11/30230872 DC : 0
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BS EN 61689 - ULTRASONICS - PHYSIOTHERAPY SYSTEMS - FIELD SPECIFICATIONS AND METHODS OF MEASUREMENT IN THE FREQUENCY RANGE 0,5 MHZ TO 5 MHZ
Hardcopy , PDF
05-31-2013
English
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) - The 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
Annex K (informative) - Bibliography
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