WO2004001391A1 - Procede de mesure de la viscosite de liquides et dispositif correspondant - Google Patents

Procede de mesure de la viscosite de liquides et dispositif correspondant Download PDF

Info

Publication number
WO2004001391A1
WO2004001391A1 PCT/RU2002/000311 RU0200311W WO2004001391A1 WO 2004001391 A1 WO2004001391 A1 WO 2004001391A1 RU 0200311 W RU0200311 W RU 0200311W WO 2004001391 A1 WO2004001391 A1 WO 2004001391A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
fluid
viscosity
zhidκοsτi
izmeρeniya
Prior art date
Application number
PCT/RU2002/000311
Other languages
English (en)
Russian (ru)
Inventor
Viktor Ivanovich Bezrukov
Vladimir Dmitrievich Spiridonov
Original Assignee
Viktor Ivanovich Bezrukov
Spiridonov Vladimir Dmitrievic
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to RU2000133351/28A priority Critical patent/RU2196317C2/ru
Application filed by Viktor Ivanovich Bezrukov, Spiridonov Vladimir Dmitrievic filed Critical Viktor Ivanovich Bezrukov
Priority to AU2002325417A priority patent/AU2002325417A1/en
Priority to PCT/RU2002/000311 priority patent/WO2004001391A1/fr
Publication of WO2004001391A1 publication Critical patent/WO2004001391A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/195—Ink jet characterised by ink handling for monitoring ink quality
    • 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
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/06—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0241—Drop counters; Drop formers

Definitions

  • the invention is not applicable to measuring equipment and may be used in electrically powered portable printers.
  • ⁇ ⁇ s ⁇ / s ⁇ u
  • ⁇ - force ⁇ eniya between sl ⁇ yami zhid ⁇ s ⁇ i, P - ⁇ l ⁇ schad s ⁇ i ⁇ asayuschi ⁇ sya sl ⁇ ev, ⁇ / ⁇ u - g ⁇ adien ⁇ s ⁇ s ⁇ i in ⁇ g ⁇ anichn ⁇ m sl ⁇ e or if ⁇ e ⁇ emescha ⁇ in zhid ⁇ s ⁇ i ⁇ las ⁇ in ⁇ u ⁇ a ⁇ alleln ⁇ ⁇ l ⁇ s ⁇ y s ⁇ en ⁇ e, ⁇ i ⁇ ass ⁇ yanii between ⁇ las ⁇ in ⁇ ami "and" less ⁇ g ⁇ anichn ⁇ g ⁇ layer, ⁇ ⁇ ⁇ / a.
  • the so-called rotary or drum viscosities are based; With this dynamic force of impact on one of the containers is taken into account.
  • the configuration of body fluids may be It is different, both the method and the method of measuring the friction force or unimportant viscosity, such as, for example, in (4).
  • This method has all the aforementioned drawbacks: load, complexity of automation. Larger duration.
  • the method allows filling (pumping) of the test fluid in the process, while the process is free of fluid and the process is fluid By itself, through a calibrated full glass channel with separate sizes.
  • the dynamic viscosity of the fluid is shared where ⁇ is the dynamic viscosity, to is the constant of the viscous viscosity, ⁇ is the density of the liquid, ⁇ is the time of fluid outflow.
  • ned ⁇ s ⁇ a ⁇ am ⁇ g ⁇ s ⁇ s ⁇ ba and us ⁇ ys ⁇ va izme ⁇ eniya vyaz ⁇ s ⁇ i zhid ⁇ s ⁇ i ( ⁇ inya ⁇ y ⁇ in ⁇ aches ⁇ ve ⁇ i ⁇ a) ⁇ n ⁇ si ⁇ sya g ⁇ m ⁇ zd ⁇ s ⁇ , sl ⁇ zhn ⁇ s ⁇ vs ⁇ aivaniya in ⁇ in ⁇ e ⁇ and sl ⁇ zhn ⁇ s ⁇ ⁇ i av ⁇ ma ⁇ izatsii ⁇ tsessa izme ⁇ eniya and ⁇ ayu ⁇ e znachi ⁇ eln ⁇ e v ⁇ emya izme ⁇ eniya.
  • the device that implements this method connects the capillary connected to the pipe, the pressure transducers and the pressure switch, the ⁇ ned ⁇ s ⁇ a ⁇ am fate ⁇ g ⁇ s ⁇ s ⁇ ba ⁇ n ⁇ si ⁇ sya sl ⁇ zhn ⁇ s ⁇ eg ⁇ ⁇ ealizatsii, ⁇ a ⁇ ⁇ a ⁇ ⁇ ebue ⁇ is ⁇ lz ⁇ vaniya na ⁇ yadu with di ⁇ man ⁇ me ⁇ m ⁇ e ⁇ e ⁇ ada pressure also ⁇ as ⁇ d ⁇ me ⁇ , ⁇ a ⁇ ⁇ avil ⁇ with ⁇ etsizi ⁇ nn ⁇ y me ⁇ ani ⁇ y, ⁇ y m ⁇ zhe ⁇ vn ⁇ si ⁇ ⁇ g ⁇ e ⁇ sh ⁇ s ⁇ i change ⁇ i fluid viscosity.
  • the purpose of the proposed technical solution is to automate the process of measuring the viscosity of liquids, for example, in the hydraulic system of electromycles
  • the receiver (battery) of the device is one of the walls that provides a special rubber membrane.
  • the device is optionally equipped with a plug-and-play alternate valve, for example, is electrically operated for
  • ⁇ ⁇ lichie ⁇ ⁇ i ⁇ a zhid ⁇ s ⁇ ⁇ d pressure im ⁇ ulsn ⁇ g ⁇ is ⁇ chni ⁇ a izby ⁇ chn ⁇ g ⁇ pressure na ⁇ ime ⁇ in nes ⁇ l ⁇ a ⁇ m ⁇ s ⁇ e ⁇ , ⁇ e ⁇ i ⁇ diches ⁇ i or ⁇ dn ⁇ a ⁇ n ⁇ ⁇ dae ⁇ sya in a ⁇ umulya ⁇ ( ⁇ esive ⁇ ) na ⁇ ime ⁇ ⁇ uzhinn ⁇ g ⁇ ⁇ i ⁇ a, ch ⁇ m ⁇ zhn ⁇ ⁇ assma ⁇ iva ⁇ ⁇ a ⁇ ⁇ tsess za ⁇ yad ⁇ i gid ⁇ avliches ⁇ y em ⁇ s ⁇ i and ⁇ m ⁇ is ⁇ di ⁇ sam ⁇ izv ⁇ lnaya ⁇ az ⁇ yad ⁇ a em ⁇ s ⁇ i che ⁇ ez ⁇ a ⁇ illya ⁇ ny ⁇ anal,
  • a slight pressure drop is measured, i.e. During the part of the transition between the two pressure levels. ⁇
  • a measurement of an automatic product is, for example, with a piezoelectrical pressure sensor and a measurable unit
  • the main informative option is the constant time, just a quick find.
  • it is necessary to ensure it in the C-chain, i.e. as a result of the pressure of the ⁇ -capillary ⁇ , the initial pressure drop process, i.e. liquids from the receiver (accumulator) through the capillary.
  • ⁇ a ⁇ im ⁇ b ⁇ az ⁇ m in ⁇ edl ⁇ zhenn ⁇ m av ⁇ ami s ⁇ s ⁇ be is ⁇ lzue ⁇ sya not ⁇ ezhim s ⁇ atsi ⁇ na ⁇ n ⁇ g ⁇ is ⁇ echeniya zhid ⁇ s ⁇ i and nes ⁇ atsi ⁇ na ⁇ ny, ⁇ e ⁇ e ⁇ dny ⁇ tsess in tse ⁇ i ⁇ esive ⁇ a and ⁇ a ⁇ illya ⁇ a, ⁇ ichem d ⁇ lzhny che ⁇ ed ⁇ va ⁇ sya ⁇ tsessy za ⁇ yad ⁇ i and ⁇ az ⁇ yad ⁇ i ⁇ esive ⁇ a, ⁇ a ⁇ gid ⁇ avliches ⁇ y em ⁇ s ⁇ i ( ⁇ a ⁇ va ⁇ ian ⁇ - ⁇ dn ⁇ a ⁇ naya za ⁇ yad ⁇ a- ⁇ az ⁇ yad ⁇ a) and i
  • a pressure sensor is introduced in the circuit, for example, a pressure-resistant type. Moreover, at the same time the discharge (discharge) is caused by a change in the rate of pressure drop, even at the same time when there is a large amount of discharge, i.e. Observe the pressure drop between the two preset levels at different parts of one of the other components. As we will be shown in the application materials, while automatically measuring the viscosity, it takes only a few or tens of milliseconds, which are unavailable.
