IEC 62127-1:2007+AMD1:2013 CSV

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms, definitions and symbols
4 List of symbols
5 Measurement requirements
6 Measurement procedure
7 Beam characterization
8 Requirements for specific ultrasonic fields
9 Compliance statement
Annex A (informative) - General rationale
Annex B (informative) - Hydrophones and positioning
Annex C (informative) - Acoustic pressure and intensity
Annex D (informative) - Voltage to pressure conversion
Annex E (informative) - Correction for spatial averaging
Annex F (informative) - Acoustic output parameters for
                        multi-mode medical ultrasonic fields
                        in the absence of scan-frame
                        synchronization
Annex G (informative) - Propagation medium and degassing
Annex H (informative) - Specific ultrasonic fields
Annex I (informative) - Assessment of uncertainty in the
                        acoustic quantities obtained by
                        hydrophone measurements
Annex J (informative) - Transducer and hydrophone positioning
                        systems
Annex K (informative) - Beamwidth midpoint method
Bibliography

IEC 62127-1:2007+A1:2013 specifies methods of use of calibrated hydrophones for the measurement in liquids of acoustic fields generated by ultrasonic medical equipment operating in the frequency range up to 40 MHz. The objectives of this standard are:
- to define a group of acoustic parameters that can be measured on a physically sound basis;
- to define a second group of parameters that can be derived under certain assumptions from these measurements, and called derived intensity parameters;
- to define a measurement procedure that may be used for the determination of acoustic pressure parameters;
- to define the conditions under which the measurements of acoustic parameters can be made in the frequency range up to 40 MHz using calibrated hydrophones;
- and to define procedures for correcting, for limitations caused by the use of hydrophones with finite bandwidth and finite active element size. IEC 62127-1, IEC 62127-2 and IEC 62127-3 are being published simultaneously. Together these cancel and replace IEC 60866:1987, IEC 61101:1991, IEC 61102:1991, IEC 61220:1993 and IEC 62092:2001. The contents of the corrigendum of August 2008 have been included in this copy. The French version of this standard has not been voted upon. This consolidated version consists of the first edition (2007) and its amendment 1 (2013). Therefore, no need to order amendment in addition to this publication.