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  • BSI
    BS EN IEC 61828:2021 Ultrasonics. Transducers. Definitions and measurement methods regarding focusing for the transmitted fields
    Edition: 2021
    $538.63
    / user per year

Description of BS EN IEC 61828:2021 2021

This document

  • provides definitions for the transmitted field characteristics of focusing and nonfocusing transducers for applications in medical ultrasound;

  • relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers;

  • gives measurement methods for obtaining defined field characteristics of focusing and nonfocusing transducers;

  • specifies beam axis alignment methods appropriate for focusing and nonfocusing transducers.

This document relates to focusing ultrasonic transducers operating in the frequency range appropriate to medical ultrasound (0,5 MHz to 40 MHz) for both therapeutic and diagnostic applications. It shows how the characteristics of the transmitted field of transducers can be described from the point of view of design, as well as measured by someone with no prior knowledge of the construction details of a particular device. The transmitted ultrasound field for a specified excitation is measured by a hydrophone in either a standard test medium (for example, water) or in a given medium. This document applies only to media where the field behaviour is essentially like that in a fluid (i.e. where the influence of shear waves and elastic anisotropy is small), including soft tissues and tissue-mimicking gels. Any aspects of the field that affect their theoretical description or are important in design are also included. These definitions would have use in scientific communications, system design and description of the performance and safety of systems using these devices.

This document incorporates definitions from other related standards where possible, and supplies more specific terminology, both for defining focusing characteristics and for providing a basis for measurement of these characteristics.



Standard NumberBS EN IEC 61828:2021
TitleUltrasonics. Transducers. Definitions and measurement methods regarding focusing for the transmitted fields
StatusDefinitive
Publication Date2021-02-10
ReplacesBS EN 61828:2002
Identical National Standard OfEN 61828, IEC 61828
DescriptorsClinical investigation instruments, Transducers, Wave properties and phenomena, Ultrasonic frequencies, Electrical medical equipment, Ultrasonic medical apparatus, Focusing, Transmittance, Ultrasonic devices, Radiology apparatus (medical), Medical equipment, Ultrasonics
ICS17.140.50 Electroacoustics
CommitteeEPL/87
ISBN978 0 580 90717 3
PublisherBSI
Pages118

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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