BS EN 61689:1997 - Ultrasonics. Physiotherapy systems. Performance requirements and methods of measurement in the frequency range 0.5 MHz to 5 MHz
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This International Standard is applicable 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.
This standard only relates to ultrasonic physiotherapy equipment employing a single plane circular transducer per treatment head, producing static beams perpendicular to the face of the treatment head in accordance with present practice.
This standard specifies:
- methods of measurement and characterization of the output performance of ultrasonic physiotherapy equipment based on reference testing methods;
- characteristics to be declared by manufacturers of ultrasonic physiotherapy equipment based on reference testing methods;
- requirements for performance and safety of the ultrasonic field generated by ultrasonic physiotherapy equipment;
- methods of measurement and characterization of the output performance of ultrasonic physiotherapy equipment based on routine testing methods;
- acceptance criteria for aspects of performance of ultrasonic physiotherapy equipment based on routine testing methods.
Therapeutic value and methods of use of ultrasonic physiotherapy equipment are not
covered by the scope of this standard.
