出部が設けられているので、測
定液の粘性摩擦トルクによるロータの変位量即ち粘性ト
ルクが常時測定できる。In another aspect of the present invention, a code indicating the rotation angle of the rotor is attached to the peripheral edge of a rotating plate attached to a rotor shaft that responds to the viscous friction torque of the measuring liquid, and the rotating shaft is provided with a code indicating the rotation angle of the rotor. Since an optical detection section having a reading head for reading the code given to the plate is provided, the amount of displacement of the rotor due to the viscous frictional torque of the measuring liquid, that is, the viscous torque can be constantly measured.
上記発明による発信器から受信器への粘性トルクの測定
データが自動的に転送されるので、測定液の粘度は常時
固定部において自動的に得ることができる。Since the viscous torque measurement data according to the above invention is automatically transferred from the transmitter to the receiver, the viscosity of the measurement liquid can be automatically obtained at the fixed part at all times.
［実施例］
本発明の一実施例を添付図面を参照して詳細に説明する
。[Example] An example of the present invention will be described in detail with reference to the accompanying drawings.
第１図はこの発明の一実施例を示す原理図でおり、
図において、１．２．３．５．７．８．１１は上記従来
の粘度計と同一で、４はロータ軸１１と係合して回転し
ロータ７の回転角度に関するコードが周縁部に付与され
た回転板、旦は回転軸３に取付けられる光学検出部、旦
は中空円筒状をなす第１ソレノイド、１Ωは第１ソレノ
イド旦と相互に電磁結合する中空円筒状をなす第２ソレ
ノイド、１７は第２ソレノイド１Ωの中空部に設けられ
測定データを送出する発信器、１８は第１ンレノイド旦
の中空部に設けられ発信器１７と相対して測定データを
受信する受信器、３７は光学検出部５内にて回転板４へ
向は投光する光源、３８は光学検出部５内にて光源３７
の投光により回転板４に付与されたコードを読取る読取
りヘッドを示している。FIG. 1 is a principle diagram showing an embodiment of the present invention. In the figure, 1.2.3.5.7.8.11 are the same as those of the conventional viscometer mentioned above, and 4 is connected to the rotor shaft 11. A rotary plate that rotates together with a code related to the rotation angle of the rotor 7 is attached to the periphery, an optical detection unit attached to the rotating shaft 3, a first solenoid having a hollow cylindrical shape, and 1Ω the first solenoid. 17 is a transmitter provided in the hollow part of the second solenoid and transmits measurement data; 18 is a transmitter provided in the hollow part of the first solenoid. 17 is a receiver that receives measurement data; 37 is a light source that projects light toward the rotary plate 4 within the optical detection section 5; 38 is a light source 37 within the optical detection section 5;
A reading head is shown which reads the code given to the rotary plate 4 by projecting light.
上記のとおり構成された回転式粘度計において、同期電
動機１の回転は減速機２にて減速され、回転軸３には第
２ソレノイド１Ωと光学検出部旦が取付けられ共に回転
される。In the rotational viscometer configured as described above, the rotation of the synchronous motor 1 is decelerated by the speed reducer 2, and the second solenoid 1Ω and the optical detection unit 3 are attached to the rotating shaft 3 and rotated together.
また、回転軸３には弾性部材５を介してロータ軸１１が
連結され、測定液８中に浸漬されるロータ７ならびに上
記光学検出部旦と係合するロータ７の回転角度を表示す
る回転板４が取付けられ回転軸３と同一速度にて回転す
る。A rotor shaft 11 is connected to the rotary shaft 3 via an elastic member 5, and a rotary plate displays the rotor 7 immersed in the measurement liquid 8 and the rotation angle of the rotor 7 engaged with the optical detection section 3. 4 is attached and rotates at the same speed as the rotating shaft 3.
第２図はソレノイドの一例を示す断面図で、９．１０．
１７．１８は第１図に示すとおりであり、１５−１と１
５−２は中空円筒状をなす巻線、１６は中空円筒状の磁
性材料よりなるコアである。それぞれコアー１６内に巻
線１５が設けられ、コアー１６の開口面は相互に向い合
い近接した距離に同心状に配置され第１ツレノド旦は固
定部へ設けられる。FIG. 2 is a sectional view showing an example of a solenoid, and 9.10.
