1 Scope
This International Standard
specifies a method of determining the total emitted acoustic power of ultrasonic transducers based on the use of a radiation force balance;
establishes general principles for the use of radiation force balances in which an obstacle (target) intercepts the sound field to be measured;
establishes limitations of the radiation force method related to cavitation and temperature rise;
establishes quantitative limitations of the radiation force method in relation to diverging and focused beams;
provides information on estimating the acoustic power for diverging and focused beams
using the radiation force method;
provides information on assessment of overall measurement uncertainties.
This International Standard is applicable to:
the measurement of ultrasonic power up to 1 W based on the use of a radiation force balance in the frequency range from 0,5 MHz to 25 MHz;