EN 61391-2:2010
(Main)Ultrasonics - Pulse-echo scanners - Part 2: Measurement of maximum depth of penetration and local dynamic range
Ultrasonics - Pulse-echo scanners - Part 2: Measurement of maximum depth of penetration and local dynamic range
IEC 61391-2:2010(E) defines terms and specifies methods for measuring the maximum depth of penetration and the local dynamic range of real time ultrasound B MODE scanners. The types of transducers used with these scanners include: - mechanical probes; - electronic phased arrays; - linear arrays; - curved arrays; - two-dimensional arrays; - three-dimensional scanning probes based on a combination of the above types. All scanners considered are based on pulse-echo techniques. The test methodology is applicable for transducers operating in the 1 MHz to 15 MHz frequency range operating both in fundamental mode and in harmonic modes that extend to 15 MHz. However, testing of harmonic modes above 15 MHz is not covered by this standard.
Ultraschall - Impuls-Echo-Scanner - Teil 2: Messung der maximalen Eindringtiefe und des lokalen Dynamikbereichs
Ultrasons - Scanners à impulsion et écho - Partie 2 : Mesure de la profondeur maximale de pénétration et de la plage dynamique locale
La CEI 61391-2:2010 définit les termes et spécifie les méthodes de mesure de la profondeur maximale de pénétration et de la plage dynamique locale des scanners ultrasoniques en temps réel, en mode B. Les types de transducteurs utilisés avec ces scanners comprennent ce qui suit: - sondes à balayage mécanique; - réseaux de phase électroniques; - réseaux linéaires (barrettes); - réseaux courbes; - réseaux bidimensionnels; - sondes à balayage tridimensionnel, basées sur une combinaison des types ci-dessus. Tous les scanners considérés sont basés sur les techniques "impulsion et écho". La méthodologie d'essai est applicable aux transducteurs fonctionnant dans la gamme des fréquences entre 1 MHz et 15 MHz, en mode fondamental et en modes harmoniques allant jusqu'à 15 MHz. Toutefois, les essais en modes harmoniques, au-dessus de 15 MHz, ne sont pas couverts par la présente norme.
Ultrazvok - Impulzno-odmevni skenerji - 2. del: Meritev največje globine prodiranja in lokalno dinamično območje (IEC 61391-2:2010)
Ta del 61391 opredeljuje izraze in določa metode za meritev največje globine prodiranja in lokalno dinamično območje ultrazvočnih skenerjev B-MODE v realnem času. Vrste pretvornikov, ki se uporabljajo s temi skenerji, vključujejo: - mehanske sonde; - elektronske fazne nize; - linearne nize; - ukrivljene nize; - dvodimenzionalne nize; - tridimenzionalne sonde za skeniranje na osnovi kombinacije zgoraj navedenih vrst. Vsi obravnavani skenerji temeljijo na impulzno-odmevnih tehnikah. Preskusna metodologija velja za pretvornike, ki obratujejo v frekvenčnem razponu med 1 MHz in 15 MHz v osnovnem načinu, in harmoničnih načinih, ki segajo do 15 MHz. Vendar pa ta standard ne zajema preskušanja harmoničnih načinov nad 15 MHz.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2010
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Ultrasonics - Pulse-echo scanners - Part 2: Measurement of maximum depth of
penetration and local dynamic range (IEC 61391-2:2010)
Ultraschall - Impuls-Echo-Scanner - Teil 2: Messung der maximalen Eindringtiefe und
des lokalen Dynamikbereichs (IEC 61391-2:2010)
Ultrasons - Scanners à impulsion et écho - Partie 2 : Mesure de la profondeur maximale
de pénétration et de la plage dynamique locale (CEI 61391-2:2010)
Ta slovenski standard je istoveten z: EN 61391-2:2010
ICS:
11.040.55 'LDJQRVWLþQDRSUHPD Diagnostic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61391-2
NORME EUROPÉENNE
April 2010
EUROPÄISCHE NORM
ICS 17.140.50
English version
Ultrasonics -
Pulse-echo scanners -
Part 2: Measurement of maximum depth of penetration
and local dynamic range
(IEC 61391-2:2010)
Ultrasons - Ultraschall -
Scanners à impulsion et écho - Impuls-Echo-Scanner -
Partie 2 : Mesure de la profondeur Teil 2: Messung der maximalen
maximale de pénétration et de la plage Eindringtiefe und des lokalen
dynamique locale Dynamikbereichs
(CEI 61391-2:2010) (IEC 61391-2:2010)
This European Standard was approved by CENELEC on 2010-04-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61391-2:2010 E
Foreword
The text of document 87/400/CDV, future edition 1 of IEC 61391-2, prepared by IEC TC 87, Ultrasonics,
was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61391-2 on
2010-04-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-01-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-04-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61391-2:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60601-1:2005 NOTE Harmonized as EN 60601-1:2006 (not modified).
