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 Körper

Info

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
Application number
DE69029253T
Other languages
English (en)
Other versions
DE69029253T2 (de
Inventor
Takuo Sekita
Takashi Abe
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.)
Kureha Corp
Original Assignee
Kureha 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 Kureha Corp filed Critical Kureha Corp
Publication of DE69029253D1 publication Critical patent/DE69029253D1/de
Application granted granted Critical
Publication of DE69029253T2 publication Critical patent/DE69029253T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE69029253T 1989-12-28 1990-12-21 Verfahren zur Bestimmung des Standes einer Flüssigkeit in einem bewegten zylindrischen Körper Expired - Fee Related DE69029253T2 (de)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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