| Publication CODE |
Title |
| NBN EN 61161:2013 (2013-04) |
ULTRASONICS - POWER MEASUREMENT - RADIATION FORCE BALANCES AND PERFORMANCE REQUIREMENTS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P. |
Description
This 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 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. (See also Clause A.1)
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.
|
| Class |
C97
(TELECOMMUNICATIONS - ELECTRONIC ELECTRO ACOUSTICS - AUDIOVISUAL EQUIPMENT)
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 61161:2013.
For the series NBN EN 50XXX, the standards are however complete.
|
EN version
|
FR version
|
DE version
|
|
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
Replaces
NBN EN 61161:2007
|
|
| BEC Approval |
2013-03-06 |
| NBN Approval |
2013-06-21 |
| Belgian Official Journal |
2013-08-28 |
| Registration |
136701 |
| ICS-Code (International Standards Classification) |
17.140.50
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2013-03-06 |
| Date of availability (d.a.v.) |
2013-04-12 |
| Date of announcement (d.o.a.) |
2013-06-06 |
| Date of publication (d.o.p.) |
2013-12-06 |
| Date of withdrawal former edition (d.o.w.) |
2016-03-06 |
|
