CS51392A3 - Process and apparatus for determining bubbles in pressure liquid feedingsystems - Google Patents

Process and apparatus for determining bubbles in pressure liquid feedingsystems Download PDF

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Publication number
CS51392A3
CS51392A3 CS92513A CS51392A CS51392A3 CS 51392 A3 CS51392 A3 CS 51392A3 CS 92513 A CS92513 A CS 92513A CS 51392 A CS51392 A CS 51392A CS 51392 A3 CS51392 A3 CS 51392A3
Authority
CS
Czechoslovakia
Prior art keywords
signal
time interval
pressure
signals
output
Prior art date
Application number
CS92513A
Other languages
Czech (cs)
English (en)
Inventor
Stephen L Merkel
Original Assignee
Nordson Corp
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
Application filed by Nordson Corp filed Critical Nordson Corp
Publication of CS51392A3 publication Critical patent/CS51392A3/cs

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • 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
    • G01N11/08—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 measuring pressure required to produce a known flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
CS92513A 1991-02-22 1992-02-21 Process and apparatus for determining bubbles in pressure liquid feedingsystems CS51392A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/659,842 US5182938A (en) 1991-02-22 1991-02-22 Method and apparatus for detecting bubbles in pressurized liquid dispensing systems

Publications (1)

Publication Number Publication Date
CS51392A3 true CS51392A3 (en) 1992-10-14

Family

ID=24647055

Family Applications (1)

Application Number Title Priority Date Filing Date
CS92513A CS51392A3 (en) 1991-02-22 1992-02-21 Process and apparatus for determining bubbles in pressure liquid feedingsystems

Country Status (10)

Country Link
US (1) US5182938A (de)
EP (1) EP0499714B1 (de)
JP (1) JPH04324340A (de)
KR (1) KR100224517B1 (de)
AU (1) AU652700B2 (de)
CA (1) CA2057610C (de)
CS (1) CS51392A3 (de)
DE (1) DE69112805T2 (de)
ES (1) ES2078420T3 (de)
MX (1) MX9200740A (de)

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JP2725940B2 (ja) * 1992-03-03 1998-03-11 アロカ株式会社 分注装置
EP0599126B1 (de) * 1992-11-20 1998-04-15 Nordson Corporation Methode zum Überwachen und/oder abgeben von Material auf ein Substrat
US5556009A (en) * 1994-07-18 1996-09-17 Wagner Spray Tech Corporation Adjustable constant pressure caulk gun
US5715327A (en) * 1994-09-20 1998-02-03 Neopath, Inc. Method and apparatus for detection of unsuitable conditions for automated cytology scoring
US5566249A (en) * 1994-09-20 1996-10-15 Neopath, Inc. Apparatus for detecting bubbles in coverslip adhesive
US5537880A (en) * 1995-06-07 1996-07-23 Abbott Laboratories Automatic pipetting apparatus with leak detection and method of detecting a leak
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5723795A (en) * 1995-12-14 1998-03-03 Abbott Laboratories Fluid handler and method of handling a fluid
US5965828A (en) * 1995-12-14 1999-10-12 Abbott Laboratories Fluid handler and method of handling a fluid
US5915282A (en) * 1995-12-14 1999-06-22 Abbott Laboratories Fluid handler and method of handling a fluid
US6920400B2 (en) * 1998-05-01 2005-07-19 United Electric Controls Co. Method and apparatus for detecting a plugged port
CN1315877A (zh) 1998-08-31 2001-10-03 强生消费者公司 含刀片的电传送装置
JP4180244B2 (ja) 1999-04-16 2008-11-12 ジョンソン・アンド・ジョンソン・コンシューマー・カンパニーズ・インコーポレイテッド 内部センサを有する電気的な移動による送出装置系
ATE313805T1 (de) * 2001-03-09 2006-01-15 Hamilton Bonaduz Ag Verfahren und vorrichtung zur beurteilung eines flüssigkeitsdosierungsvorgangs
US20050048195A1 (en) * 2003-08-26 2005-03-03 Akihiro Yanagita Dispensing system and method of controlling the same
US7350423B2 (en) * 2004-01-14 2008-04-01 International Business Machines Corporation Real time usage monitor and method for detecting entrapped air
US7231805B2 (en) * 2004-11-03 2007-06-19 Nordson Corporation Bubble detection with temperature compensation
US9209956B2 (en) * 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
FR2894149B1 (fr) * 2005-11-16 2008-09-05 Eleph Ent Technology Procede de detection d'occlusion d'une tubulure pour appareil d'administration de liquides physiologiques
DE102005060862B3 (de) * 2005-12-20 2007-06-28 Stratec Biomedical Systems Ag Verfahren und Vorrichtung zur Beurteilung eines Dosiervorgangs
JP4753770B2 (ja) * 2006-04-06 2011-08-24 ベックマン コールター， インコーポレイテッド 分注装置における配管内の気泡の有無判定方法および分注装置
EP2031403B1 (de) 2007-08-27 2016-02-17 Roche Diagnostics GmbH Verfahren zur Überwachung eines Flüssigkeitsübertragungsprozesses
EP3575665B1 (de) 2011-08-10 2020-10-07 Milwaukee Electric Tool Corporation Fettpistole
EP2856088B1 (de) * 2012-05-31 2021-03-10 Siemens Healthcare Diagnostics Inc. Echtzeitdetektion kurzer atemzüge unter verwendung eines drucksignals
US9847265B2 (en) 2012-11-21 2017-12-19 Nordson Corporation Flow metering for dispense monitoring and control
US9393586B2 (en) * 2012-11-21 2016-07-19 Nordson Corporation Dispenser and method of dispensing and controlling with a flow meter
US9579678B2 (en) 2015-01-07 2017-02-28 Nordson Corporation Dispenser and method of dispensing and controlling with a flow meter
CN105389814B (zh) * 2015-11-03 2017-12-08 浙江工业大学 一种用于气密性试验的气泡检测方法
US11768142B1 (en) * 2021-04-12 2023-09-26 Mehmet Arbatli Bubble detection system and method within a liquid flow of a pipe by sensing changes in local liquid pressure

