I.S. EN IEC 61689:2022
Current
The latest, up-to-date edition.
Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz (IEC 61689:2022)
Hardcopy , PDF
English
09-05-2022
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Ultrasonic field specifications
6 Conditions of measurement and test equipment used
7 Type testing reference procedures and measurements
8 Routine measurement procedure
9 Sampling and uncertainty determination
Annex A (normative) Guidance for performance and safety
Annex B (normative) Raster scan measurement and analysis procedures
Annex C (normative) Diametrical or line scan measurement and analysis procedures
Annex D (informative) Rationale concerning the beam cross-sectional area definition
Annex E (informative) Factor used to convert the beam cross-sectional area (ABCS) at the face of th treatment head to the effective radiating area (AER)
Annex F (informative) Determining acoustic power through radiation force measurements
Annex G (informative) Validity of low-power measurements of the beam crosssectional area (ABCS)
Annex H (informative) Influence of hydrophone effective diameter
Annex I (informative) Effective radiating area measurements using a radiation force balance and absorbing apertures
Annex J (informative) Guidance on uncertainty determination
Annex K (informative) Examples of pulse duration and pulse repetition period of amplitude modulated waves
Bibliography
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