17.18 are as shown in Figure 1, and 15-1 and 1
5-2 is a winding having a hollow cylindrical shape, and 16 is a core made of a hollow cylindrical magnetic material. A winding 15 is provided within each core 16, the open surfaces of the cores 16 facing each other and arranged concentrically at a close distance, and the first windings are provided on the fixed part.
粘度計が作動して回転する回転軸３に取付けられた第２
ソレノイドユΩは、第１ソレノイド旦の巻線１５−１が
交流励磁されると、その磁束は第２ソレノイド１Ωの巻
線１５−２と鎖交して電磁結合され、粘度計の作動に係
わりなく巻線１５−２に所定の交流電圧が誘起される。A second tube attached to the rotating shaft 3 that rotates when the viscometer is activated.
When the winding 15-1 of the first solenoid 1Ω is excited with alternating current, its magnetic flux interlinks with the winding 15-2 of the second solenoid 1Ω and is electromagnetically coupled, regardless of the operation of the viscometer. A predetermined AC voltage is induced in the winding 15-2.
また中空構造をなすそれぞれのソレノイドの中空部即ち
、第２ソレノイド１Ωには測定データを送出する例えば
発光ダイオードを用いた発信器１７が、第１ソレノイド
旦には送出された測定データを受信する光ダイオードが
用いられた受信器１８が設けられ、発信器１７から送出
される測定データは近接配置された受信器１８へ光学式
により直列伝送されて、第２ソレノイド１Ωから第１ソ
レノイド旦へ測定データの転送が行われる。Furthermore, in the hollow part of each solenoid having a hollow structure, that is, in the second solenoid 1Ω, there is a transmitter 17 using, for example, a light emitting diode, which transmits measurement data, and a transmitter 17, which uses a light emitting diode, is connected to the first solenoid. A receiver 18 using a diode is provided, and the measurement data sent from the transmitter 17 is optically serially transmitted to the receiver 18 placed in close proximity, and the measurement data is transmitted from the second solenoid 1Ω to the first solenoid 1Ω. The transfer will take place.
上記のとおり固定部にある第１ソレノイド９と回転部に
ある第２ソレノイド１Ωを近接配置することにより、粘
度計の作動時に第２ソレノイド１Ωの回転および静止に
係りなく、相互に巻線１５を介しての電源の給電および
発信器１７から受信器１８への測定データの転送が随時
行うことができる。By arranging the first solenoid 9 in the fixed part and the second solenoid 1Ω in the rotating part in close proximity to each other as described above, the winding 15 can be mutually connected when the viscometer is operated, regardless of whether the second solenoid 1Ω is rotating or stationary. The supply of power via the transmitter 17 and the transfer of measurement data from the transmitter 17 to the receiver 18 can take place at any time.
また発信器１７と受信器１８に超音波センサーを用いて
それぞれのソレノイドの中空部に配置すると、両者は近
接した距離にあるので小さいレベルの空中超音波を用い
た音響撮動により測定データの転送が行える。Furthermore, if an ultrasonic sensor is used for the transmitter 17 and receiver 18 and placed in the hollow part of each solenoid, since the two are close to each other, measurement data can be transferred by acoustic imaging using small-level aerial ultrasonic waves. can be done.
ツレノド相互の電磁結合により電源の給電が行われても
、電磁結合と音響１辰動とは異質のものであり相互干渉
は発生しない、従って小さな音響レベルで安定した測定
データの転送ができる。Even if power is supplied by mutual electromagnetic coupling between two nodes, electromagnetic coupling and acoustic one-stroke are different things, and mutual interference does not occur. Therefore, stable measurement data can be transferred with a small acoustic level.
第３図は測定データ検出の一例を示す上面図、第４図は
第３図の側面図を示し、
ロータ軸１１に設けられた回転板４に例えば透明な合成
樹脂材を用いてその周縁部に沿ってＭ系列のコードを付
与し、上記コードが付与された回転板４の両側に光源３
７と例えばＣ０Ｄ−次元イメージセンサを用いた読取り
ヘッド３８が相対して配置されるよう回転軸３に設けら
れた光学検出部旦に取付ける。FIG. 3 is a top view showing an example of measurement data detection, and FIG. 4 is a side view of FIG. A light source 3 is attached to both sides of the rotary plate 4 to which the code is attached.
