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CEI EN 61161

Ultrasonics - Power measurement - Radiation force balances and performance requirements

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Organization: CEI
Publication Date: 1 February 2014
Status: active
Page Count: 56
ICS Code (Electroacoustics): 17.140.50
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;
  • 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 in well-collimated, diverging and focused ultrasonic fields;
  • the use of radiation force balances of the gravimetric type or force feedback type.

NOTE 1 A focused beam is converging in the pre-focal range and diverging beyond focus.

NOTE 2 Ultrasonic power measurement in the high intensity therapeutic ultrasound (HITU) range, i.e. beyond 1 W or 20 W, respectively, is dealt with in the future IEC 62555.

Document History

CEI EN 61161
February 1, 2014
Ultrasonics - Power measurement - Radiation force balances and performance requirements
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...
October 1, 2007
Ultrasonics - Power measurement - Radiation force balances and performance requirements
La presente Norma, che fornisce bilanci della forza di radiazione e requisiti di prestazione fino a 1 W nel campo di frequenza compreso fra 0,5 MHz e 25 MHz e fino a 20 W nel campo di frequenza...
November 1, 1999
Misure della potenza ultrasonora nei liquidi nella gamma di frequenze da 0,5 MHz a 25 MHz
La presente Norma é annullata e sostituita dalla Nuova edizione, CEI EN 61161:2007-10 (CEI 87-3); tuttavia rimane applicabile fino al 01-03-2010.
October 1, 1996
Misure della potenza ultrasonora nei liquidi nella gamma di frequenze da 0,5 MHz a 25 MHz
La presente Norma prescrive un metodo per determinare la potenza totale ultrasonora emessa dai trasduttori ultrasonori e stabilisce i principi generali per utilizzare le bilance a forza di radiazione...

References

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