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ULTRASONICS - FIELD CHARACTERIZATION - IN SITU EXPOSURE ESTIMATION IN FINITE-AMPLITUDE ULTRASONIC BEAMS

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2008

Publisher

National Standards Authority of Ireland

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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 List of symbols
5 Equipment required
6 Test methods
  6.1 Establishing quasi-linear conditions
      6.1.1 The local distortion parameter
      6.1.2 Upper limit for quasi-linear conditions for sigma[q]
      6.1.3 Range of applicability for quasi-linear conditions
  6.2 Measurement procedure for estimated in situ exposure
      6.2.1 Identification of quasi-linear conditions
      6.2.2 Tables of limiting mean peak acoustic pressure
      6.2.3 Measurement of acoustic quantities under quasi-linear
            conditions
      6.2.4 Measurement of the scaling factor
      6.2.5 Calculation of attenuated acoustic quantities
  6.3 Uncertainties
Annex A (informative) Review of evidence
Annex B (informative) Review of alternative methods for managing
        finite-amplitude effects during field measurement
Annex C (informative) Parameters to quantify nonlinearity
Annex D (informative) Tables of upper limits for mean peak
        acoustic pressure for quasi-linear conditions
Bibliography

Specifies means to allow 'attenuated' acoustic quantities to be calculated under conditions where the associated acoustic measurements, made in water using standard procedures, may be accompanied by significant finite-amplitude effects.

DevelopmentNote	For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType	Standard
Pages	42
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
CLC/TS 61949:2008	Identical
IEC TS 61949:2007	Identical

IEC 62127-1:2007+AMD1:2013 CSV	Ultrasonics - Hydrophones - Part 1: Measurement and characterizationof medical ultrasonic fields up to 40 MHz
IEC 60601-2-37:2007+AMD1:2015 CSV	Medical electrical equipment - Part 2-37: Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment
IEC 61161:2013	Ultrasonics - Power measurement - Radiation force balances and performance requirements
IEC 61828:2001	Ultrasonics - Focusing transducers - Definitions and measurement methods for the transmitted fields
EN 61161:2013	Ultrasonics - Power measurement - Radiation force balances and performance requirements
IEC 62359:2010+AMD1:2017 CSV	Ultrasonics - Field characterization - Test methods for the determination of thermal and mechanical indices related to medical diagnostic ultrasonic fields
EN 62127-1:2007/A1:2013	ULTRASONICS - HYDROPHONES - PART 1: MEASUREMENT AND CHARACTERIZATION OF MEDICAL ULTRASONIC FIELDS UP TO 40 MHZ (IEC 62127-1:2007/A1:2013)

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S.R. CLC/TS 61949:2008

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Table of Contents

Abstract

General Product Information

International Equivalents

Standards Referencing This Book

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