7 and a reading head 38 using, for example, a C0D-dimensional image sensor, are mounted on the rotating shaft 3 so that they are arranged opposite to each other.
電球を用いた光源３７から回転板４に向は投光すると、
読取りヘッド３８の一次元イメージセンサは回転板４上
のコードを介してＭ系列コードが受光されこのコードを
読取ることによりロータ７の粘性トルクによる変位角度
のデータが得られる。When light is projected onto the rotating plate 4 from the light source 37 using a light bulb,
The one-dimensional image sensor of the reading head 38 receives the M series code via the code on the rotating plate 4, and by reading this code, data on the displacement angle of the rotor 7 due to the viscous torque can be obtained.
第５図は読取りヘッドに用いられる一次元イメージセン
サの回路図、第６図は一次元イメージセンサの動作波形
の一例を示す、
光ダイオードアレイ４５の光電変換部と、信号を読出す
ための走査レジスタ４６と、アドレススイッチ４７の転
送部より構成された一次元イメージセンサは、光ダイオ
ードアレイ４５は非常に小さいピッチで高集積されてお
り、またこのピッチと整合して回転板４上にＭ系列コー
ドが付与されている。コードの読取りは１０ビツトで行
えるので高分解能でロータ７の変位角度が正しく測定で
きる。FIG. 5 is a circuit diagram of a one-dimensional image sensor used in the reading head, and FIG. 6 shows an example of operating waveforms of the one-dimensional image sensor. The photoelectric conversion section of the photodiode array 45 and scanning for reading out signals. The one-dimensional image sensor is composed of a register 46 and a transfer section of an address switch 47. The photodiode array 45 is highly integrated with a very small pitch, and matching this pitch, an M-series array is arranged on the rotary plate 4. A code has been given. Since the code can be read in 10 bits, the displacement angle of the rotor 7 can be accurately measured with high resolution.
一次元イメージセンサにはトランスファパルス■、２相
クロツクパルス■、■、リセットパルス■が加えられて
転送部が作動し、順次光源３７の投光による回転板４に
付与されたコードを経た入射光量に応じて、ＰＮ整合さ
れた光ダイオードアレイ４５が感応しコードの読取りが
行われ、ビデオ出力端子へ時系列信号として出力される
。A transfer pulse ■, a two-phase clock pulse ■, ■, and a reset pulse ■ are applied to the one-dimensional image sensor to activate the transfer section, and the amount of incident light that passes through the code applied to the rotary plate 4 by light emission from the light source 37 is adjusted sequentially. In response, the PN-matched photodiode array 45 senses the code and reads the code, which is output as a time-series signal to the video output terminal.
回転板４に設けられたＭ系列コードの光学検出部旦によ
り読取られた角度は、ロータ７が測定液８の粘性摩擦ト
ルクにより変位したもので測定液８の粘度に比例する。The angle read by the M-series code optical detection unit provided on the rotary plate 4 is the displacement of the rotor 7 due to the viscous friction torque of the measuring liquid 8, and is proportional to the viscosity of the measuring liquid 8.
第７図はこの発明の一実施例を示す回路図で、図におい
て、６．９．１０．１５．１６．１７．１８．３７．３
８は上記実施例と同一でおり、２１は交流信号を発生す
る第１発信器、２２は増巾器、２３は第１ソレノイド旦
内の巻線１５−１の励磁回路、２２はＦＦ（フリップフ
ロップ回路）、２５は信号の極性を反転ささせるインバ
ータ、２７はシフトレジスタ、２８はカウンタ、２９は
ラッチ回路、３０はマイクロコンピュータ、３］は表示
回路、３３は同期電動機１にて駆動される回転部、且は
回転部３３に搭載される粘性トルクの検出回路、３５は
検出回路且への作動電圧を供給する電源回路、３６は検
出回路３４作動のタイミング信号を発生する第２発信器
、３９は測定データ送出のタイミング回路、４０は発信
器１７を作動させる駆動回路を示している。FIG. 7 is a circuit diagram showing an embodiment of the present invention.
