FR2447030A1 - METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM - Google Patents

METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM

Info

Publication number
FR2447030A1
FR2447030A1 FR8000905A FR8000905A FR2447030A1 FR 2447030 A1 FR2447030 A1 FR 2447030A1 FR 8000905 A FR8000905 A FR 8000905A FR 8000905 A FR8000905 A FR 8000905A FR 2447030 A1 FR2447030 A1 FR 2447030A1
Authority
FR
France
Prior art keywords
foam mixture
signals
transmitted
rise rate
signal
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.)
Granted
Application number
FR8000905A
Other languages
French (fr)
Other versions
FR2447030B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Publication of FR2447030A1 publication Critical patent/FR2447030A1/en
Application granted granted Critical
Publication of FR2447030B1 publication Critical patent/FR2447030B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/44—Resins; Plastics; Rubber; Leather
    • G01N33/442—Resins; Plastics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/60—Measuring, controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The foam mixture (4) is disposed in a vessel (2). The height of the foam mixture in the vessel (2) is measured by means of an ultrasonic transducer device (6). Ultrasonic signals are transmitted to the surface of the foam mixture (4) and the reflected signals are received in the ultrasonic transducer device (6). Signals corresponding to the propagation duration of these signals, and thus to the height of the foam mixture (4), are amplified by an amplifier (A) and transmitted to a recording device (R). The amplified signals are also transmitted to an integration device (I). The output signal of the integration device (I) directly corresponds to the rise rate of the foam mixture (4). The rise rate signal is compared with a standardised signal which is stored in a storage device (S). The result of the comparison is produced at the output of a comparator (C) and is visually displayed in another display device (R'). The process and the device permit automatic measurement of the rise rate and thus of the reactivity of the components of the foam mixture.
FR8000905A 1979-01-17 1980-01-16 METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM Granted FR2447030A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US416479A 1979-01-17 1979-01-17

Publications (2)

Publication Number Publication Date
FR2447030A1 true FR2447030A1 (en) 1980-08-14
FR2447030B1 FR2447030B1 (en) 1983-12-02

Family

ID=21709490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000905A Granted FR2447030A1 (en) 1979-01-17 1980-01-16 METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM

Country Status (4)

Country Link
CH (1) CH644692A5 (en)
DE (1) DE3001602A1 (en)
FR (1) FR2447030A1 (en)
NL (1) NL8000321A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499294A1 (en) * 1981-02-04 1982-08-06 Framatome Sa METHOD AND DEVICE FOR MONITORING THE CONTROL BARS OF A NUCLEAR REACTOR
EP1340977A2 (en) * 2002-02-28 2003-09-03 Bayer Ag Screening method for making and characterising polyurethane foams

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004683A1 (en) * 1990-02-15 1991-08-22 Egner Siegfried Flow out arrangement limiting water tank - has slider in outflow pipe positioned according to output of ultrasonic echo sounding level meter
JP3063792B2 (en) * 1991-06-25 2000-07-12 オリンパス光学工業株式会社 Ultrasonic liquid level measurement device
DE4243172A1 (en) * 1992-12-19 1994-06-30 Kleine Franz Maschf Determining ultrasonic device distance from ground
DE102013013386A1 (en) * 2013-08-10 2015-02-26 Format Messtechnik Gmbh Apparatus and method for detecting the expansion behavior of one-component plastic foams
DE102017215394A1 (en) * 2017-09-04 2019-03-07 Bayerische Motoren Werke Aktiengesellschaft Device for measuring and / or detecting a foaming behavior of a foam

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223964A (en) * 1962-06-27 1965-12-14 Stadlin Louis Ultrasonic material measuring and control system
FR1514156A (en) * 1966-11-08 1968-02-23 Realisations Ultrasoniques Sa Ultrasonic pulse reflection level meter
US3486377A (en) * 1966-02-08 1969-12-30 Electronique Appliquee Ultrasonic gauge system
US3985030A (en) * 1974-10-29 1976-10-12 William Mcgeoch & Company Ultrasonic acoustic pulse echo ranging system
US4000650A (en) * 1975-03-20 1977-01-04 Bindicator Company Method and apparatus for ultrasonic material level measurement
FR2354542A1 (en) * 1976-06-09 1978-01-06 Endress & Co G H METHOD AND DEVICE FOR MEASURING THE FILLING LEVEL OF A TANK, RESPECTIVELY OF THE HEIGHT OF A BULK MATERIAL ON A STORAGE SITE
FR2385085A1 (en) * 1977-03-25 1978-10-20 Sumitomo Metal Ind METHOD AND DEVICE FOR MEASURING SLAG SKIM USING A MICROWAVE LEVEL INDICATOR

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223964A (en) * 1962-06-27 1965-12-14 Stadlin Louis Ultrasonic material measuring and control system
US3486377A (en) * 1966-02-08 1969-12-30 Electronique Appliquee Ultrasonic gauge system
FR1514156A (en) * 1966-11-08 1968-02-23 Realisations Ultrasoniques Sa Ultrasonic pulse reflection level meter
US3985030A (en) * 1974-10-29 1976-10-12 William Mcgeoch & Company Ultrasonic acoustic pulse echo ranging system
US4000650A (en) * 1975-03-20 1977-01-04 Bindicator Company Method and apparatus for ultrasonic material level measurement
US4000650B1 (en) * 1975-03-20 1995-11-14 Endress Hauser Gmbh Co Method and apparatus for ultrasonic material level measurement
FR2354542A1 (en) * 1976-06-09 1978-01-06 Endress & Co G H METHOD AND DEVICE FOR MEASURING THE FILLING LEVEL OF A TANK, RESPECTIVELY OF THE HEIGHT OF A BULK MATERIAL ON A STORAGE SITE
FR2385085A1 (en) * 1977-03-25 1978-10-20 Sumitomo Metal Ind METHOD AND DEVICE FOR MEASURING SLAG SKIM USING A MICROWAVE LEVEL INDICATOR

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499294A1 (en) * 1981-02-04 1982-08-06 Framatome Sa METHOD AND DEVICE FOR MONITORING THE CONTROL BARS OF A NUCLEAR REACTOR
EP0057648A1 (en) * 1981-02-04 1982-08-11 Framatome Method and device for the inspection of nuclear reactor control rods
EP1340977A2 (en) * 2002-02-28 2003-09-03 Bayer Ag Screening method for making and characterising polyurethane foams
EP1340977A3 (en) * 2002-02-28 2004-05-12 Bayer MaterialScience AG Screening method for making and characterising polyurethane foams
US6840124B2 (en) 2002-02-28 2005-01-11 Bayer Aktiengesellschaft Screening process for the production and characterization of polyurethane foam materials

Also Published As

Publication number Publication date
DE3001602A1 (en) 1980-07-31
FR2447030B1 (en) 1983-12-02
CH644692A5 (en) 1984-08-15
NL8000321A (en) 1980-07-21

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse