WO2006131822A3 - Level sensor with optoelectronic tilt switch - Google Patents

Level sensor with optoelectronic tilt switch Download PDF

Info

Publication number
WO2006131822A3
WO2006131822A3 PCT/IB2006/001516 IB2006001516W WO2006131822A3 WO 2006131822 A3 WO2006131822 A3 WO 2006131822A3 IB 2006001516 W IB2006001516 W IB 2006001516W WO 2006131822 A3 WO2006131822 A3 WO 2006131822A3
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
probe
level sensor
tilt switch
optoelectronic
Prior art date
Application number
PCT/IB2006/001516
Other languages
French (fr)
Other versions
WO2006131822A2 (en
Inventor
Gianluigi Riva
Original Assignee
Thermo Ramsey Italia S R L
Gianluigi Riva
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 Thermo Ramsey Italia S R L, Gianluigi Riva filed Critical Thermo Ramsey Italia S R L
Priority to EP06765485A priority Critical patent/EP1889017A2/en
Publication of WO2006131822A2 publication Critical patent/WO2006131822A2/en
Publication of WO2006131822A3 publication Critical patent/WO2006131822A3/en

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
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • 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
    • G01F23/30—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 floats
    • G01F23/32—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 floats using rotatable arms or other pivotable transmission elements
    • G01F23/36—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 floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • G01F23/366—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 floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using optoelectrically actuated indicating means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Electronic Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A level indicator is described for bulk material that includes at least one probe sensitive to its tilting with respect to the normal vertical position and at least one electronic control circuit having a first section, associated with the probe, and a second remote section connected to the first by means of a pair of conductors. The control circuit detects a signal of the current circulating between the two connected circuit sections and generates a processed signal representative of the position of the probe and the condition of the open circuit or short circuit between the two circuit sections.
PCT/IB2006/001516 2005-06-10 2006-06-08 Level sensor with optoelectronic tilt switch WO2006131822A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06765485A EP1889017A2 (en) 2005-06-10 2006-06-08 Tilt sensor with optoelectronic tilt switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05425422 2005-06-10
EP05425422.2 2005-06-10

Publications (2)

Publication Number Publication Date
WO2006131822A2 WO2006131822A2 (en) 2006-12-14
WO2006131822A3 true WO2006131822A3 (en) 2007-02-22

Family

ID=35033442

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/001516 WO2006131822A2 (en) 2005-06-10 2006-06-08 Level sensor with optoelectronic tilt switch

Country Status (2)

Country Link
EP (1) EP1889017A2 (en)
WO (1) WO2006131822A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101713681B (en) * 2009-12-02 2012-03-14 张学文 Mining material detection circuit and device
CN108791722B (en) * 2018-03-01 2020-12-29 煤炭科学技术研究院有限公司 Method and device for measuring loading capacity of ship liquid tank

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680475A (en) * 1985-07-31 1987-07-14 Markland Specialty Engineering Ltd. Apparatus for detecting an interface in fluids utilizing plural multiplexed light emitters and receivers
EP0287107A2 (en) * 1987-04-16 1988-10-19 Pepperl + Fuchs Füllstandstechnik Gmbh Position switch for switching electrical aggregates
EP0639842A1 (en) * 1993-08-17 1995-02-22 ELB-Füllstandsgeräte Bundschuh GmbH + Co. Movable position switch
DE19927365A1 (en) * 1998-07-02 2000-02-24 Ifm Electronic Gmbh Method of liquid level control employs integral immersion pumps and sensors, avoiding costly remote control gear and requiring only single power supply cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680475A (en) * 1985-07-31 1987-07-14 Markland Specialty Engineering Ltd. Apparatus for detecting an interface in fluids utilizing plural multiplexed light emitters and receivers
EP0287107A2 (en) * 1987-04-16 1988-10-19 Pepperl + Fuchs Füllstandstechnik Gmbh Position switch for switching electrical aggregates
EP0639842A1 (en) * 1993-08-17 1995-02-22 ELB-Füllstandsgeräte Bundschuh GmbH + Co. Movable position switch
DE19927365A1 (en) * 1998-07-02 2000-02-24 Ifm Electronic Gmbh Method of liquid level control employs integral immersion pumps and sensors, avoiding costly remote control gear and requiring only single power supply cable

Also Published As

Publication number Publication date
EP1889017A2 (en) 2008-02-20
WO2006131822A2 (en) 2006-12-14

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