8 is the same as the above embodiment, 21 is a first oscillator that generates an AC signal, 22 is an amplifier, 23 is an excitation circuit for the winding 15-1 in the first solenoid, and 22 is an FF (flip-flop). 25 is an inverter that inverts the polarity of the signal, 27 is a shift register, 28 is a counter, 29 is a latch circuit, 30 is a microcomputer, 3] is a display circuit, and 33 is driven by the synchronous motor 1. A viscous torque detection circuit mounted on the rotating section or the rotating section 33; 35, a power supply circuit that supplies operating voltage to the detection circuit; 36, a second oscillator that generates a timing signal for operating the detection circuit 34; Reference numeral 39 indicates a timing circuit for transmitting measurement data, and reference numeral 40 indicates a drive circuit for operating the transmitter 17.
上記のとおり構成された回転式粘度計の回路図において
、第１発信器２１の発生する交流信号により励磁回路２
３を介して第１ソレノイド旦の巻線１５−１が励磁され
、粘度計の回転軸３に係合された第２ソレノイドユΩの
巻線１５−２と電磁結合されて、電源回路３５から定電
圧の直流電圧が発生される。In the circuit diagram of the rotational viscometer configured as described above, the excitation circuit 2 is
3, the winding 15-1 of the first solenoid is excited, and is electromagnetically coupled to the winding 15-2 of the second solenoid Ω, which is engaged with the rotating shaft 3 of the viscometer. A direct current voltage is generated.
第２発信器３６は第１発信器２１と同期して高周波パル
スを発生し、カウンタ２８を経て読取りヘッド３８に用
いられる一次元イメージセンサのコード読取りの転送動
作のためのトランスファパルス■、２相クロツクパルス
■、■、リセットパルス■の各信号を発生する。The second oscillator 36 generates high-frequency pulses in synchronization with the first oscillator 21, and passes them through the counter 28 to a two-phase transfer pulse for the transfer operation of code reading of the one-dimensional image sensor used in the reading head 38. Generates clock pulses ■, ■, and reset pulse ■.
測定液８中に浸漬されたロータ７の外周面には回転時に
測定液８の粘性による粘性摩擦トルクが作用し、この粘
性トルクと弾性部材５との力が平衡しロータ軸１１に取
付けられた回転板４と回転軸３の光学検出部旦とは上記
平衡位置に整定され、両者の相対的な変位角度は粘性ト
ルクに比例する。A viscous friction torque due to the viscosity of the measuring liquid 8 acts on the outer circumferential surface of the rotor 7 immersed in the measuring liquid 8 during rotation, and this viscous torque and the force of the elastic member 5 are balanced, and the rotor 7 is attached to the rotor shaft 11. The rotating plate 4 and the optical detection portion of the rotating shaft 3 are set at the above-mentioned equilibrium position, and the relative displacement angle between the two is proportional to the viscous torque.
光学検出部旦の読取りヘッド３８により回転板４のＭ系
列コードが読出されて変位角度に相当する測定データが
得られる。測定データは増巾器２２を経て第１発信器２
１と同期したタイミングにて動作する駆動回路４０によ
り発信器１７から時系列信号として送出される。発信器
１７から送出された測定データは受信器１８にて受信さ
れる。The reading head 38 of the optical detection unit reads the M-sequence code of the rotary plate 4 to obtain measurement data corresponding to the displacement angle. The measurement data is sent to the first transmitter 2 via the amplifier 22.
The driving circuit 40 operates at a timing synchronized with 1 and sends out the signal from the oscillator 17 as a time-series signal. Measurement data sent from the transmitter 17 is received by the receiver 18.
読取りヘッド３８に用いられたＣＯＤにて光学的に読取
られ転送された測定データは、立上り波形が鈍いためＦ
Ｆ２４とインバータ２５からなる整形回路にて急峻な波
形に整形される。The measurement data optically read and transferred by the COD used in the reading head 38 has a dull rising waveform, so the F
A shaping circuit consisting of an F24 and an inverter 25 shapes the waveform into a steep waveform.
直列伝送されたＭ系列コードの測定データはシフトレジ
スタ２７にて並列データに変換されラ ・ッチ回路２９
にてラッチされて、８ビツトマイクロコンピユータ３０
へ入力され測定データがデータ変換されて粘度データと
して表示回路３１にて表示される。The serially transmitted M-series code measurement data is converted into parallel data by a shift register 27 and sent to a latch circuit 29.
