MD3820F1 - Procedeu de etalonare a tensometrului acustic - Google Patents

Procedeu de etalonare a tensometrului acustic Download PDF

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Publication number
MD3820F1
MD3820F1 MDA20070318A MD20070318A MD3820F1 MD 3820 F1 MD3820 F1 MD 3820F1 MD A20070318 A MDA20070318 A MD A20070318A MD 20070318 A MD20070318 A MD 20070318A MD 3820 F1 MD3820 F1 MD 3820F1
Authority
MD
Moldova
Prior art keywords
tensometer
acoustic
sample
temperature
indications
Prior art date
Application number
MDA20070318A
Other languages
English (en)
Other versions
MD3820G2 (ro
Inventor
Veaceslav Bobrenco
Mihail Brandis
Alexandru POCLADOV
Vladimir Antipin
Original Assignee
Intreprinderea De Cercetare Si Productie "Mdr Grup" S.R.L.
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 Intreprinderea De Cercetare Si Productie "Mdr Grup" S.R.L. filed Critical Intreprinderea De Cercetare Si Productie "Mdr Grup" S.R.L.
Priority to MDA20070318A priority Critical patent/MD3820G2/ro
Publication of MD3820F1 publication Critical patent/MD3820F1/ro
Publication of MD3820G2 publication Critical patent/MD3820G2/ro

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Inventia se refera la controlul nedistructiv al calitatii materialelor prin procedee acustice, in special la procedeele de etalonare a tensometrelor acustice, care pot fi folosite pentru determinareatensiunilor la modificarea temperaturii obiectului supus controlului, de exemplu a sinelor de cale ferata. Procedeul de etalonare a tensometrului acustic consta in aceea ca se excita undele ultrasonore in mostra obiectului, care se propaga in mediul elastic pretensionat, se masoara parametrii de informare ai acestor unde si pe baza datelor obtinute se determina valorile tensiunilor ce apar in mostra obiectului, in dependenta de marimea valorilor carora se efectueaza etalonarea tensometrului acustic, comparand indicatiile utilajului de masuratcu indicatiile tensometrului supus etalonarii. Noutatea consta in aceea ca se masoara pe baza fixa timpul de propagare a undelor ultrasonore si temperatura mostrei obiectului, se modifica temperaturamostrei obiectului, se masoara repetat parametriimentionati si se determina valoarea solicitarilorde temperatura Sigma T, care apar in mostra obiectului la diferite temperaturi in interiorul intervalului supus incercarii, conform ecuatiei:totodataetalonarea tensometrului acustic se efectueaza comparand valoarea calculata Sigma T cu indicatiile tensometrului supus etalonarii cu corectarea lui ulterioara.
MDA20070318A 2007-11-15 2007-11-15 Procedeu de etalonare a tensometrului acustic MD3820G2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20070318A MD3820G2 (ro) 2007-11-15 2007-11-15 Procedeu de etalonare a tensometrului acustic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20070318A MD3820G2 (ro) 2007-11-15 2007-11-15 Procedeu de etalonare a tensometrului acustic

Publications (2)

Publication Number Publication Date
MD3820F1 true MD3820F1 (ro) 2009-01-31
MD3820G2 MD3820G2 (ro) 2009-08-31

Family

ID=40347774

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20070318A MD3820G2 (ro) 2007-11-15 2007-11-15 Procedeu de etalonare a tensometrului acustic

Country Status (1)

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MD (1) MD3820G2 (ro)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD319P2 (ro) * 1995-01-30 1996-04-30 Institutul De Cercetari Stiintifice, Selectie Si Tehnologii Pentru Pomicultura Soi de nuc Kalaraşskii

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405596B1 (en) * 2000-10-13 2002-06-18 Chicago Bridge & Iron Company Ultrasonic austenitic weld seam inspection method and apparatus
MD2682G2 (ro) * 2002-07-17 2005-11-30 Сергей ГЕРАСИМЕНКО Pompă centrifugă
SE527074C2 (sv) * 2003-06-23 2005-12-20 Impressonic Ab Icke-förstörande materialprovning
EP1726947A1 (en) * 2005-04-20 2006-11-29 Sika Technology AG device and method for ultrasonically determining the dynamic elastic modulus of a material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD319P2 (ro) * 1995-01-30 1996-04-30 Institutul De Cercetari Stiintifice, Selectie Si Tehnologii Pentru Pomicultura Soi de nuc Kalaraşskii

Also Published As

Publication number Publication date
MD3820G2 (ro) 2009-08-31

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees