GR3007373T3 - - Google Patents

Info

Publication number
GR3007373T3
GR3007373T3 GR930400581T GR930400581T GR3007373T3 GR 3007373 T3 GR3007373 T3 GR 3007373T3 GR 930400581 T GR930400581 T GR 930400581T GR 930400581 T GR930400581 T GR 930400581T GR 3007373 T3 GR3007373 T3 GR 3007373T3
Authority
GR
Greece
Prior art keywords
signal
intensity
sound
utilising
digital signal
Prior art date
Application number
GR930400581T
Other languages
Greek (el)
English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10627271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GR3007373(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of GR3007373T3 publication Critical patent/GR3007373T3/el

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
    • G01N29/36—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
    • G01N29/14—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 using acoustic emission techniques
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2693—Rotor or turbine parts

Landscapes

  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Saccharide Compounds (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
GR930400581T 1987-11-20 1993-03-16 GR3007373T3 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878727178A GB8727178D0 (en) 1987-11-20 1987-11-20 Monitoring accoustic emissions

Publications (1)

Publication Number Publication Date
GR3007373T3 true GR3007373T3 (enExample) 1993-07-30

Family

ID=10627271

Family Applications (1)

Application Number Title Priority Date Filing Date
GR930400581T GR3007373T3 (enExample) 1987-11-20 1993-03-16

Country Status (10)

Country Link
EP (1) EP0317322B1 (enExample)
JP (1) JPH01156627A (enExample)
AT (1) ATE85122T1 (enExample)
AU (1) AU615006B2 (enExample)
BR (1) BR8806070A (enExample)
DE (1) DE3877912T2 (enExample)
ES (1) ES2038311T3 (enExample)
GB (1) GB8727178D0 (enExample)
GR (1) GR3007373T3 (enExample)
ZA (1) ZA888570B (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975855A (en) * 1989-03-14 1990-12-04 Rem Technologies, Inc. Shaft crack detection method
WO1991010904A1 (en) * 1990-01-11 1991-07-25 Pulp And Paper Research Institute Of Canada Acoustic emission monitoring of wood chip refiners
GB9022546D0 (en) * 1990-10-17 1990-11-28 Rolls Royce & Ass An apparatus and a method for locating a source of acoustic emission in a material
FI93996C (fi) * 1992-11-13 1995-06-26 Ensio Laine Menetelmä ja laite jauhemaisten materiaalien kompaktoinnin luonnehtimiseksi ja tarkkailemiseksi
US5625150A (en) * 1994-08-18 1997-04-29 General Electric Company Integrated acoustic leak detection sensor subsystem
JP3358167B2 (ja) * 1995-05-12 2002-12-16 北海道大学長 被検体同定方法、装置およびシステム
DE10006313B4 (de) * 2000-02-12 2008-04-10 Sennheiser Electronic Gmbh & Co. Kg Anlagenüberwachungssystem
GB0031564D0 (en) 2000-12-22 2001-02-07 Borealis Tech Oy Viscosity measurement
DE10115267C2 (de) 2001-03-28 2003-06-18 Aloys Wobben Verfahren zur Überwachung einer Windenergieanlage
JP5285147B2 (ja) 2008-05-21 2013-09-11 ジョン クレーン インコーポレーテッド シール監視及び制御システム
GB201020381D0 (en) * 2010-12-02 2011-01-12 Crane John Uk Ltd Component failure detection system
BR122023003434B1 (pt) 2016-02-23 2024-01-30 John Crane Uk Ltd Sistema de vedação mecânica configurado para detectar autonomamente uma perda de lubrificação dentro de uma interface de vedação deslizante de uma vedação mecânica, sistema de vedação mecânica que tem um subsistema de diagnóstico preditivo customizável configurado para ser adaptado para se adequar às necessidades individuais do onsumidor, condições ambientais particulares e/ou aplicações específicas, e sistema de vedação mecânica configurado para detectar condições de operação e fornecer avaliações de integridade em tempo real a um usuário durante a operação
WO2017168226A1 (en) * 2016-03-30 2017-10-05 3D Signals Ltd. Acoustic monitoring of machinery
US9989501B2 (en) 2016-05-10 2018-06-05 The Boeing Company Method and apparatus for acoustic emissions testing
US10564130B2 (en) * 2016-05-10 2020-02-18 The Boeing Company Method and apparatus for acoustic emissions testing
US10839076B2 (en) 2016-12-21 2020-11-17 3D Signals Ltd. Detection of cyber machinery attacks
US10916259B2 (en) 2019-01-06 2021-02-09 3D Signals Ltd. Extracting overall equipment effectiveness by analysis of a vibro-acoustic signal
US11656203B2 (en) * 2020-12-10 2023-05-23 Batfer Investment S.A. Apparatus and method for determining solids level in a sand separator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078434A (en) * 1974-05-20 1978-03-14 Bbc Brown Boveri & Company Limited Method and apparatus for determining the parameters of natural vibration of a system
SE418228B (sv) * 1975-03-14 1981-05-11 British Steel Corp Elektronisk overvakningsanordning for analysering av mekaniska vibrationsmonster hos maskiner och andra objekt exempelvis lager
JPS57136127A (en) * 1980-12-19 1982-08-23 Hitachi Ltd Rubbing detecting device
AU7192687A (en) * 1986-04-28 1987-10-29 Vipac Pty. Ltd. Vibrational analysis

Also Published As

Publication number Publication date
JPH01156627A (ja) 1989-06-20
EP0317322A3 (en) 1990-08-16
BR8806070A (pt) 1989-08-08
DE3877912D1 (de) 1993-03-11
GB8727178D0 (en) 1987-12-23
DE3877912T2 (de) 1993-05-19
AU2517488A (en) 1989-05-25
EP0317322A2 (en) 1989-05-24
ATE85122T1 (de) 1993-02-15
ZA888570B (en) 1990-07-25
ES2038311T3 (es) 1993-07-16
AU615006B2 (en) 1991-09-19
EP0317322B1 (en) 1993-01-27

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