The 8-bit microcomputer 30
The measured data is converted into data and displayed on the display circuit 31 as viscosity data.
上記のとおり、ロータ７を測定液８中に浸漬させて回転
式粘度計を作動させると、第１ソレノイド旦から第２ソ
レノイド１Ωの回転部へ給電されて検出回路且が作動し
、測定液８の粘性摩擦トルクによる回転板４と光学検出
部旦との角度変位は読取りヘッド３８にて読取られ、第
２ソレノイド１Ωの中空部に配設された発信器１７より
送出された測定データが第１ソレノイド旦の中空部に配
設された受信器１８にて受信され、マイクロコンピュー
タ３０にて粘度データに変換される。As mentioned above, when the rotor 7 is immersed in the measuring liquid 8 and the rotary viscometer is operated, power is supplied from the first solenoid to the second solenoid's 1Ω rotating part, the detection circuit is activated, and the measuring liquid 8 The angular displacement between the rotary plate 4 and the optical detection unit due to the viscous friction torque is read by the reading head 38, and the measurement data sent from the transmitter 17 disposed in the hollow part of the second solenoid 1Ω is transmitted to the first solenoid. The signal is received by a receiver 18 disposed in the hollow part of the solenoid, and converted into viscosity data by a microcomputer 30.
各種の測定液８に対してロータ７の形状やその回転速度
を選定することにより、常時粘度測定が実施できその結
果が表示される。By selecting the shape of the rotor 7 and its rotational speed for each type of liquid 8 to be measured, viscosity measurement can be carried out at all times and the results displayed.
また粘度データは常時提供できるので各種の流体製品の
品質管理などに利用できる。In addition, since viscosity data can be provided at all times, it can be used for quality control of various fluid products.
［発明の効果］
この発明は以上説明したとおり、中空円筒状をなす巻線
の中空部に発信器と受信器が互いに送受信できるように
設けられた第１ソレノイドと第２ソレノイドを同心状に
近接して配置する簡単な構造により、
励磁された第１ソレノイドは回転部に設けらてた第２ソ
レノイドと電磁結合されて電源が給電される。この給電
電源にて作動する回転部に搭載された検出回路にて得ら
れた測定データが発信器より受信器へ転送される。[Effects of the Invention] As described above, the present invention provides a method in which a first solenoid and a second solenoid, which are provided in a hollow part of a winding having a hollow cylindrical shape so that a transmitter and a receiver can transmit and receive signals to each other, are concentrically adjacent to each other. With the simple arrangement, the excited first solenoid is electromagnetically coupled to the second solenoid provided on the rotating part, and power is supplied. Measurement data obtained by a detection circuit mounted on a rotating part operated by this power supply is transferred from a transmitter to a receiver.
またこの発明の別の発明は、回転軸に取付けられた光学
検出部と回転軸に弾性部材を介して連結されたロータな
らびにこれに取付けられた回転板との相互の変位角度は
、回転板に付与されたコードを読取りヘッドにて読取る
ことにより測定される。Another invention of the present invention is that the mutual displacement angle between the optical detection section attached to the rotating shaft, the rotor connected to the rotating shaft via an elastic member, and the rotating plate attached to this is determined by the rotational plate. It is measured by reading the assigned code with a reading head.
従って測定液の粘性摩擦トルクによるロータの捩れ角デ
ータは常時自動的に高精度にて測定できる。Therefore, the torsion angle data of the rotor due to the viscous friction torque of the measuring liquid can be measured automatically and with high precision at all times.
しかも上記発明において発信器から受信器へ測定データ
の転送が行われデータ変換される。Furthermore, in the above invention, measurement data is transferred from the transmitter to the receiver and converted.
従って測定液の粘度が常に高精度にて自動的に測定され
、更に測定データの利用も有効に行えるという効果があ
る。Therefore, the viscosity of the liquid to be measured can always be automatically measured with high precision, and the measured data can also be effectively used.
