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1. WO1996002833 - METHOD AND APPARATUS FOR DETECTING THE CONDITION OF THE FLOW OF LIQUID METAL IN AND FROM A TEEMING VESSEL

Publication Number WO/1996/002833
Publication Date 01.02.1996
International Application No. PCT/CA1995/000425
International Filing Date 19.07.1995
Chapter 2 Demand Filed 19.02.1996
IPC
G01F 1/66 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66by measuring frequency, phase shift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
G01N 29/14 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
14using acoustic emission techniques
CPC
G01F 1/666
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66by measuring frequency, phaseshift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
666by detecting noise and sounds generated by the flowing fluid
G01N 2291/014
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
01Indexing codes associated with the measuring variable
014Resonance or resonant frequency
G01N 2291/0252
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
025Change of phase or condition
0252Melting, molten solids
G01N 2291/02836
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
028Material parameters
02836Flow rate, liquid level
G01N 29/14
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
14using acoustic emission techniques
G01N 29/449
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
44Processing the detected response signal ; , e.g. electronic circuits specially adapted therefor
449Statistical methods not provided for in G01N29/4409, e.g. averaging, smoothing and interpolation
Applicants
  • HEASLIP, Lawrence, John [CA/CA]; CA
  • DORRICOTT, James, Derek [CA/CA]; CA
Inventors
  • HEASLIP, Lawrence, John; CA
  • DORRICOTT, James, Derek; CA
Agents
  • NASSIF, Omar, A. ; McCarthy Tetrault Toronto Dominion Bank Tower Suite 4700 Toronto-Dominion Centre Toronto, Ontario M5K 1E6, CA
Priority Data
08/277,40919.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DETECTING THE CONDITION OF THE FLOW OF LIQUID METAL IN AND FROM A TEEMING VESSEL
(FR) PROCEDE ET APPAREIL DE DETECTION DES CONDITIONS D'ECOULEMENT D'UN METAL LIQUIDE DANS UNE POCHE DE COULEE ET HORS DE CELLE-CI
Abstract
(EN)
An apparatus for detecting the condition of the flow of liquid metal in or from a teeming vessel includes a sensor for detecting vibration caused by a flow of liquid metal in or from the teeming vessel and for outputting a sensor signal corresponding to an amount of vibration detected by the sensor. A signal processor receives the sensor signal and compares the sensor signal to a reference signal and outputs a comparison signal. A logic unit receives the comparison signal and outputs a status signal indicative of the condition of the flow of the liquid metal in or from the teeming vessel.
(FR)
Un appareil de détection des conditions d'écoulement d'un métal liquide dans une poche de coulée et hors de celle-ci comprend un capteur permettant de détecter la vibration causée par un écoulement de métal liquide dans une poche de coulée et depuis celle-ci, et d'émettre un signal correspondant au niveau de la vibration détectée par le capteur. Un processeur de signaux reçoit le signal du capteur, le compare à un signal de référence, puis émet un signal de comparaison. Une unité logique reçoit le signal de comparaison et émet un signal d'état représentatif des conditions d'écoulement du métal liquide dans la poche de coulée et depuis celle-ci.
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