WO2004044532A3 - An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe - Google Patents

An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe Download PDF

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Publication number
WO2004044532A3
WO2004044532A3 PCT/US2003/036436 US0336436W WO2004044532A3 WO 2004044532 A3 WO2004044532 A3 WO 2004044532A3 US 0336436 W US0336436 W US 0336436W WO 2004044532 A3 WO2004044532 A3 WO 2004044532A3
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
pressure sensors
piezoelectric film
process flow
array
Prior art date
Application number
PCT/US2003/036436
Other languages
French (fr)
Other versions
WO2004044532A2 (en
Inventor
Mark R Fernald
Michael A Davis
Alan D Kersey
Daniel L Gysling
Timothy J Bailey
Original Assignee
Cidra Corp
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 Cidra Corp filed Critical Cidra Corp
Priority to CA2513105A priority Critical patent/CA2513105C/en
Priority to EP03781946A priority patent/EP1567833A2/en
Priority to AU2003287645A priority patent/AU2003287645A1/en
Publication of WO2004044532A2 publication Critical patent/WO2004044532A2/en
Publication of WO2004044532A3 publication Critical patent/WO2004044532A3/en

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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G01F1/668—Compensating or correcting for variations in velocity of sound
    • 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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/666—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters by detecting noise and sounds generated by the flowing fluid
    • 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
    • G01F1/7082—Measuring the time taken to traverse a fixed distance using acoustic detecting arrangements
    • 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
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • 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

Abstract

A apparatus (10, 110, 170) is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, mass flow rate, enthalpy and volumetric flow rate of the flow in a pipe, by measuring acoustic and/or dynamic pressures. The apparatus includes a spatial array of unsteady pressure sensors (15-18) placed at predetermined axial locations x1 - xN disposed axially along the pipe (14). The pressure sensors (15-18) provide acoustic pressure signals P1(t) - PN(t) to a signal processing unit (30) which determines the speed of sound amix propagating through of the process flow (12) flowing in the pipe (14). The pressure sensors are piezoelectric film sensors that are mounted or clamped onto the outer surface of the pipe at the respective axial location.
PCT/US2003/036436 2002-11-12 2003-11-12 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe WO2004044532A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2513105A CA2513105C (en) 2002-11-12 2003-11-12 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe
EP03781946A EP1567833A2 (en) 2002-11-12 2003-11-12 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe
AU2003287645A AU2003287645A1 (en) 2002-11-12 2003-11-12 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US42543602P 2002-11-12 2002-11-12
US60/425,436 2002-11-12
US42672402P 2002-11-15 2002-11-15
US60/426,724 2002-11-15

Publications (2)

Publication Number Publication Date
WO2004044532A2 WO2004044532A2 (en) 2004-05-27
WO2004044532A3 true WO2004044532A3 (en) 2004-10-28

Family

ID=32314590

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2003/036436 WO2004044532A2 (en) 2002-11-12 2003-11-12 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe
PCT/US2003/036435 WO2004044531A2 (en) 2002-11-12 2003-11-12 An apparatus having an array of clamp on piezoelectric film sensors for measuring parameters of a process flow within a pipe

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2003/036435 WO2004044531A2 (en) 2002-11-12 2003-11-12 An apparatus having an array of clamp on piezoelectric film sensors for measuring parameters of a process flow within a pipe

Country Status (5)

Country Link
US (2) US7400985B2 (en)
EP (2) EP1567833A2 (en)
AU (2) AU2003287645A1 (en)
CA (2) CA2513094C (en)
WO (2) WO2004044532A2 (en)

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EP1576342A2 (en) 2005-09-21
US20040168523A1 (en) 2004-09-02
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WO2004044531A3 (en) 2004-11-25
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CA2513105C (en) 2013-01-08
AU2003287645A8 (en) 2004-06-03
US20040168522A1 (en) 2004-09-02
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US7400985B2 (en) 2008-07-15

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