WO2002103347A3 - Grain-size measurement - Google Patents

Grain-size measurement Download PDF

Info

Publication number
WO2002103347A3
WO2002103347A3 PCT/GB2002/002716 GB0202716W WO02103347A3 WO 2002103347 A3 WO2002103347 A3 WO 2002103347A3 GB 0202716 W GB0202716 W GB 0202716W WO 02103347 A3 WO02103347 A3 WO 02103347A3
Authority
WO
WIPO (PCT)
Prior art keywords
waves
mhz
grain
grain sizes
high frequency
Prior art date
Application number
PCT/GB2002/002716
Other languages
French (fr)
Other versions
WO2002103347A2 (en
Inventor
Allan Peter Smith
Christopher Brian Scruby
Brian Cecil Moss
Original Assignee
Accentus Plc
Allan Peter Smith
Christopher Brian Scruby
Brian Cecil Moss
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 Accentus Plc, Allan Peter Smith, Christopher Brian Scruby, Brian Cecil Moss filed Critical Accentus Plc
Priority to AU2002345158A priority Critical patent/AU2002345158A1/en
Publication of WO2002103347A2 publication Critical patent/WO2002103347A2/en
Publication of WO2002103347A3 publication Critical patent/WO2002103347A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating 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
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/42—Detecting the response signal, e.g. electronic circuits specially adapted therefor by frequency filtering or by tuning to resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0237—Thin materials, e.g. paper, membranes, thin films
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0423—Surface waves, e.g. Rayleigh waves, Love waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0426—Bulk waves, e.g. quartz crystal microbalance, torsional waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0427—Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0428—Mode conversion

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

Grain sizes, for example in a sheet (12), are monitored by generating broadband ultrasonic waves with a pulse laser generator (14) at a first location (18) on a surface of the object, and observing with a laser detectro (20, 36) the waves on the surface at a different location (A). The ultrasonic spectrum for those waves that arrive at arrival times after that of the Rayleigh waves or the start of the A0 Lamb waves is determined, and the high frequency power is compared to the low frequency power. This ratio gives a consistent relationship to grain sizes. With copper sheets the frequency windows may be 1 to 3 MHz as the low frequency region, and 2.2 to 15 MHz as the high frequency region.
PCT/GB2002/002716 2001-06-14 2002-06-12 Grain-size measurement WO2002103347A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002345158A AU2002345158A1 (en) 2001-06-14 2002-06-12 Grain-size measurement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0114460A GB0114460D0 (en) 2001-06-14 2001-06-14 Grain-size measurement
GB0114460.9 2001-06-14

Publications (2)

Publication Number Publication Date
WO2002103347A2 WO2002103347A2 (en) 2002-12-27
WO2002103347A3 true WO2002103347A3 (en) 2003-04-24

Family

ID=9916541

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/002716 WO2002103347A2 (en) 2001-06-14 2002-06-12 Grain-size measurement

Country Status (3)

Country Link
AU (1) AU2002345158A1 (en)
GB (1) GB0114460D0 (en)
WO (1) WO2002103347A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397650A (en) * 2003-01-24 2004-07-28 Accentus Plc Controlling an annealing process using a laser ultrasonic method to monitor grain size
JP4888484B2 (en) * 2007-01-11 2012-02-29 東芝三菱電機産業システム株式会社 Metallic tissue material measuring device
CN109556928B (en) * 2018-11-30 2022-03-18 国网山东省电力公司电力科学研究院 Fly ash sampling device, operation method thereof and calibration measurement method thereof
ES2878898T3 (en) * 2019-06-04 2021-11-19 Ssab Technology Ab Procedure and arrangement for estimating a material property of an object by means of laser ultrasonic measuring equipment (LUS)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658658A (en) * 1979-10-18 1981-05-21 Nippon Steel Corp Measuring method of grain size of steel material using pulse laser light
GB2172106A (en) * 1985-03-07 1986-09-10 Atomic Energy Authority Uk Ultrasonic microstructural monitoring
US5608166A (en) * 1995-10-12 1997-03-04 National Research Council Of Canada Generation and detection of ultrasound with long pulse lasers
US5804727A (en) * 1995-09-01 1998-09-08 Sandia Corporation Measurement of physical characteristics of materials by ultrasonic methods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658658A (en) * 1979-10-18 1981-05-21 Nippon Steel Corp Measuring method of grain size of steel material using pulse laser light
GB2172106A (en) * 1985-03-07 1986-09-10 Atomic Energy Authority Uk Ultrasonic microstructural monitoring
US5804727A (en) * 1995-09-01 1998-09-08 Sandia Corporation Measurement of physical characteristics of materials by ultrasonic methods
US5608166A (en) * 1995-10-12 1997-03-04 National Research Council Of Canada Generation and detection of ultrasound with long pulse lasers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 118 (P - 073) 30 July 1981 (1981-07-30) *

Also Published As

Publication number Publication date
GB0114460D0 (en) 2001-08-08
AU2002345158A1 (en) 2003-01-02
WO2002103347A2 (en) 2002-12-27

Similar Documents

Publication Publication Date Title
WO2007109255A3 (en) Megasonic processing apparatus with frequency sweeping of thickness mode transducers
WO2003038416A3 (en) Measurement of concentration of material in a process fluid
WO2004061575A3 (en) Computerized ultrasound risk evaluation system
WO2004028233A3 (en) Methods and devices for ablation
AU2002335636A1 (en) Method and apparatus for generating specific frequency response for ultrasound testing
CA2298085A1 (en) Edge detection and seam tracking with emats
EP1574966A3 (en) Weight function generating method and signal processing apparatus
AU2001247852A1 (en) Piezoelectric transducer having protuberances for transmitting acoustic energy and method of making the same
DK1776571T3 (en) Method for Determining the Biasing Force of Connecting Components by Ultrasonic Stimulation
WO2001069232A1 (en) Defect parameter for wooden members
GB2366104B (en) Surface acoustic wave device, shear bulk wave transducer, and longitudinal bulk wave transducer
WO2003047306A3 (en) Radial power megasonic transducer
AU2003207874A1 (en) Monobit-run frequency on-line randomness test
EP1271097A3 (en) Method for inspecting clad pipe
AU2003245274A1 (en) Methods and apparatus for rejecting returns from negative doppler shift swath in an airborne pulse radar
WO2002103347A3 (en) Grain-size measurement
EP1529588A3 (en) Electrochemical machining method, tool assembly, and monitoring method
MXPA04003619A (en) Ultrasonic cleaning products comprising cleaning composition having dissolved gas.
GB0224193D0 (en) Surface acoustic wave device and method of producing the same
WO2003095941A3 (en) System and method for controlling tube thickness with ultrasound
WO2005050617A3 (en) Ultrasonic contact transducer comprising multiple emitting elements and means for pressing said elements
EP1491715A3 (en) Method and apparatus for backing off a tubular member from a wellbore
WO2006087478A3 (en) Device for preserving, cooking and automatically dispensing dough-based products, such as bread
CA2037253A1 (en) Method and apparatus for producing snow using ultrasonic waves
WO2001067058A8 (en) Method and device for measuring the moment acting upon a component

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP