FR2447030A1 - METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAM - Google Patents
METHOD AND APPARATUS FOR MEASURING THE INFLATION SPEED OF POLYMER FOAMInfo
- 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
Links
- 239000006260 foam Substances 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 title 1
- 239000000203 mixture Substances 0.000 abstract 6
- 230000010354 integration Effects 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000009257 reactivity Effects 0.000 abstract 1
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.
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)
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)
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)
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 |
-
1980
- 1980-01-16 CH CH36080A patent/CH644692A5/en not_active IP Right Cessation
- 1980-01-16 FR FR8000905A patent/FR2447030A1/en active Granted
- 1980-01-17 DE DE19803001602 patent/DE3001602A1/en not_active Withdrawn
- 1980-01-17 NL NL8000321A patent/NL8000321A/en not_active Application Discontinuation
Patent Citations (8)
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)
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 |