  • ⁇ v ⁇ emya is ⁇ y ⁇ any ⁇ edl ⁇ zhenny ⁇ s ⁇ s ⁇ ba izme ⁇ eniya and us ⁇ ys ⁇ va for izme ⁇ eniya vyaz ⁇ s ⁇ i zhid ⁇ s ⁇ i (vis ⁇ zime ⁇ a) is ⁇ lz ⁇ valsya mal ⁇ gaba ⁇ i ⁇ ny memb ⁇ anny nas ⁇ s with ⁇ b ⁇ a ⁇ nymi ⁇ la ⁇ anami and ele ⁇ magni ⁇ nym ⁇ iv ⁇ d ⁇ m, mal ⁇ gaba ⁇ i ⁇ ny memb ⁇ anny izme ⁇ i ⁇ elny ⁇ esive ⁇ as ⁇ l ⁇ s ⁇ y ⁇ ame ⁇ y, ⁇ dna of s ⁇ en ⁇ ⁇ y ⁇ eds ⁇ avlena ⁇ ezin ⁇ v ⁇ y memb ⁇ an ⁇ y, da ⁇ chi ⁇ pressure based ⁇ ez ⁇ ezis ⁇ ivn ⁇ g ⁇
  • Fig. 4 the waveforms of the voltages of the active device when measuring the viscosity of the test fluid are shown.
  • ⁇ a ⁇ ig.4a ⁇ azhen ⁇ na ⁇ yazhenie, ⁇ davaem ⁇ e on ele ⁇ magni ⁇ ny ⁇ iv ⁇ d nas ⁇ sa, and ⁇ sh.4b, 4c - na ⁇ yazheniya ⁇ e ⁇ e ⁇ dny ⁇ ⁇ tsess ⁇ v, snimaemzh with ⁇ ez ⁇ ezis ⁇ ivn ⁇ g ⁇ pressure da ⁇ chi ⁇ a s ⁇ ve ⁇ s ⁇ venn ⁇ ⁇ i ⁇ e ⁇ i ⁇ diches ⁇ m and ⁇ dn ⁇ a ⁇ n ⁇ m (im ⁇ ulsn ⁇ m) ⁇ ezhima ⁇ .
  • the viscosity of the liquid is unambiguous, it is constant at a constant pressure drop, i.e. between the pressure drop and the pressure drop between the two pressure levels, for example, at the maximum pressure value.
  • the actual setting for measuring viscosity since it was correct, the first pressure level was at a maximum value of 0.1%, and the second value at a value of 0, was at 0. This follows from the oscillograms, for measuring the fall, and, consequently, viscosity, it takes 15 ms.
  • the fast pressure sensor used, and also the microcircuit circuit for measuring the time of the pressure drop, successfully solves this problem.
  • ⁇ is the measured time of the intermediate process between two preset pressure levels.
  • first pressure and second pressure level between which the drop is measured, it is absent.
  • these levels are chosen based on the requirements of the speed of the measurements, the frequency of the pressure pulses. taking into account the convenience of the valves, the possibility of alternatives in hydraulic systems, the requirements for the measurements of pressure and the time between them. For example, as can be seen from Fig. 5, to increase the range of measurable viscosities without replacing the pressure channels at an increased pressure increase, it is necessary to increase the pressure increase.
  • Fig. 5 shows an experimentally removed oscillogram at the output of a suitable viscous sample when changing viscosity of a base fluid with a change in viscosity.
  • ⁇ a ⁇ ig.6 ivedena zavisim ⁇ s ⁇ between v ⁇ emenami ⁇ ( ⁇ ) is ⁇ echeniya m ⁇ delny ⁇ zhid ⁇ s ⁇ ey, zame ⁇ enny ⁇ with ⁇ m ⁇ schyu vis ⁇ zime ⁇ a ⁇ PZH-2 ⁇ a ⁇ ⁇ lib ⁇ v ⁇ chn ⁇ g ⁇ ⁇ aza ⁇ elya vyaz ⁇ s ⁇ i and v ⁇ emenem ⁇ g ( ⁇ ), s ⁇ ve ⁇ s ⁇ vuyuschem pressure s ⁇ adu in ⁇ edl ⁇ zhenn ⁇ m vis ⁇ zime ⁇ e u ⁇ vnyami pressure between 160 and 80 ⁇ Pa, corresponding figure 5.
  • the indications of the related viscosimetry are linearly related to the indications of the viscous visibility.
  • ⁇ a ⁇ im ⁇ b ⁇ az ⁇ m quantities: ⁇ s ⁇ yannaya v ⁇ emeni ⁇ ⁇ e ⁇ , v ⁇ emya s ⁇ ada ⁇ and vyaz ⁇ st ⁇ associated with d ⁇ ug d ⁇ ug ⁇ m lineyn ⁇ and i ⁇ ⁇ dnu che ⁇ ez d ⁇ uguyu m ⁇ zhn ⁇ ⁇ dn ⁇ znachn ⁇ vy ⁇ azi ⁇ and ⁇ edeli ⁇ , and ch ⁇ is ⁇ lzue ⁇ sya in ⁇ edl ⁇ zhenn ⁇ m s ⁇ s ⁇ be izme ⁇ eniya vyaz ⁇ s ⁇ i.
  • the proposed method of measuring the viscosity and the device implements it more efficiently with a higher accuracy (an error of no more than a unit of speed), an acceleration of 5 Every time you control, measure and adjust (stabilize) the most important print parameter is viscosity.
  • ⁇ a based ⁇ edl ⁇ zhenn ⁇ g ⁇ iz ⁇ b ⁇ e ⁇ eniya m ⁇ zhn ⁇ s ⁇ zda ⁇ range vis ⁇ zime ⁇ v ⁇ a ⁇ ⁇ delny ⁇ sam ⁇ s ⁇ ya ⁇ elny ⁇ ⁇ ib ⁇ v with b ⁇ lshimi dia ⁇ az ⁇ nami izme ⁇ eny, ⁇ ab ⁇ ayuschi ⁇ in ⁇ ezhime ⁇ din ⁇ chny ⁇ im ⁇ uls ⁇ v, ch ⁇ ⁇ zv ⁇ li ⁇ av ⁇ ma ⁇ izi ⁇ va ⁇ and us ⁇ i ⁇ ⁇ ud ⁇ em ⁇ ie ⁇ livye ⁇ tsessy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Ink Jet (AREA)