第１図はこの発明の一実施例を示す原理図、第２図はソ
レノイドの一例を示す断面図、第３図は測定データ検出
の一例を示す上面図、第４図は第３図の側面図、第５図
は読取りヘッドに用いられる一次元イメージセンサの回
路図、第６図は一次元イメージセンサの動作波形の一例
、第７図はこの発明の一実施例を示す回路図、第８図は
従来の回転式粘度計の原理図である。
図において、１は同期電動機、２は減速機、３は回転軸
、４は回転板、５は弾性部材、旦は光学検出部、７はロ
ータ、８は測定液、旦は第１ソレノイド、ユΩは第２ソ
レノイド、１１はロータ軸、１５−１．１５−２は巻線
、１６はコア、１７は発信器、１８は受信器、且は検出
回路、３７は光源、３８は読取りヘッド、である。
なお、各図中同一符号は同一または相当部分を示す。
特許出願人 株式会社 東京計器
第１図
第２図
第３図
■トランス７７パルスタ！Ｉ５“］−］一一一一一−−
−−−−′−一第６図
第７図
第８図Fig. 1 is a principle diagram showing an embodiment of the present invention, Fig. 2 is a sectional view showing an example of a solenoid, Fig. 3 is a top view showing an example of measurement data detection, and Fig. 4 is a side view of Fig. 3. 5 is a circuit diagram of a one-dimensional image sensor used in a reading head, FIG. 6 is an example of an operation waveform of the one-dimensional image sensor, FIG. 7 is a circuit diagram showing an embodiment of the present invention, and FIG. The figure is a diagram of the principle of a conventional rotational viscometer. In the figure, 1 is a synchronous motor, 2 is a speed reducer, 3 is a rotating shaft, 4 is a rotating plate, 5 is an elastic member, 1 is an optical detection section, 7 is a rotor, 8 is a measuring liquid, 1 is a first solenoid, and 1 is a unit. Ω is the second solenoid, 11 is the rotor shaft, 15-1.15-2 is the winding, 16 is the core, 17 is the transmitter, 18 is the receiver or detection circuit, 37 is the light source, 38 is the read head, It is. Note that the same reference numerals in each figure indicate the same or corresponding parts. Patent applicant: Tokyo Keiki Co., Ltd. Figure 1 Figure 2 Figure 3 ■Transformer 77 pulse generator! I5"]-]11111--
-----'-1 Figure 6 Figure 7 Figure 8
Claims (5)
て連結されたロータ軸に測定液中に浸漬されたロータを
設け、回転軸とロータ軸との変位角度より粘度を測定す
る回転式粘度計において、 回転軸に同心状に取付けられた中空円筒状の第２ソレノ
イドと、該第２ソレノイドと同心状に配設され相互に電
磁結合する第１ソレノイドと、該第２ソレノイドの中空
部に設けられ測定データを送出する発信器と、該発信器
から送出された測定データを受信する該第１ソレノイド
の中空部に設けられた受信器とを備えたことを特徴とす
る回転式粘度計。(1) A rotary method in which a rotor immersed in a measuring liquid is installed on a rotor shaft connected to the decelerated rotating shaft of a synchronous motor via an elastic member, and the viscosity is measured from the displacement angle between the rotating shaft and the rotor shaft. In the viscometer, a hollow cylindrical second solenoid is attached concentrically to a rotating shaft, a first solenoid is arranged concentrically with the second solenoid and electromagnetically coupled to each other, and a hollow portion of the second solenoid is provided. A rotational viscometer comprising: a transmitter installed in the transmitter for transmitting measurement data; and a receiver installed in the hollow part of the first solenoid for receiving the measurement data transmitted from the transmitter. .
を用いたことを特徴とする特許請求の範囲第１項記載の
回転式粘度計。(2) The rotational viscometer according to claim 1, characterized in that a light emitting diode is used as the transmitter and a photodiode is used as the receiver.
ことを特徴とする特許請求の範囲第１項記載の回転式粘
度計。(3) The rotational viscometer according to claim 1, characterized in that an ultrasonic sensor is used for the transmitter and the receiver.
