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HUP0301521A2 - Eljárás és elrendezés töltési szint mérésére - Google Patents

Eljárás és elrendezés töltési szint mérésére

Info

Publication number
HUP0301521A2
HUP0301521A2 HU0301521A HUP0301521A HUP0301521A2 HU P0301521 A2 HUP0301521 A2 HU P0301521A2 HU 0301521 A HU0301521 A HU 0301521A HU P0301521 A HUP0301521 A HU P0301521A HU P0301521 A2 HUP0301521 A2 HU P0301521A2
Authority
HU
Hungary
Prior art keywords
tuning fork
frequency
excitation circuit
bandpass filter
input
Prior art date
Application number
HU0301521A
Other languages
English (en)
Inventor
Adrian Frick
Felix Raffalt
Original Assignee
Vega Grieshaber Kg
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 Vega Grieshaber Kg filed Critical Vega Grieshaber Kg
Publication of HUP0301521A2 publication Critical patent/HUP0301521A2/hu
Publication of HUP0301521A3 publication Critical patent/HUP0301521A3/hu
Publication of HU227096B1 publication Critical patent/HU227096B1/hu

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
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Gyroscopes (AREA)

Abstract

A találmány tárgya eljárás és elrendezés töltési szint mérésére,amelyhez például sorba kapcsolt bemeneti erősítőt (2), sávszűrőt (3)és végerősítőt (4) tartalmazó gerjesztő áramkör által rezgésbe hozottrezgővillát (1) alkalmaznak. A rezgővillához (1) a gerjesztőáramkörrel a rezgővilla (1) alapfrekvenciáját közlő jellemző elem (6)van hozzárendelve. A jellemző elem (6) a rezgővilla (1)alapfrekvenciáját frekvenciakiértékelő áramkör (5) állító bemenetéhezis juttatja, amelynek bemenete a gerjesztő áramkör kimenetével vanösszekötve. Így mind a sávszűrő (3), mind a frekvenciakiértékelőáramkör (5) paramétereit optimálisan a rezgővilla (1)alapfrekvenciájára állítják be. Ó
HU0301521A 2000-11-14 2001-11-13 Method and system for measuring levels HU227096B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056353A DE10056353A1 (de) 2000-11-14 2000-11-14 Verfahren und Anordnung zur Füllstandsmessung
PCT/EP2001/013106 WO2002040950A1 (de) 2000-11-14 2001-11-13 Verfahren und anordnung zur füllstandsmessung

Publications (3)

Publication Number Publication Date
HUP0301521A2 true HUP0301521A2 (hu) 2003-09-29
HUP0301521A3 HUP0301521A3 (en) 2005-10-28
HU227096B1 HU227096B1 (en) 2010-07-28

Family

ID=7663233

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0301521A HU227096B1 (en) 2000-11-14 2001-11-13 Method and system for measuring levels

Country Status (7)

Country Link
US (1) US6642722B2 (hu)
EP (1) EP1334337B1 (hu)
CN (1) CN100414268C (hu)
AU (1) AU2002216034A1 (hu)
DE (2) DE10056353A1 (hu)
HU (1) HU227096B1 (hu)
WO (1) WO2002040950A1 (hu)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0009863D0 (en) * 2000-04-26 2000-06-07 Rogers Gary System for detecting skin malignancies
JP4044376B2 (ja) * 2002-06-24 2008-02-06 株式会社ノーケン 振動式レベルセンサの温度測定方法，物体検出方法および物体検出装置
DE10237931A1 (de) * 2002-08-14 2004-02-26 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Überwachung eines vorbestimmten Füllstands eines Messmediums in einem Behälter
DE10242970A1 (de) * 2002-09-17 2004-04-01 Vega Grieshaber Kg Vibrations-Füllstandssensor
DE102004011377A1 (de) * 2004-03-05 2005-09-15 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgrösse
US7146845B2 (en) 2004-03-24 2006-12-12 Vega Grieshaber Kg Method for operating tests of vibration level switch sensors and corresponding vibration level switch
DE102005020862A1 (de) * 2005-05-02 2006-11-09 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße
DE102005036872B4 (de) * 2005-08-02 2016-03-24 Vega Grieshaber Kg Vorrichtung zur Vibrations-Füllstand-Grenzstanderfassung und Verfahren zur Vibrations-Füllstand-Grenzstanderfassung
DE102006020342A1 (de) 2006-04-28 2007-10-31 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgrösse
US20090125948A1 (en) * 2007-11-12 2009-05-14 Cisco Technology, Inc. Communication Processing Based on Television Use
DE102011090015B4 (de) * 2011-12-28 2023-12-28 Endress+Hauser SE+Co. KG Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße
US11566936B1 (en) 2016-02-12 2023-01-31 Munters Corporation Method and apparatus to non-intrusively measure the weight of loose bulk material within a rigid containing structure
DE102016111134A1 (de) 2016-06-17 2017-12-21 Endress+Hauser Gmbh+Co. Kg Vibronischer Sensor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4788466A (en) * 1987-11-09 1988-11-29 University Of Arkansas Piezoelectric sensor Q-loss compensation
US5365178A (en) * 1991-02-12 1994-11-15 Krohne Messtechnik Gmbh & Co. Kg Electrical device for liquid level measurements in industrial tanks and the like
DE4232659C2 (de) * 1992-09-29 1996-07-25 Endress Hauser Gmbh Co Vorrichtung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstands in einem Behälter
DE4233185C1 (de) * 1992-10-02 1994-01-27 Endress Hauser Gmbh Co Vorrichtung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstandes
DE4233188A1 (de) 1992-10-02 1994-04-07 Altmann Ernst Anzeigevorrichtung für Kraftfahrzeuge
DE4402234C1 (de) * 1994-01-26 1995-04-20 Endress Hauser Gmbh Co Verfahren und Anordnung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstands in einem Behälter
DE4439879C1 (de) * 1994-11-08 1996-02-01 Grieshaber Vega Kg Vibrations-Füllstand-Grenzschalter
US5895848A (en) * 1996-01-16 1999-04-20 Flowline Inc. Apparatus and method for level sensing in a container
EP0875741B1 (de) * 1997-04-30 2008-08-20 Endress + Hauser GmbH + Co. KG Anordnung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstands in einem Behälter
DE19720519C2 (de) * 1997-05-16 2000-03-30 Pepperl & Fuchs Vorrichtung zur Feststellung und/oder Überwachung eines Füllstandes eines Mediums in einem Behälter
DE19835370A1 (de) * 1998-08-05 2000-02-10 Grieshaber Vega Kg Verfahren und Anordnung zur Funktionsüberwachung von Vibrationsgrenzschaltern

Also Published As

Publication number Publication date
CN1484754A (zh) 2004-03-24
US20020057094A1 (en) 2002-05-16
WO2002040950A1 (de) 2002-05-23
AU2002216034A1 (en) 2002-05-27
DE50114974D1 (de) 2009-08-20
HUP0301521A3 (en) 2005-10-28
HU227096B1 (en) 2010-07-28
CN100414268C (zh) 2008-08-27
DE10056353A1 (de) 2002-05-23
EP1334337A1 (de) 2003-08-13
EP1334337B1 (de) 2009-07-08
US6642722B2 (en) 2003-11-04

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