IEC 61161:1992 NOTE Harmonized as EN 61161:1994 (not modified).
__________
- 3 - EN 61391-2:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 61391-1 2006 Ultrasonics - Pulse-echo scanners - EN 61391-1 2006
Part 1: Techniques for calibrating spatial
measurement systems and measurement of
system point spread function response
IEC 62127-1 2007 Ultrasonics - Hydrophones - EN 62127-1 2007
Part 1: Measurement and characterization of
medical ultrasonic fields up to 40 MHz
IEC 61391-2 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
Ultrasonics – Pulse-echo scanners –
Part 2: Measurement of maximum depth of penetration and local dynamic range
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 17.140.50 ISBN 2-8318-1075-3
– 2 – 61391-2 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.8
2 Normative references .8
3 Terms and definitions .8
4 General requirement.13
5 Environmental conditions.13
6 Equipment and data required.14
6.1 General .14
6.2 Phantoms.14
6.2.1 Phantoms required .14
6.2.2 Phantom for maximum depth of penetration.14
6.2.3 Phantoms to estimate local dynamic range .15
6.3 Test equipment for measuring local dynamic range .15
6.4 Digitized image data.17
7 Measurement methods .19
7.1 System sensitivity: maximum depth of penetration.19
7.1.1 Scanning system settings .19
7.1.2 Image acquisition .19
7.1.3 Analysis.20
7.2 Local dynamic range .22
7.2.1 Scanning system settings .22
7.2.2 Measurement method .22
7.2.3 Type II testing for measuring local dynamic range .23
7.2.4 Estimating local dynamic range using backscatter contrast.24
Annex A (informative) Phantom for determining maximum depth of penetration .26
Annex B (informative) Local dynamic range using acoustical test objects.28
Bibliography.35
Figure 1 – Arrangement for measuring local dynamic range using an acoustic-signal
injection technique.16
Figure 2 – Arrangement for measuring local dynamic range using an acoustically-
coupled burst generator .17
Figure 3 – Image of the penetration phantom.20
Figure 4 – Mean digitized image data value vs. depth for the phantom image data
(A(j)) and for the noise image data (A'(j)) .21
Figure 5 – Digitized-image data vs. attenuator setting during local dynamic range
measurements using acoustic signal injection.23
Figure 6 – Image of phantom with inclusions (circles) .24
Figure 7 – Ensemble-average mean pixel value vs. backscatter contrast of inclusions.25
Figure A.1 – Phantom for maximum depth of penetration tests.26
Figure B.1 – Possible arrangement of reflectors for determining local dynamic range .29
Figure B.2 – Displayed intensity (or image pixel value) vs. reflector reflection
coefficient .30
Figure B.3 – Flat ended wire test object for determining local dynamic range.32
61391-2 © IEC:2010(E) – 3 –
Figure B.4 – The experimentally observed backscattering cross section of flat-ended
stainless-steel wires as a function of diameter for three frequencies: U 9.6 MHz; :
4.8 MHz; ‘: 2.4 MHz [33].33
– 4 – 61391-2 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ULTRASONICS –
PULSE-ECHO SCANNERS –
Part 2: Measurement of maximum depth
of penetration and local dynamic range
FOREWORD
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indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61391-2 has been prepared by IEC technical committee 87:
Ultrasonics.
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