NO20052820L - Apparatus and method for radar level painting - Google Patents

Apparatus and method for radar level painting

Info

Publication number
NO20052820L
NO20052820L NO20052820A NO20052820A NO20052820L NO 20052820 L NO20052820 L NO 20052820L NO 20052820 A NO20052820 A NO 20052820A NO 20052820 A NO20052820 A NO 20052820A NO 20052820 L NO20052820 L NO 20052820L
Authority
NO
Norway
Prior art keywords
microwave signal
dielectric constant
liquid
gas
transmitter
Prior art date
Application number
NO20052820A
Other languages
Norwegian (no)
Other versions
NO337547B1 (en
Inventor
Kurt Olov Edvardsson
Original Assignee
Saab Rosemount Tank Radar Ab
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
Priority claimed from EP02445154.4A external-priority patent/EP1422503B1/en
Priority claimed from US10/301,551 external-priority patent/US6915689B2/en
Application filed by Saab Rosemount Tank Radar Ab filed Critical Saab Rosemount Tank Radar Ab
Publication of NO20052820L publication Critical patent/NO20052820L/en
Publication of NO337547B1 publication Critical patent/NO337547B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Et apparat for å måle væskenivået, hvor det over væsken eksisterer en gass som har en dielektrisk konstant irmenfor et forhåndsbestemt verdiområde for dielektrisk konstant, omfatter en ttansmitter for å sende et mikrobølgesignal i en forplantningsmodus i et rør gjermom gassen mot væskeoverflaten; en mottaker for å motta mikrobølgesignalet refiektert fra væskeoverflaten og forplantet tilbake gjennom røret; og en behandlingsenhet for å beregne væskenivået ut - fra forplantningstiden tU det sendte og reflekterte mikrobølgesignalet. For i størst mulig grad å urmgå at det beregnede nivået påvirkes av den dielektriske konstanten til gassen over væsken, er innrettet ttansmitteren til å sende mikrobølgesignalet i et frekvensbånd hvor gruppehastighetene til mikrobølgesignalet i forplantningsmodusen i røret er, irmenfor det forhåndsbestemte verdiområdet for dielektrisk konstant, i størst mulig grad uavhengig av den dielektriske konstanten.An apparatus for measuring the liquid level, where there exists a gas having a dielectric constant above a predetermined value range for a dielectric constant, comprises a transmitter for transmitting a microwave signal in a propagation mode in a pipe through the gas towards the liquid surface; a receiver for receiving the microwave signal reflected from the liquid surface and propagated back through the tube; and a processing unit for calculating the fluid level - from the propagation time to the transmitted and reflected microwave signal. In order to avoid as much as possible that the calculated level is affected by the dielectric constant of the gas over the liquid, the transmitter is arranged to transmit the microwave signal in a frequency band where the group velocities of the microwave signal in the propagation mode in the tube are, in the predetermined part range constant range, as much as possible regardless of the dielectric constant.

NO20052820A 2002-11-20 2005-06-10 Apparatus and method for radar-based level measurement NO337547B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02445154.4A EP1422503B1 (en) 2002-11-20 2002-11-20 Apparatus and method for radar-based level gauging
US10/301,551 US6915689B2 (en) 2002-11-21 2002-11-21 Apparatus and method for radar-based level gauging
PCT/SE2003/001802 WO2004046663A1 (en) 2002-11-20 2003-11-20 Apparatus and method for radar-based level gauging

Publications (2)

Publication Number Publication Date
NO20052820L true NO20052820L (en) 2005-06-10
NO337547B1 NO337547B1 (en) 2016-05-02

Family

ID=32327873

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052820A NO337547B1 (en) 2002-11-20 2005-06-10 Apparatus and method for radar-based level measurement

Country Status (6)

Country Link
JP (1) JP4695394B2 (en)
KR (1) KR100891694B1 (en)
AU (1) AU2003279686A1 (en)
NO (1) NO337547B1 (en)
RU (1) RU2327958C2 (en)
WO (1) WO2004046663A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100790802B1 (en) * 2006-06-28 2008-01-04 대한민국 A ponding depth measuring device for paddy field
RU2473055C1 (en) * 2011-08-12 2013-01-20 Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН Method of measuring level of liquid in container
CN109489772A (en) 2011-09-06 2019-03-19 斯塔米卡邦有限公司 Radar level gauging
JP5773951B2 (en) * 2012-06-08 2015-09-02 ムサシノ機器株式会社 Liquid level measuring device and its VCO predistortion method
JP5759429B2 (en) * 2012-08-02 2015-08-05 ムサシノ機器株式会社 Relative permittivity calculation device and relative permittivity calculation program
JP6041596B2 (en) * 2012-09-19 2016-12-14 ムサシノ機器株式会社 Two-transmission mode compatible planar transducer
JP5952168B2 (en) * 2012-11-02 2016-07-13 ムサシノ機器株式会社 Liquid level measuring device
HUE039082T2 (en) * 2013-04-24 2018-12-28 Grieshaber Vega Kg Mode converter for fill level radar
CN105216983A (en) * 2015-09-29 2016-01-06 中国海洋大学 Dive in water, liquid level solidification equipment in buoyancy aid cabin
JP6309039B2 (en) * 2016-04-12 2018-04-11 ムサシノ機器株式会社 Propagation mode transducer
JP6670693B2 (en) * 2016-06-29 2020-03-25 株式会社アースニクスエム Measuring device
ES2792043T3 (en) * 2017-12-04 2020-11-06 Grieshaber Vega Kg Printed circuit board for a radar fill level measuring device with a waveguide coupling
DE102018132285A1 (en) 2018-12-14 2020-06-18 Endress+Hauser SE+Co. KG Level meter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT961071B (en) * 1971-09-04 1973-12-10 Cnen PROBE AND INSTALLATION FOR MEASURING THE LEVELS OF INTERFACES OF FLUIDS AND OF THE CONSTANTS OF THE ELETTERS AND OF THE SAME
SE441306B (en) * 1984-04-25 1985-09-23 Saab Marine Electronics SET AND DEVICE FOR SEATING NIVAN IN A CONTAINER CONTAINING FLUID MATERIAL
SE461179B (en) * 1989-02-08 1990-01-15 Saab Marine Electronics DEVICE FOR Saturation of the level of a fluid present in a container
JP2655314B2 (en) * 1994-06-06 1997-09-17 株式会社ワイヤーデバイス Liquid level indicator
DE19810601A1 (en) * 1998-03-12 1999-09-16 Daimler Benz Aerospace Ag Arrangement for level measurement
EP0947812A1 (en) * 1998-03-28 1999-10-06 Endress + Hauser GmbH + Co. Microwave operated level gauge
DE59813795D1 (en) * 1998-05-06 2006-12-21 Endress & Hauser Gmbh & Co Kg Method for measuring the level of a product in a container according to the radar principle
FR2786879B1 (en) * 1998-12-04 2001-12-21 Nortene Technologies ELECTROMAGNETIC DETECTION DEVICE, METHOD AND STRUCTURE TO BE BURIED
JP2000275087A (en) * 1999-03-25 2000-10-06 Ishikawajima Harima Heavy Ind Co Ltd Level gage
EP1069438A1 (en) * 1999-07-15 2001-01-17 Endress + Hauser Gmbh + Co. Method and device for highly accurate determination of the level of a product in a container
JP2001203510A (en) * 2000-01-20 2001-07-27 Kyocera Corp Circulator for non-radiative dielectric line and millimeter wave transmitter-receiver using it

Also Published As

Publication number Publication date
JP2006506639A (en) 2006-02-23
RU2005118746A (en) 2006-04-27
JP4695394B2 (en) 2011-06-08
KR100891694B1 (en) 2009-04-03
NO337547B1 (en) 2016-05-02
WO2004046663A1 (en) 2004-06-03
KR20050059337A (en) 2005-06-17
RU2327958C2 (en) 2008-06-27
AU2003279686A1 (en) 2004-06-15

Similar Documents

Publication Publication Date Title
NO20052820L (en) Apparatus and method for radar level painting
US10684119B2 (en) Device and method for measuring the diameter and/or the wall thickness of a strand
US10458871B2 (en) Apparatus and method for measuring the pressure inside a pipe or container
CA2403862A1 (en) Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
AU3986900A (en) High-precision measuring method and apparatus
RU2660011C1 (en) Method and device for ultrasonic flow method measurement and layout device for controlling ultrasonic flow measurements by practical method
US5513535A (en) Method and device for measurement of the flow velocities of gases and/or of quantities that can be derived from same
WO2003019121A8 (en) Radar level-measuring device
GB2596687A (en) Self-calibrated method of determining borehole fluid acoustic properties
GB2300265A (en) Flowmeter
JP2007093313A (en) Position coordinate detection method and system device
CN112639412B (en) Flow measuring device
JP2001249039A (en) Ultrasonic gas flow-velocity measuring method
JP4650574B2 (en) Ultrasonic flow meter
NO20090889L (en) Apparatus and method for attenuation of acoustic waves propagating in a rudder wall
JP2003014514A (en) Ultrasonic flowmeter
US20240310197A1 (en) Acoustic Rail for Clamp on Ultrasonic Flow Meter
US6422081B1 (en) Ultrasonic sound velocity measuring method and its apparatus
RU2525472C1 (en) Acoustic range-finder
KR100317954B1 (en) Ultrasonic Flow Measurement Method Using Variable Delay
JP4052149B2 (en) Temperature measuring device
JPH04318455A (en) Ultrasonic concentration measuring instrument
JP4284738B2 (en) Ultrasonic flow meter
JPS58122412A (en) Position detecting method of moving body in pipeline
JPS5574457A (en) Concentration measuring device

Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: ROSEMOUNT TANK RADAR AB, SE

MK1K Patent expired