BS EN 61161:2007 PDF

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 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; • the measurement of ultrasonic power up to 20 W based on the use of a radiation force balance in the frequency range 0,75 MHz to 5 MHz; • the measurement of total ultrasonic power of transducers, preferably with well-collimated beams; • the use of radiation force balances of the gravimetric type or force feedback type. NOTE The titles of all publications referred to in this Standard are listed in the Bibliography.

BS EN 61161:2007 Referenced Document

2013 BS EN 61161:2013 Ultrasonics. Power measurement. Radiation force balances and performance requirements
2007 BS EN 61161:2007 Ultrasonics - Power measurement - Radiation force balances and performance requirements