IEC TS 62903:2018

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

IEC TS 62903:2018, which is a Technical Specification,
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:
i) circular spherically curved concave focusing transducers without a centric hole working in the linear amplitude range,
ii) measurements in the frequency range 0,5 MHz to 15 MHz, and
iii) acoustic pressure amplitudes in the focused field within the linear amplitude range.

Vodne turbine, akumulacijske črpalke in črpalne turbine – Razpisna dokumentacija – 3. del: Smernice za tehnične specifikacije Peltonovih turbin

General Information

• Status: Published
• Publication Date: 08-Jan-2018
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.140.50 - Electroacoustics
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: TC 87 - Ultrasonics
• Drafting Committee: WG 8 - TC 87/WG 8
• Current Stage: DELPUB - Deleted Publication
• Start Date: 15-Feb-2022
• Completion Date: 13-Jun-2023
• Ref Project: SIST IEC/TR 61366-3:1999 - Hydraulic turbines, storage pumps and pump-turbines - Tendering documents - Part 3: Guidelines for technical specifications for Pelton turbines

Relations

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

Standards Content (Sample)

IEC TS 62903
®

Edition 1.0 2018-01
TECHNICAL
SPECIFICATION



Ultrasonics – Measurements of electroacoustical parameters and acoustic
output power of spherically curved transducers using the self-reciprocity
method
IEC TS 62903:2018-01(en)

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

®


Edition 1.0 2018-01




TECHNICAL



SPECIFICATION



















Ultrasonics – Measurements of electroacoustical parameters and acoustic

output power of spherically curved transducers using the self-reciprocity

method


























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ELECTROTECHNICAL


COMMISSION





ICS 17.140.50 ISBN 978-2-8322-5026-6



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® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TS 62903:2018  IEC 2018
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Symbols . 12
5 General . 13
6 Requirements of the measurement system . 14
6.1 Apparatus configuration . 14
6.2 Measurement water tank .
...

SLOVENSKI STANDARD
SIST IEC/TR 61366-3:1999
01-april-1999
9RGQHWXUELQHDNXPXODFLMVNHþUSDONHLQþUSDOQHWXUELQH±5D]SLVQDGRNXPHQWDFLMD
±GHO6PHUQLFH]DWHKQLþQHVSHFLILNDFLMH3HOWRQRYLKWXUELQ
Hydraulic turbines, storage pumps and pump-turbines - Tendering documents - Part 3:
Guidelines for technical specifications for Pelton turbines
Ta slovenski standard je istoveten z: IEC/TR 61366-3
ICS:
27.140 Vodna energija Hydraulic energy engineering
SIST IEC/TR 61366-3:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST IEC/TR 61366-3:1999

---------------------- Page: 2 ----------------------

SIST IEC/TR 61366-3:1999
TECHNICAL
IEC
REPORT – TYPE 3
61366-3
First edition
1998-03
Hydraulic turbines, storage pumps
and pump-turbines –
Tendering documents –
Part 3:
Guidelines for technical specifications
for Pelton turbines
Turbines hydrauliques, pompes d’accumulation
et pompes-turbines –
Documents d’appel d’offres –
Partie 3:
Guide des spécifications techniques pour les turbines Pelton
 IEC 1998  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
V
International Electrotechnical Commission
For price, see current catalogue

---------------------- Page: 3 ----------------------

SIST IEC/TR 61366-3:1999
– 2 – 61366-3 IEC:1998(E)
CONTENTS
Page
FOREWORD . 4
Clause
0 Introduction to technical specifications . 7
1 Scope. 9
2 Reference documents . 9
3 Technical requirements. 9
3.1 Scope of work. 9
3.2 Limits of the contract . 10
3.3 Supply by Employer . 10
3.4 Design conditions . 11
3.5 Technical performance and other guarantees. 14
3.6 Mechanical design criteria . 17
3.7 Design documentation . 17
3.8 Materials and construction . 18
3.9 Shop inspection and testing . 19
4 Technical specifications for fixed/embedded components. 20
4.1 Manifold . 21
4.2 Turbine housing. 21
5 Technical specifications for stationary/removable components . 22
5.1 Branch pipe (including intake pipe and nozzle pipe). 22
5.2 Upper turbine housing (if not embedded). 22
5.3 Turbine cover . 23
5.4 Brake jet assembly . 23
6 Technical specifications for injector/deflector system . 23
6.1 Injector system . 23
6.2 Deflector system. 24
7 Technical specifications for rotating parts, guide bearings and seals . 24
7.1 Runner . 24
7.2 Main shaft .
...