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IEC TS 62903:2023

(Main)

Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method

Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method

IEC TS 62903:2023 is available as IEC TS 62903:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC TS 62903:2023:
a ) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic transducer calibration,
b) establishes the measurement conditions and experimental procedure required to determine the transducer's electroacoustic parameters and acoustic output power using the self-reciprocity method,
c) establishes the criteria for checking the reciprocity of these transducers and the linear range of the focused field, and
d) provides guiding information for the assessment of the overall measurement uncertainties for radiation conductance.
This document is applicable to:
1) circular spherically curved concave focusing transducers without a centric hole working in the linear amplitude range,
2) measurements in the frequency range 0,5 MHz to 15 MHz, and
3) acoustic pressure amplitudes in the focused field within the linear amplitude range.
Characterization and sensitivity calibration of hydrophones using the reciprocity method are not addressed in this document but covered in IEC 62127-2 and IEC 60565-1.
IEC TS 62903:2023 cancels and replaces the first edition published in 2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Several quantities are recognized as complex-valued quantities in the definitions and in the main text.
b) Annex I was added to provide typical measurement ranges and to provide example calibration results.

General Information

Status
Published
Publication Date
12-Jun-2023
ICS
17.140.50 - Electroacoustics
Technical Committee
TC 87 - Ultrasonics
Drafting Committee
WG 8 - TC 87/WG 8
Current Stage
PPUB - Publication issued
Start Date
11-Jul-2023
Completion Date
13-Jun-2023
Ref Project

Relations

Revises
IEC TS 62903:2018 - Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method
Effective Date
05-Sep-2023

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IEC TS 62903:2023 - Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method Released:6/13/2023
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IEC TS 62903
®

Edition 2.0 2023-06
TECHNICAL
SPECIFICATION



Ultrasonics – Measurements of electroacoustical parameters and acoustic
output power of spherically curved transducers using the self-reciprocity
method
IEC TS 62903:2023-06(en)

---------------------- Page: 1 ----------------------
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IEC TS 62903

®


Edition 2.0 2023-06




TECHNICAL



SPECIFICATION




















Ultrasonics – Measurements of electroacoustical parameters and acoustic

output power of spherically curved transducers using the self-reciprocity

method


























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ICS 17.140.50 ISBN 978-2-8322-7107-0



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® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC TS 62903:2023  IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Symbols . 13
5 General . 14
6 Requirements of the measurement system . 15
6.1 Apparatus configuration . 15
6.2 Measurement water tank . 15
6.3 Fixing, positioning and orientation systems . 15
6.4 Reflector . 15
6
...

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