Abstract

L'invention concerne des équipements de mesure et peut s'utiliser dans des imprimantes de marquage électriques à jet d'encre. Selon le procédé, pendant la mesure de la viscosité du liquide dans un réservoir, son écoulement dudit réservoir à travers un canal capillaire et la mesure des paramètres d'écoulement permettant de déterminer la viscosité du liquide, le liquide est pompé dans un récepteur (accumulateur) au moyen d'une source de pression par impulsions, et pendant l'écoulement du liquide à travers le canal capillaire on mesure le temps de la chute de pression entre deux niveaux de pression, qui permet de déterminer la viscosité du liquide. Le dispositif comprend un réservoir, un récepteur (accumulateur) et un capteur de pression disposés entre la source de pression et le canal capillaire, le capteur de pression étant relié au dispositif de mesure de chute de pression. Dans le récepteur (accumulateur) du dispositif une des parois se présente comme une membrane en caoutchouc. En outre, le dispositif peut comprendre une soupape commandée branchée en séquence avec le canal capillaire, par exemple, une soupape de type à électro-aimants, qui permet de brancher le dispositif au moment voulu, par exemple, avec la périodicité désirée.
PCT/RU2002/000311 2000-12-28 2002-06-25 Procede de mesure de la viscosite de liquides et dispositif correspondant WO2004001391A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2000133351/28A RU2196317C2 (ru) 2000-12-28 2000-12-28 Способ измерения вязкости жидкости и устройство для его осуществления
AU2002325417A AU2002325417A1 (en) 2002-06-25 2002-06-25 Method for measuring fluid viscosity and device for carrying out said method
PCT/RU2002/000311 WO2004001391A1 (fr) 2000-12-28 2002-06-25 Procede de mesure de la viscosite de liquides et dispositif correspondant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2000133351/28A RU2196317C2 (ru) 2000-12-28 2000-12-28 Способ измерения вязкости жидкости и устройство для его осуществления
PCT/RU2002/000311 WO2004001391A1 (fr) 2000-12-28 2002-06-25 Procede de mesure de la viscosite de liquides et dispositif correspondant

Publications (1)

Publication Number Publication Date
WO2004001391A1 true WO2004001391A1 (fr) 2003-12-31

Family

ID=32314172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2002/000311 WO2004001391A1 (fr) 2000-12-28 2002-06-25 Procede de mesure de la viscosite de liquides et dispositif correspondant

Country Status (2)

Country Link
RU (1) RU2196317C2 (fr)
WO (1) WO2004001391A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110699A1 (fr) 2010-03-11 2011-09-15 Tifell Electro Solar Sintens, S.A. Viscosimètre et procédé de détermination de la viscosité d'un fluide
EP2378265A3 (fr) * 2010-04-14 2015-08-12 Ortho-Clinical Diagnostics, Inc. Procédé d'évaluation de la viscosité
US11940364B2 (en) * 2021-03-08 2024-03-26 Honda Motor Co., Ltd. Viscosity measuring system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2448246C1 (ru) * 2010-08-10 2012-04-20 Открытое акционерное общество "Всероссийский нефтегазовый научно-исследовательский институт имени академика А.П. Крылова" (ОАО "ВНИИнефть") Устройство для исследования пластовой нефти (pvt)
RU2569556C1 (ru) * 2014-09-22 2015-11-27 Феликс Эргардович Гофман Способ доставки проб радиоактивных растворов и устройство для его осуществления (варианты)
CN111665168B (zh) * 2019-03-07 2023-05-23 中国石油化工股份有限公司 压力脉冲条件下流体粘度的检测装置及方法
RU197020U1 (ru) * 2019-12-27 2020-03-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") Устройство для измерения вязкости

