WO2005043143A3 - Method for recognising the moment when a body is submerged in or emerges from a liquid - Google Patents

Method for recognising the moment when a body is submerged in or emerges from a liquid Download PDF

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Publication number
WO2005043143A3
WO2005043143A3 PCT/IB2004/052212 IB2004052212W WO2005043143A3 WO 2005043143 A3 WO2005043143 A3 WO 2005043143A3 IB 2004052212 W IB2004052212 W IB 2004052212W WO 2005043143 A3 WO2005043143 A3 WO 2005043143A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
recognising
emerges
submerged
moment
Prior art date
Application number
PCT/IB2004/052212
Other languages
German (de)
French (fr)
Other versions
WO2005043143A2 (en
Inventor
Roland Gugerli
Original Assignee
Rosenmund Vta Ag
Roland Gugerli
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 Rosenmund Vta Ag, Roland Gugerli filed Critical Rosenmund Vta Ag
Publication of WO2005043143A2 publication Critical patent/WO2005043143A2/en
Publication of WO2005043143A3 publication Critical patent/WO2005043143A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4869—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration by level measuring

Abstract

In a method for recognising the moment when a granulated, crumbly, grained or sand-like solid or a solid or porous body is submerged in or emerges from a liquid, surface waves are generated in the liquid (22). The micro-waves (14) emitted by a field device (10) and reflected by the waves (32) are received by the same field device (10), analysed on the basis of the Doppler effect in an electronic circuit especially developed for that purpose, and retransmitted to a process control system.
PCT/IB2004/052212 2003-10-30 2004-10-27 Method for recognising the moment when a body is submerged in or emerges from a liquid WO2005043143A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH18492003A CH696674A5 (en) 2003-10-30 2003-10-30 Method for detecting the entry or Auftauchzeitpunktes a body in or from a liquid.
CH01849/03 2003-10-30

Publications (2)

Publication Number Publication Date
WO2005043143A2 WO2005043143A2 (en) 2005-05-12
WO2005043143A3 true WO2005043143A3 (en) 2005-06-30

Family

ID=34529360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/052212 WO2005043143A2 (en) 2003-10-30 2004-10-27 Method for recognising the moment when a body is submerged in or emerges from a liquid

Country Status (2)

Country Link
CH (1) CH696674A5 (en)
WO (1) WO2005043143A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303326A2 (en) * 1987-08-14 1989-02-15 Shell Internationale Researchmaatschappij B.V. Apparatus for detecting unwanted liquid contamination in oil drums prior to their filling
US4929829A (en) * 1988-08-25 1990-05-29 Bayer Aktiengesellschaft Method for detecting flooding of a surface
US5103676A (en) * 1990-02-12 1992-04-14 The United States Of America As Represented By The United States Department Of Energy Method of noncontacting ultrasonic process monitoring
DE4412889A1 (en) * 1994-04-14 1995-10-19 Krauss Maffei Ag Laser-reflective monitor, to optimise any solid sepn.
US5705815A (en) * 1995-02-11 1998-01-06 Boehringer Mannheim Gmbh Device for the detection of liquid surfaces
DE19728653A1 (en) * 1997-07-04 1999-01-07 Micas Elektronik Gmbh U Co Kg Method to detect surface vibrations of bodies for evaluating quality

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303326A2 (en) * 1987-08-14 1989-02-15 Shell Internationale Researchmaatschappij B.V. Apparatus for detecting unwanted liquid contamination in oil drums prior to their filling
US4929829A (en) * 1988-08-25 1990-05-29 Bayer Aktiengesellschaft Method for detecting flooding of a surface
US5103676A (en) * 1990-02-12 1992-04-14 The United States Of America As Represented By The United States Department Of Energy Method of noncontacting ultrasonic process monitoring
DE4412889A1 (en) * 1994-04-14 1995-10-19 Krauss Maffei Ag Laser-reflective monitor, to optimise any solid sepn.
US5705815A (en) * 1995-02-11 1998-01-06 Boehringer Mannheim Gmbh Device for the detection of liquid surfaces
DE19728653A1 (en) * 1997-07-04 1999-01-07 Micas Elektronik Gmbh U Co Kg Method to detect surface vibrations of bodies for evaluating quality

Also Published As

Publication number Publication date
CH696674A5 (en) 2007-09-14
WO2005043143A2 (en) 2005-05-12

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