International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61161:2007
Title Ultrasonics - Power measurement - Radiation force balances and performance requirements
Project Number 17176
Abstract/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.


Current Stage code 6060
Current Stage code date 2007-04-05
Current Stage code deadline 2007-12-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 87
Reference Document IEC 61161:2006 (EQV)
ICS 17.140.50 - Electroacoustics
Keywords Ultrasonics; Power measurement; Radiation; Force balance
Note Superseded by EN 61161:2013
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-04-05 2007-12-01 export to doc file  EN  FR  DE
5099 2007-03-01 2007-05-01  
5061 2007-01-29 2007-03-01  
5060 2006-09-15 2006-12-31 export to doc file  EN
5020 2005-12-23 2006-05-26  
1090 2005-12-20 2005-12-23  

Implementation Dates

date of Ratification (DOR) (1) 2007-03-01
date of Availability (DAV) (2) 2007-04-05
date of Announcement (DOA) (3) 2007-06-01
date of Publication (DOP) (4) 2007-12-01
date of Withdrawal (DOW) (5) 2010-03-01


Supersedes EN 61161:1994
EN 61161:1994/A1:1998
Superseded by EN 61161:2013
Normative reference (6) IEC 60050-801:1994
IEC 60854:1986
IEC 60866:1987
EN 61101:1993
EN 61102:1993
EN 61689:1996
EN 61846:1998

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.