BR0004311A - Transmissor de nìvel por radar de baixa potência, e, método de detectar interfaces de produto de processo múltiplo - Google Patents

Transmissor de nìvel por radar de baixa potência, e, método de detectar interfaces de produto de processo múltiplo

Info

Publication number
BR0004311A
BR0004311A BR0004311-7A BR0004311A BR0004311A BR 0004311 A BR0004311 A BR 0004311A BR 0004311 A BR0004311 A BR 0004311A BR 0004311 A BR0004311 A BR 0004311A
Authority
BR
Brazil
Prior art keywords
pulse
product
low power
products
reflected wave
Prior art date
Application number
BR0004311-7A
Other languages
English (en)
Inventor
Kurt C Diede
Brian E Richter
Original Assignee
Rosemount Inc
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 Rosemount Inc filed Critical Rosemount Inc
Publication of BR0004311A publication Critical patent/BR0004311A/pt

Links

Classifications

    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications

Landscapes

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

Abstract

"TRANSMISSOR DE NìVEL POR RADAR DE BAIXA POTêNCIA, E, MéTODO DE DETECTAR INTERFACES DE PRODUTO DE PROCESSO MúLTIPLO" Exposto é um transmissor de nível por radar de reflectometria no domínio do tempo de baixa potência (LPTDRR) (100) para calcular níveis de primeiro e segundo produtos (14, 15) em um tanque (12). Uma terminação (110) se estende no primeiro e segundo produtos (14, 15) no tanque. Um gerador de pulso (210) transmite um pulso ao longo da terminação (110) no primeiro e segundo produtos (14, 15). Um receptor de pulso (220) recebe primeiro e segundo pulsos de onda refletida correspondendo a reflexão de uma primeira parte do pulso de transmissão em uma primeira interface de produto (127) e reflexão de uma segunda parte do pulso de transmissão em uma segunda interface de produto (128), respectivamente. Um controlador de limite (230) gera um primeiro limite para detecção do primeiro pulso de onda refletida e um segundo limite para detecção do segundo pulso de onda refletida. Um calculador de constante dielétrica (240) determina uma constante dielétrica do primeiro produto (14) como uma função do primeiro pulso de onda refletida. Um computador de nível (250) calcula níveis do primeiro e segundo produtos (14, 15).
BR0004311-7A 1999-01-21 2000-01-18 Transmissor de nìvel por radar de baixa potência, e, método de detectar interfaces de produto de processo múltiplo BR0004311A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/234,999 US6198424B1 (en) 1999-01-21 1999-01-21 Multiple process product interface detection for a low power radar level transmitter
PCT/US2000/001076 WO2000043739A1 (en) 1999-01-21 2000-01-18 Multiple process product interface detection for a low power radar level transmitter

Publications (1)

Publication Number Publication Date
BR0004311A true BR0004311A (pt) 2000-11-21

Family

ID=22883636

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0004311-7A BR0004311A (pt) 1999-01-21 2000-01-18 Transmissor de nìvel por radar de baixa potência, e, método de detectar interfaces de produto de processo múltiplo

Country Status (9)

Country Link
US (1) US6198424B1 (pt)
EP (1) EP1066500B1 (pt)
JP (1) JP2002535641A (pt)
CN (1) CN1213284C (pt)
AU (1) AU2614900A (pt)
BR (1) BR0004311A (pt)
CA (1) CA2323558A1 (pt)
DE (1) DE60034631T2 (pt)
WO (1) WO2000043739A1 (pt)

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Also Published As

Publication number Publication date
CA2323558A1 (en) 2000-07-27
WO2000043739A1 (en) 2000-07-27
DE60034631D1 (de) 2007-06-14
CN1213284C (zh) 2005-08-03
EP1066500B1 (en) 2007-05-02
EP1066500A1 (en) 2001-01-10
JP2002535641A (ja) 2002-10-22
US6198424B1 (en) 2001-03-06
DE60034631T2 (de) 2008-01-10
AU2614900A (en) 2000-08-07
CN1293755A (zh) 2001-05-02

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]