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  • BS EN 61220:1995

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Ultrasonics. Fields. Guidance for the measurement and characterization of ultrasonic fields generated by medical ultrasonic equipment using hydrophones in the frequency range 0.5 MHz to 15 MHz

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-05-2008

    Language(s):  English

    Published date:  15-10-1995

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Introduction
    Clause
    1 Scope
    2 Normative references
    3 List of symbols
    4 Types of medical ultrasonic equipment
        4.1 Pulse-echo and pulsed Doppler equipment
        4.2 Continuous-wave Doppler systems
        4.3 Therapy transducers
    5 Measuring conditions
        5.1 Choice of size of the hydrophone active element
        5.2 Hydrophone cable length and amplifiers
        5.3 Rotation of the hydrophone
        5.4 Hydrophone positioning
        5.5 Avoiding reflection effects using membrane
             hydrophones
    6 Simplified procedures and guidelines
        6.1 Procedures
        6.2 Useful relationships between acoustical
             parameters
    7 Acoustic parameter specification
    Annexes
    A (normative) Bandwidth and spatial-averaging
                   corrections
    B (informative) Bibliography
    ZA (normative) Other international standards quoted in
                   this standard with the references of the
                   relevant European publications

    Abstract - (Show below) - (Hide below)

    Includes procedures for correcting for limitations caused by use of hydrophones with finite bandwidth and active element size.

    General Product Information - (Show below) - (Hide below)

    Committee EPL/87
    Development Note Also numbered as IEC 61220 Supersedes 91/26432 DC (11/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    BS EN 61161:2013 Ultrasonics. Power measurement. Radiation force balances and performance requirements
    BS EN 61101:1994 Specification for absolute calibration of hydrophones using the planar scanning technique in the frequency range 0,5 MHz to 15 MHz
    BS EN 61102:1994 Specification for measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0.5 MHz to 15 MHz
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