DE69029253D1 - Verfahren zur Bestimmung des Standes einer Flüssigkeit in einem bewegten zylindrischen Körper - Google Patents
Verfahren zur Bestimmung des Standes einer Flüssigkeit in einem bewegten zylindrischen KörperInfo
- Publication number
- DE69029253D1 DE69029253D1 DE69029253T DE69029253T DE69029253D1 DE 69029253 D1 DE69029253 D1 DE 69029253D1 DE 69029253 T DE69029253 T DE 69029253T DE 69029253 T DE69029253 T DE 69029253T DE 69029253 D1 DE69029253 D1 DE 69029253D1
- Authority
- DE
- Germany
- Prior art keywords
- determining
- liquid
- level
- cylindrical body
- moving cylindrical
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- G01F23/2961—Acoustic waves for discrete levels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/9125—Cooling of hollow articles of tubular films internally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92019—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92161—Volume or quantity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92314—Particular value claimed
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15095389 | 1989-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69029253D1 true DE69029253D1 (de) | 1997-01-09 |
DE69029253T2 DE69029253T2 (de) | 1997-03-27 |
Family
ID=15508039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69029253T Expired - Fee Related DE69029253T2 (de) | 1989-12-28 | 1990-12-21 | Verfahren zur Bestimmung des Standes einer Flüssigkeit in einem bewegten zylindrischen Körper |
Country Status (4)
Country | Link |
---|---|
US (1) | US5105661A (de) |
EP (1) | EP0436207B1 (de) |
JP (1) | JPH04118525A (de) |
DE (1) | DE69029253T2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5438868A (en) * | 1993-11-01 | 1995-08-08 | Zevex, Inc. | Noninvasive ultrasonic liquid level indicator |
IT1269723B (it) * | 1994-05-09 | 1997-04-15 | Tetra Brik Res Dev Spa | Metodo ed apparecchiatura per registrare un livello di contenuto |
FR2721711B1 (fr) * | 1994-06-24 | 1996-07-26 | Gec Alsthom Stein Ind | Dispositif de mesure de la quantité de charbon dans un broyeur à boulets. |
US5664699A (en) * | 1995-04-04 | 1997-09-09 | Simpson Technologies Corporation | Core sand preparation apparatus |
GB9522949D0 (en) * | 1995-11-09 | 1996-01-10 | M & A Packaging Serv Ltd | Fill level measuring |
US6336973B1 (en) * | 1997-08-05 | 2002-01-08 | Micron Technology, Inc. | Apparatus and method for modifying the configuration of an exposed surface of a viscous fluid |
US6013535A (en) * | 1997-08-05 | 2000-01-11 | Micron Technology, Inc. | Method for applying adhesives to a lead frame |
US6040205A (en) * | 1997-08-05 | 2000-03-21 | Micron Technology, Inc. | Apparatus and method for controlling the depth of immersion of a semiconductor element in an exposed surface of a viscous fluid |
US7117738B2 (en) * | 2003-10-02 | 2006-10-10 | Denso Corporation | Liquid level detecting apparatus |
US7615954B1 (en) * | 2005-01-05 | 2009-11-10 | Metropolitan Industries, Inc. | Density sensing, solid state, pump switching system |
US7360417B2 (en) * | 2005-01-10 | 2008-04-22 | Gems Sensors, Inc. | Fluid level detector |
US20070125162A1 (en) * | 2005-06-15 | 2007-06-07 | Ghazi Babak R | Wireless liquid-level measuring free pour spout |
US7607347B2 (en) * | 2006-03-07 | 2009-10-27 | Gems Sensors, Inc. | Fluid level detector |
US8850882B2 (en) * | 2008-06-20 | 2014-10-07 | Exxonmobil Research And Engineering Company | Method for measuring reactor bed level from active acoustic measurement and analysis |
CN102226707B (zh) * | 2011-03-30 | 2013-03-27 | 唐山钢铁集团微尔自动化有限公司 | 一种料仓料位测量装置 |
DE102012109308A1 (de) * | 2012-10-01 | 2014-04-03 | Endress + Hauser Flowtec Ag | Füllstandsüberwachungssystem und Durchflussmessgerät |
CN103604483B (zh) * | 2013-11-29 | 2017-01-11 | 国家电网公司 | 电力系统充油瓷套油位超声波测量方法 |
GB2527759A (en) * | 2014-06-30 | 2016-01-06 | Mobrey Ltd | Improvements in or relating to level detection |
DE102015101299A1 (de) * | 2015-01-29 | 2016-08-04 | Vorwerk & Co. Interholding Gmbh | Elektrisches Küchengerät |
US20180111345A1 (en) * | 2016-10-25 | 2018-04-26 | Robert L. Barnett | System and method for detecting the presence and/or measuring the quantity of liquid within a tire |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102301A (en) * | 1962-11-01 | 1963-09-03 | Du Pont | Melt level alarm |
US3377413A (en) * | 1964-05-15 | 1968-04-09 | Svenska Metallverken Ab | Process in the extrusion of films of thermoplastic material in tubular form and an arrangement for carrying out the process |
CA939501A (en) * | 1970-08-05 | 1974-01-08 | David A. Armstrong | Distance and thickness gauge |
US4203942A (en) * | 1973-01-08 | 1980-05-20 | Exxon Research & Engineering Co. | Process for tubular water-bath polypropylene films |
SE385408B (sv) * | 1973-03-21 | 1976-06-28 | Asea Ab | Sett att overvaka fyllnadsgraden i schakt o.d. for uppsamling av styckeformigt gods samt anordning for genomforande av settet |
US4302623A (en) * | 1979-11-19 | 1981-11-24 | Owens-Corning Fiberglass Corporation | Ultrasonic batch sensing apparatus for glass-melting furnaces |
US4679430A (en) * | 1983-03-30 | 1987-07-14 | United Kingdom Atomic Energy Authority | Ultrasonic liquid interface detector |
ATE49725T1 (de) * | 1983-09-28 | 1990-02-15 | Idemitsu Petrochemical Co | Verfahren zur herstellung von filmen oder folien aus thermoplastischem kunststoff. |
IT1187521B (it) * | 1985-01-09 | 1987-12-23 | Zanussi Zeltron Inst | Procedimento di misurazione del livello di un liquido tramite onde elastiche e dispositivo effettuante tale procedimento |
GB2177510A (en) * | 1985-07-01 | 1987-01-21 | Partridge Wilson And Company L | Detecting the presence or absence of a liquid |
DE3530747A1 (de) * | 1985-08-28 | 1987-03-05 | Stoeckert Instr Gmbh | Ultraschallsensor |
JPS6293608A (ja) * | 1985-10-21 | 1987-04-30 | Kawasaki Steel Corp | ロ−ルプロフイ−ル測定方法および装置 |
AU610366B2 (en) * | 1988-03-31 | 1991-05-16 | Idemitsu Petrochemical Co., Ltd. | Method of and apparatus for manufacturing biaxially oriented film |
-
1990
- 1990-11-30 JP JP2338867A patent/JPH04118525A/ja active Pending
- 1990-12-21 DE DE69029253T patent/DE69029253T2/de not_active Expired - Fee Related
- 1990-12-21 US US07/632,124 patent/US5105661A/en not_active Expired - Fee Related
- 1990-12-21 EP EP90125215A patent/EP0436207B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5105661A (en) | 1992-04-21 |
EP0436207A1 (de) | 1991-07-10 |
JPH04118525A (ja) | 1992-04-20 |
EP0436207B1 (de) | 1996-11-27 |
DE69029253T2 (de) | 1997-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |