ATE550831T1 - Verfahren und vorrichtung zur hochgenauen hochfrequenzsignalerzeugung und zugehöriges pegelmessgerät - Google Patents

Verfahren und vorrichtung zur hochgenauen hochfrequenzsignalerzeugung und zugehöriges pegelmessgerät

Info

Publication number
ATE550831T1
ATE550831T1 AT09169962T AT09169962T ATE550831T1 AT E550831 T1 ATE550831 T1 AT E550831T1 AT 09169962 T AT09169962 T AT 09169962T AT 09169962 T AT09169962 T AT 09169962T AT E550831 T1 ATE550831 T1 AT E550831T1
Authority
AT
Austria
Prior art keywords
control loop
phase
output signal
frequency
frequency signal
Prior art date
Application number
AT09169962T
Other languages
English (en)
Inventor
Bin Sai
Ronald Schrier
Original Assignee
Enraf Bv
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 Enraf Bv filed Critical Enraf Bv
Application granted granted Critical
Publication of ATE550831T1 publication Critical patent/ATE550831T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/12—Indirect frequency synthesis using a mixer in the phase-locked loop

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
AT09169962T 2008-09-18 2009-09-10 Verfahren und vorrichtung zur hochgenauen hochfrequenzsignalerzeugung und zugehöriges pegelmessgerät ATE550831T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9814608P 2008-09-18 2008-09-18
US12/534,723 US8659472B2 (en) 2008-09-18 2009-08-03 Method and apparatus for highly accurate higher frequency signal generation and related level gauge

Publications (1)

Publication Number Publication Date
ATE550831T1 true ATE550831T1 (de) 2012-04-15

Family

ID=41350679

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09169962T ATE550831T1 (de) 2008-09-18 2009-09-10 Verfahren und vorrichtung zur hochgenauen hochfrequenzsignalerzeugung und zugehöriges pegelmessgerät

Country Status (3)

Country Link
US (1) US8659472B2 (de)
EP (1) EP2166671B1 (de)
AT (1) ATE550831T1 (de)

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NL1031209C2 (nl) * 2006-02-22 2007-08-24 Enraf Bv Werkwijze en inrichting voor het nauwkeurig vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
NL1034327C2 (nl) * 2007-09-04 2009-03-05 Enraf Bv Werkwijze en inrichting voor het binnen een bepaald meetbereik vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
US8224594B2 (en) * 2008-09-18 2012-07-17 Enraf B.V. Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications
US8271212B2 (en) * 2008-09-18 2012-09-18 Enraf B.V. Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus
US9513153B2 (en) 2010-12-30 2016-12-06 Rosemount Tank Radar Ab Radar level gauging using frequency modulated pulsed wave
US8872694B2 (en) 2010-12-30 2014-10-28 Rosemount Tank Radar Ab Radar level gauging using frequency modulated pulsed wave
US8854253B2 (en) 2011-09-27 2014-10-07 Rosemount Tank Radar Ab Radar level gauging with detection of moving surface
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Also Published As

Publication number Publication date
EP2166671A2 (de) 2010-03-24
US20100066589A1 (en) 2010-03-18
US8659472B2 (en) 2014-02-25
EP2166671B1 (de) 2012-03-21
EP2166671A3 (de) 2010-04-28

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