て連結されたロータ軸に測定波中に浸漬されたロータを
設け、回転軸とロータ軸との変位角度より粘度を測定す
る回転式粘度計において、 回転軸に同心状に取付けられた中空円筒状の第２ソレノ
イドと、該第２ソレノイドと同心状に配設され相互に電
磁結合する第１ソレノイドと、該第２ソレノイドの中空
部に設けられ測定データを送出する発信器と、該発信器
から送出された測定データを受信する該第１ソレノイド
の中空部に設けられた受信器とを備え、 ロータの回転角度に対応したコードが周縁部に付与され
ロータ軸に取付けられた回転板と、該回転板に付与され
たコードを読取る光学読取りヘッドを有する光学検出部
が上記回転軸に係合して設けられたことを特徴とする回
転式粘度計。(4) A rotary method in which a rotor immersed in measurement waves is installed on a rotor shaft connected to the decelerated rotating shaft of a synchronous motor via an elastic member, and the viscosity is measured from the displacement angle between the rotating shaft and the rotor shaft. In the viscometer, a hollow cylindrical second solenoid is attached concentrically to a rotating shaft, a first solenoid is arranged concentrically with the second solenoid and electromagnetically coupled to each other, and a hollow portion of the second solenoid is provided. A transmitter is provided in the hollow part of the first solenoid to receive the measurement data sent from the transmitter, and a code corresponding to the rotation angle of the rotor is provided. A rotary plate attached to the peripheral edge and attached to the rotor shaft, and an optical detection unit having an optical reading head for reading a code attached to the rotary plate are provided in engagement with the rotary shaft. Rotational viscometer.
いたことを特徴とする特許請求の範囲第４項記載の回転
式粘度計。(5) The rotational viscometer according to claim 4, characterized in that a one-dimensional image sensor is used in the optical reading head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9274488A JPH01263533A (en) | 1988-04-15 | 1988-04-15 | Rotary-type viscometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9274488A JPH01263533A (en) | 1988-04-15 | 1988-04-15 | Rotary-type viscometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01263533A true JPH01263533A (en) | 1989-10-20 |
Family
ID=14062925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9274488A Pending JPH01263533A (en) | 1988-04-15 | 1988-04-15 | Rotary-type viscometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01263533A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT500358A1 (en) * | 2004-05-24 | 2005-12-15 | Anton Paar Gmbh | ROTARY RHEOMETER BZW. viscometer |
| WO2009131185A1 (en) * | 2008-04-25 | 2009-10-29 | 国立大学法人東京大学 | Device for measuring viscosity/elasticity and method for measuring viscosity/elasticity |
| EP3534143A1 (en) * | 2018-03-01 | 2019-09-04 | Anton Paar GmbH | Rheometer |
| JP2019194586A (en) * | 2018-04-30 | 2019-11-07 | アントン パール ゲゼルシャフト ミット ベシュレンクテル ハフツングＡｎｔｏｎ Ｐａａｒ ＧｍｂＨ | Method for determining viscosity of material by using rotary viscometer |
| US10823743B1 (en) * | 2013-10-28 | 2020-11-03 | Ifirst Medical Technologies, Inc. | Methods of measuring coagulation of a biological sample |
-
1988
- 1988-04-15 JP JP9274488A patent/JPH01263533A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT500358A1 (en) * | 2004-05-24 | 2005-12-15 | Anton Paar Gmbh | ROTARY RHEOMETER BZW. viscometer |
| WO2009131185A1 (en) * | 2008-04-25 | 2009-10-29 | 国立大学法人東京大学 | Device for measuring viscosity/elasticity and method for measuring viscosity/elasticity |
| JP2009264982A (en) * | 2008-04-25 | 2009-11-12 | Univ Of Tokyo | Device and method for measuring viscosity/elasticity |
| US8365582B2 (en) | 2008-04-25 | 2013-02-05 | The University Of Tokyo | Device for measuring viscosity/elasticity and method for measuring viscosity/elasticity |
| US10823743B1 (en) * | 2013-10-28 | 2020-11-03 | Ifirst Medical Technologies, Inc. | Methods of measuring coagulation of a biological sample |
| EP3534143A1 (en) * | 2018-03-01 | 2019-09-04 | Anton Paar GmbH | Rheometer |
| JP2019194586A (en) * | 2018-04-30 | 2019-11-07 | アントン パール ゲゼルシャフト ミット ベシュレンクテル ハフツングＡｎｔｏｎ Ｐａａｒ ＧｍｂＨ | Method for determining viscosity of material by using rotary viscometer |
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