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US3237634A (en) * 1966-03-01 Process control system
US3790042A (en) * 1970-09-15 1974-02-05 Pelam Inc Apparatus for regulating the amount of liquid administered per unit time
US3863244A (en) * 1972-06-14 1975-01-28 Lichtblau G J Electronic security system having improved noise discrimination
US3830095A (en) * 1973-06-26 1974-08-20 Atomic Energy Commission Gas void detector for liquid metal
US3898637A (en) * 1973-07-27 1975-08-05 Eugene B Wolstenholme Detection means for gas entering human blood system from extra-corporeal tubing
US3958092A (en) * 1975-01-27 1976-05-18 Hoover Jimmie N Apparatus for discriminating between liquid and gaseous flow
US4014206A (en) * 1975-03-31 1977-03-29 Akron City Hospital Apparatus and method for monitoring air emboli during extracorporeal circulation
US4072934A (en) * 1977-01-19 1978-02-07 Wylain, Inc. Method and apparatus for detecting a blockage in a vapor flow line
US4166936A (en) * 1978-02-01 1979-09-04 Delaval Turbine Inc. Viscosity-compensating flow switch
US4255088A (en) * 1979-06-14 1981-03-10 Valleylab, Inc. Liquid pumping system having means for detecting gas in the pump
US4215746A (en) * 1979-06-28 1980-08-05 W-K-M Wellhead Systems, Inc. Pressure responsive safety system for fluid lines
US4430886A (en) * 1982-01-15 1984-02-14 Nordson Corporation Method and apparatus for sensing clogged nozzle
US4662540A (en) * 1984-02-16 1987-05-05 Robotics Incorporated Apparatus for dispensing medium to high viscosity liquids with liquid flow detector and alarm
DE3414341A1 (de) * 1984-04-16 1985-10-17 ASEA GmbH, 6360 Friedberg Verfahren und anordnung zur feststellung des ungehinderten und blasenfreien stroemens einer unter druck stehenden fluessigkeit
US4779762A (en) * 1984-05-30 1988-10-25 Nordson Corporation Method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam
US4613059A (en) * 1985-05-15 1986-09-23 Nordson Corporation Pressure pulse masking circuit for a pressure monitor in a dispensing system
DE8607540U1 (de) * 1986-03-19 1987-09-24 D+P Dosier- Und Prueftechnik Gmbh, 7085 Bopfingen, De
US4922852A (en) * 1986-10-30 1990-05-08 Nordson Corporation Apparatus for dispensing fluid materials
US4842162A (en) * 1987-03-27 1989-06-27 Nordson Corporation Apparatus and method for dispensing fluid materials using position-dependent velocity feedback
JP2810456B2 (ja) * 1989-11-30 1998-10-15 サンスター技研株式会社 塗布材のビード切れ検出方法

Also Published As

Publication number Publication date
DE69112805D1 (de) 1995-10-12
EP0499714B1 (de) 1995-09-06
ES2078420T3 (es) 1995-12-16
CA2057610C (en) 1999-11-16
EP0499714A1 (de) 1992-08-26
AU1029892A (en) 1992-08-27
MX9200740A (es) 1992-09-01
US5182938A (en) 1993-02-02
KR100224517B1 (ko) 1999-10-15
AU652700B2 (en) 1994-09-01
DE69112805T2 (de) 1996-04-04
CA2057610A1 (en) 1992-08-23
JPH04324340A (ja) 1992-11-13
KR920016828A (ko) 1992-09-25

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