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  • BSI
    BS EN 61161:2013 Ultrasonics. Power measurement. Radiation force balances and performance requirements
    Edition: 2013
    $526.05
    / user per year

Description of BS EN 61161:2013 2013

IEC 61161:2013 specifies a method of determining the total emitted acoustic power of ultrasonic transducers based on the use of a radiation force balance; establishes general principles for the use of radiation force balances in which an obstacle (target) intercepts the sound field to be measured; establishes limitations of the radiation force method related to cavitation and temperature rise; establishes quantitative limitations of the radiation force method in relation to diverging and focused beams; provides information on estimating the acoustic power for diverging and focused beams using the radiation force method; and provides information on assessment of overall measurement uncertainties. This International Standard is applicable to the measurement of ultrasonic power up to 1 W based on the use of a radiation force balance in the frequency range from 0,5 MHz to 25 MHz; the measurement of ultrasonic power up to 20 W based on the use of a radiation force balance in the frequency range 0,75 MHz to 5 MHz; the measurement of total ultrasonic power in well-collimated, diverging and focused ultrasonic fields; and to the use of radiation force balances of the gravimetric type or force feedback type. This third edition cancels and replaces the second edition published in 2006. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- whereas the second edition tacitly dealt with circular transducers only, the present edition as far as possible deals with both circular and rectangular transducers, including a number of symbols for rectangular transducers;
- attention is paid to focused cases and the influence of scanning has been added;
- the method of calibrating the radiation force balance now depends on whether the set-up is used as a primary or as secondary measurement tool;
- and Annex B (basic formulae) has been updated and in Annex C the buoyancy change method is mentioned (see also future IEC 62555).

Standard NumberBS EN 61161:2013
TitleUltrasonics. Power measurement. Radiation force balances and performance requirements
StatusDefinitive
Publication Date2013-05-31
ReplacesBS EN 61161:2007
Identical National Standard OfIEC 61161:2013, EN 61161:2013
DescriptorsRadiant flux density, Power measurement, Flux (rate), Ultrasonics, Testing conditions, Transducers, Liquids, Acoustic measurement, Accuracy, Formulae (mathematics), Acoustics, Test equipment, Ultrasonic frequencies
ICS17.140.50 Electroacoustics
CommitteeEPL/87
ISBN978 0 580 71712 3
PublisherBSI
Pages54

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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