IEC 61157-2013 pdf free

IEC 61157-2013 pdf free.Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment.
4.2 Requirements for the reporting of acoustic output information
Three standard formats for the distribution of acoustic output data are defined: technical data sheets, detailed operating mode data sheets, and background information.
4.2.1 Technical data sheets information format
The following format is defined for the reporting of information in the form of technical data sheets.
One set of values for the five parameters, a) to e) below, shall be given for each transducer assembly and ultrasound instrument console.
The maximum values of parameters a) to d) shall be chosen from the full information on all modes reported in accordance with 4.2.2. The reporting of data shall include reference to the mode which generates each of the reported maximum values,
a) Temporal-average power output. For scanning modes, this shall be the total power output of all the acoustic pulses. A statement shall be made as to whether the power output can be controlled by the user.
b) Peak-rarefactional acoustic pressure in the plane perpendicular to the beam axis containing the maximum pulse-pressure-squared integral (or maximum mean square acoustic pressure for continuous wave systems) in the whole ultrasonic field.
C) Output beam intensity.
d) Spatial-peak temporal-average Intensity in the whole ultrasonic field.
e) Nominal frequency.
4.2.2 Detailed operating mode data sheets information format
The following format is defined for the presentation of detailed operating mode data sheets. Information shall be given only for all discrete-operating modes unless the system can operate only in combined-operating modes. in which case refer to 4.1.
The acoustical parameters a) to d) represent the maximum values for a particular transducer assembly and associated ultrasound Instrument console. Where not specified, the rest of the parameters refer to the operating conditions which yield these maximum acoustic parameters.
NOTE 1 See Annex A for an example of the reporting of the acoustic output information for an automatic scanning
system.
The following information shall be reported.
a) Temporal-average power output. For scanning modes, this shall be the total power output of all the acoustic pulses.
b) Peak-rarefactional acoustic pressure (Pr) in the plane perpendicular to the beam axis containing the maximum pulse-pressure-squared Integral (or maximum mean square acoustic pressure for continuous wave systems) in the whole ultrasonic field.
C) Output beam intensity,
d) Spatial-peak temporal-average intensity (1spta) in the whole ultrasonic field. For scanning modes, this shall be for the central scan line (including overlapping scan line contributions in accordance with IEC 62127-1).
e) Ultrasound instrument console settings (system settings) which yield the values specified in a) to d). If the system settings differ in a), b), C), or d) then the system settings shall be specified separately for the different parameters.IEC 61157 pdf download.