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GB2325980B - Measurement using cross-correlation - Google Patents

Measurement using cross-correlation

Info

Publication number
GB2325980B
GB2325980B GB9711826A GB9711826A GB2325980B GB 2325980 B GB2325980 B GB 2325980B GB 9711826 A GB9711826 A GB 9711826A GB 9711826 A GB9711826 A GB 9711826A GB 2325980 B GB2325980 B GB 2325980B
Authority
GB
United Kingdom
Prior art keywords
correlation
measurement
cross
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9711826A
Other versions
GB9711826D0 (en
GB2325980A (en
Inventor
Raymond Paul Keech
John Coulthard
Rui Xue Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Instrumentation Ltd
Original Assignee
ABB Kent Taylor Ltd
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 ABB Kent Taylor Ltd filed Critical ABB Kent Taylor Ltd
Priority to GB9711826A priority Critical patent/GB2325980B/en
Publication of GB9711826D0 publication Critical patent/GB9711826D0/en
Priority to PCT/GB1998/001654 priority patent/WO1998055839A1/en
Publication of GB2325980A publication Critical patent/GB2325980A/en
Application granted granted Critical
Publication of GB2325980B publication Critical patent/GB2325980B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/712—Measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/64—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by measuring electrical currents passing through the fluid flow; measuring electrical potential generated by the fluid flow, e.g. by electrochemical, contact or friction effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
    • G01P5/22—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Measuring Volume Flow (AREA)
GB9711826A 1997-06-06 1997-06-06 Measurement using cross-correlation Expired - Fee Related GB2325980B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9711826A GB2325980B (en) 1997-06-06 1997-06-06 Measurement using cross-correlation
PCT/GB1998/001654 WO1998055839A1 (en) 1997-06-06 1998-06-05 Measurement using cross-correlation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9711826A GB2325980B (en) 1997-06-06 1997-06-06 Measurement using cross-correlation

Publications (3)

Publication Number Publication Date
GB9711826D0 GB9711826D0 (en) 1997-08-06
GB2325980A GB2325980A (en) 1998-12-09
GB2325980B true GB2325980B (en) 2002-01-23

Family

ID=10813748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9711826A Expired - Fee Related GB2325980B (en) 1997-06-06 1997-06-06 Measurement using cross-correlation

Country Status (2)

Country Link
GB (1) GB2325980B (en)
WO (1) WO1998055839A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT505522B1 (en) * 2007-08-09 2011-04-15 Univ Graz Tech DEVICE FOR DETERMINING FLOW PARAMETERS OF A PARTICLE FLUIDUM FLOW
CN107843406B (en) * 2017-10-31 2020-01-07 中国空气动力研究与发展中心高速空气动力研究所 Cavity modal wave motion characteristic determination method based on pulse pressure correlation function
CN113985060B (en) * 2021-10-31 2024-08-23 天津职业技术师范大学(中国职业培训指导教师进修中心) Cross-correlation velocity measurement method reflecting peak type characteristics of cross-correlation function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011621A (en) * 1978-01-03 1979-07-11 Goulthard J Improvements in or relating to the measurement of relative velocities
GB2164450A (en) * 1984-09-10 1986-03-19 Endress Hauser Gmbh Co Arrangement for detecting spatial inhomogeneities in a dielectric
GB2215096A (en) * 1988-02-09 1989-09-13 Gen Electric Co Plc Signal processing circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1393103A (en) * 1972-01-27 1975-05-07 Kent Instruments Ltd Flow velocity measurement
DE3627162A1 (en) * 1986-08-11 1988-02-25 Endress Hauser Gmbh Co ARRANGEMENT FOR THE CONTACTLESS MEASUREMENT OF THE VOLUME OR MASS FLOW OF A MOVING MEDIUM
GB2274713B (en) * 1993-01-29 1997-07-02 Schlumberger Ltd Flow meter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011621A (en) * 1978-01-03 1979-07-11 Goulthard J Improvements in or relating to the measurement of relative velocities
GB2164450A (en) * 1984-09-10 1986-03-19 Endress Hauser Gmbh Co Arrangement for detecting spatial inhomogeneities in a dielectric
GB2215096A (en) * 1988-02-09 1989-09-13 Gen Electric Co Plc Signal processing circuit

Also Published As

Publication number Publication date
GB9711826D0 (en) 1997-08-06
WO1998055839A1 (en) 1998-12-10
GB2325980A (en) 1998-12-09

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160606