I.S. EN 61689:2013

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 List of 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 (informative) - 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 (A[BCS]) at the face
        of the treatment head to the effective
        radiating area (A[ER])
Annex F (informative) - Determining acoustic power
        through radiation force measurements
Annex G (informative) - Validity of low-power measurements
        of the beam cross-sectional area (A[BCS])
Annex H (informative) - Influence of hydrophone effective
        diameter
Annex I (informative) - Effective radiating area measurement
        using a radiation force balance and absorbing
        apertures
Annex J (informative) - Guidance on uncertainty determination
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Applies to ultrasonic equipment designed for physiotherapy consisting of an ultrasonic transducer generating continuous or quasi-continuous wave ultrasonic energy in the frequency range 0,5 MHz to 5 MHz.