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1323919A1 (ru) * 1986-03-17 1987-07-15 Украинский Институт Инженеров Водного Хозяйства Устройство дл определени кинематической в зкости жидкостей
SU1543296A1 (ru) * 1988-02-29 1990-02-15 Алма-Атинское Специальное Конструкторско-Технологическое Бюро Нестандартизированных Радиоизотопных И Других Средств Автоматизированных Систем Управления Технологическими Процессами Легкой Промышленности Устройство дл измерени в зкости жидкости
US5331843A (en) * 1992-06-03 1994-07-26 Haake Medingen Gmbh Capillary viscometer apparatus for an uncomplicated determination of flow characteristics of fluent materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1323919A1 (ru) * 1986-03-17 1987-07-15 Украинский Институт Инженеров Водного Хозяйства Устройство дл определени кинематической в зкости жидкостей
SU1543296A1 (ru) * 1988-02-29 1990-02-15 Алма-Атинское Специальное Конструкторско-Технологическое Бюро Нестандартизированных Радиоизотопных И Других Средств Автоматизированных Систем Управления Технологическими Процессами Легкой Промышленности Устройство дл измерени в зкости жидкости
US5331843A (en) * 1992-06-03 1994-07-26 Haake Medingen Gmbh Capillary viscometer apparatus for an uncomplicated determination of flow characteristics of fluent materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110699A1 (fr) 2010-03-11 2011-09-15 Tifell Electro Solar Sintens, S.A. Viscosimètre et procédé de détermination de la viscosité d'un fluide
EP2378265A3 (fr) * 2010-04-14 2015-08-12 Ortho-Clinical Diagnostics, Inc. Procédé d'évaluation de la viscosité
US11940364B2 (en) * 2021-03-08 2024-03-26 Honda Motor Co., Ltd. Viscosity measuring system

Also Published As

Publication number Publication date
RU2196317C2 (ru) 2003-01-10

Similar Documents

Publication Publication Date Title
US7917313B2 (en) Method for monitoring a fluid transfer process
CN1920575B (zh) 用于选择液体吸移参数的方法
US10436692B2 (en) Measuring arrangement and method for measuring the density of flowable media
JP6042803B2 (ja) 携帯型粘度計
CN104768764B (zh) 液位感测装置以及将该装置用于喷墨打印系统的方法
US8656792B2 (en) Pipette device having a throttle point in the pipette duct
CN201628636U (zh) 一种精确取液计量装置
CN105372150A (zh) 一种油藏动态毛管力曲线的测定方法及设备
EP3376182A1 (fr) Système et procédé de distribution de fluide
WO2004001391A1 (fr) Procede de mesure de la viscosite de liquides et dispositif correspondant
EP3043156A1 (fr) Appareil et procédé permettant de distribuer ou d'aspirer un fluide
CN103728083A (zh) 压力测定装置以及液体处理装置
DE69827952D1 (de) Mikrovolumenfluessigkeitshandhabungssystem
EP0670476A1 (fr) Détecteur de fluide
US10830681B2 (en) Method and measuring apparatus for determining compressibility of a flowing fluid
JP2021032900A (ja) 液体媒体を供給するための装置および方法
KR101998395B1 (ko) 초고압용기 반복 가압 시험용 고속 대용량 유량 측정장치
CN104981686A (zh) 流体成分分析装置以及方法
US20220323982A1 (en) Dosing device and method of dosing liquid media
CN102506950B (zh) 一种检测电磁泵自由流量和反压流量的装置及检测方法
US7096710B2 (en) Method for monitoring the operational capability of a transport device and liquid transport device
CN105987727A (zh) 一种液体流量测量装置
EP0065831A2 (fr) Procédé et dispositif de détermination de la viscosité d'un échantillon de fluide par comparaison à celle d'un fluide de référence
US20210293234A1 (en) Reciprocating piston pump
GB2513310A (en) Determination of interfacial or surface tension

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BG BR CA CN CR CU CZ DZ EE GE HU ID IL IN JP KR KZ LT LV MX PL RO SG SK TR UA US UZ VN YU ZA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP