DE3887415D1 - Pegelmessung für Speichersilos. - Google Patents

Pegelmessung für Speichersilos.

Info

Publication number
DE3887415D1
DE3887415D1 DE88115190T DE3887415T DE3887415D1 DE 3887415 D1 DE3887415 D1 DE 3887415D1 DE 88115190 T DE88115190 T DE 88115190T DE 3887415 T DE3887415 T DE 3887415T DE 3887415 D1 DE3887415 D1 DE 3887415D1
Authority
DE
Germany
Prior art keywords
level measurement
storage silos
silos
storage
measurement
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
DE88115190T
Other languages
English (en)
Other versions
DE3887415T2 (de
Inventor
Thomas C Cournane
Cyril F Mcsweeney
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.)
Cti Celtek Electronics Inc Ville St-Laurent Qu
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE3887415D1 publication Critical patent/DE3887415D1/de
Application granted granted Critical
Publication of DE3887415T2 publication Critical patent/DE3887415T2/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
    • G01F23/284—Electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DE3887415T 1987-09-16 1988-09-16 Pegelmessung für Speichersilos. Expired - Fee Related DE3887415T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/097,057 US4807471A (en) 1987-09-16 1987-09-16 Level measurement for storage silos

Publications (2)

Publication Number Publication Date
DE3887415D1 true DE3887415D1 (de) 1994-03-10
DE3887415T2 DE3887415T2 (de) 1994-07-21

Family

ID=22260677

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3887415T Expired - Fee Related DE3887415T2 (de) 1987-09-16 1988-09-16 Pegelmessung für Speichersilos.

Country Status (4)

Country Link
US (1) US4807471A (de)
EP (1) EP0307930B1 (de)
CA (1) CA1291534C (de)
DE (1) DE3887415T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448222A (ja) * 1990-06-18 1992-02-18 Watanabe Kajirou レベル検出方法及びその装置
US5233352A (en) * 1992-05-08 1993-08-03 Cournane Thomas C Level measurement using autocorrelation
US5376888A (en) * 1993-06-09 1994-12-27 Hook; William R. Timing markers in time domain reflectometry systems
US5406842A (en) * 1993-10-07 1995-04-18 Motorola, Inc. Method and apparatus for material level measurement using stepped frequency microwave signals
US5440310A (en) * 1994-02-14 1995-08-08 Motorola, Inc. Bandwidth synthesized radar level measurement method and apparatus
US5554936A (en) * 1994-12-01 1996-09-10 Mohr; Charles L. Mixed fluid time domain reflectometry sensors
US5717337A (en) * 1996-01-16 1998-02-10 Kelly; John M. Time-domain reflectometer based measurement system
CA2182836C (en) * 1996-08-07 2000-07-25 Milltronics Ltd. Probe for use in time domain reflectometry
US5811677A (en) * 1996-10-07 1998-09-22 Bindicator Company Material interface level sensing
US6386055B1 (en) * 1998-01-06 2002-05-14 Endress +Hauser Gmbh +Co. Sensor apparatus for transmitting electrical pulses from a signal line into and out of a vessel to measure a process variable—in order to be more informative
US6144211A (en) * 1998-06-25 2000-11-07 Mohr; Charles L. Cross-channel probe system for time domain reflectometry detection of fluid flow
US6281688B1 (en) * 1998-06-25 2001-08-28 The United States Of America As Represented By The Secretary Of The Army Transmission line reflectometer using frequency-modulated continuous wave
EP1070941A1 (de) * 1999-07-23 2001-01-24 Endress + Hauser GmbH + Co. Vorrichtung zum Messen des Füllstandes in einem Behälter
CA2402379A1 (en) * 2000-02-17 2001-08-23 Paul Hendershott Bulk materials management apparatus and method
DE10043838A1 (de) * 2000-09-06 2002-04-04 Grieshaber Vega Kg Füllstandsmeßvorrichtung
US20030222654A1 (en) * 2001-11-30 2003-12-04 Furse Cynthia M. Cable testing, cable length, and liquid level determination system utilizing a standing wave reflectometer
CA2388324A1 (en) * 2002-05-31 2003-11-30 Siemens Milltronics Process Instruments Inc. Probe for use in level measurement in time domain reflectometry
KR100517305B1 (ko) * 2002-12-09 2005-09-27 손덕수 전송선을 이용한 자동차 연료 게이지
DE102004035757B3 (de) * 2004-07-23 2006-05-04 imko Intelligente Micromodule Köhler GmbH Anordnung zur Bestimmung der Höhe eines Flüssigkeitsstandes
US7592946B2 (en) * 2005-02-14 2009-09-22 Endress + Hauser Gmbh + Co. Kg Level measurement arrangement
DE102008016829A1 (de) * 2008-04-01 2009-10-08 KROHNE Meßtechnik GmbH & Co. KG Füllstandschalter und Sensorelement für einen Füllstandschalter
US8531304B2 (en) * 2008-04-04 2013-09-10 Osborne Industries Inc. Device and method for measuring material level in bin using flexible resistant members
DE202008006344U1 (de) 2008-05-08 2008-10-16 Sensorentechnologie Gettorf Gmbh Abschlussteil
DE102009060742A1 (de) * 2009-12-30 2011-07-07 NEGELE Messtechnik GmbH, 87743 Einrichtung zum Erkennen eines Pegelstandes
US9360360B2 (en) * 2012-12-06 2016-06-07 Osborne Industries Inc. System for measuring level of dry bulk material in container
DE102014114752A1 (de) * 2014-10-10 2016-04-14 Krohne S. A. S. Verfahren sowie Vorrichtung zur Füllstandsmessung
CN107782412A (zh) * 2016-08-30 2018-03-09 房玉安 全新的水位检测装置
CN107246901B (zh) * 2017-07-10 2023-06-30 太原师范学院 基于弦振动的煤仓料位检测系统及方法
US11703371B1 (en) 2020-04-06 2023-07-18 Devicesolutions Bin material measurement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474337A (en) * 1966-12-27 1969-10-21 Jackson & Church Electronics C System for sensing levels and electrical characteristics of fluent materials
US3572119A (en) * 1969-08-07 1971-03-23 Bendix Corp Fluid quantity indicating device
US3695107A (en) * 1970-06-01 1972-10-03 Hertz Carl H Method of measuring the level of a material in a tank, and an apparatus for practicing this method
US4135397A (en) * 1977-06-03 1979-01-23 Krake Guss L Level measuring system
US4307267A (en) * 1980-06-16 1981-12-22 Bell Telephone Laboratories, Incorporated Testing loaded transmission lines
US4359902A (en) * 1980-07-31 1982-11-23 Lawless James C Liquid level gauge
US4495807A (en) * 1983-02-24 1985-01-29 The United States Of America As Represented By The United States Department Of Energy Precision liquid level sensor
US4649713A (en) * 1984-05-21 1987-03-17 Bezek Donald J Microwave ice detector
US4621226A (en) * 1984-05-23 1986-11-04 Weinschel Engineering Co., Inc. Apparatus and method for determining an input electrical characteristic of a device under test

Also Published As

Publication number Publication date
EP0307930A3 (en) 1990-06-13
EP0307930B1 (de) 1994-01-26
EP0307930A2 (de) 1989-03-22
CA1291534C (en) 1991-10-29
DE3887415T2 (de) 1994-07-21
US4807471A (en) 1989-02-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CTI CELTEK ELECTRONICS INC., VILLE ST.-LAURENT, QU

8328 Change in the person/name/address of the agent

Free format text: BARDEHLE, PAGENBERG, DOST, ALTENBURG, FROHWITTER, GEISSLER & PARTNER PATENT- UND RECHTSANWAELTE, 81679 MUENCHEN

8381 Inventor (new situation)

Free format text: COURNANE, THOMAS C., WESTMOUNT, QUEBEC, CA MCSWEENEY, CYRIL F., WESTMOUNT, QUEBEC, CA

8328 Change in the person/name/address of the agent

Representative=s name: DERZEIT KEIN VERTRETER BESTELLT

8339 Ceased/non-payment of the annual fee