17.140.50 - Electroacoustics

IEC 61828:2020 - provides definitions for the transmitted field characteristics of focusing and nonfocusing transducers for applications in medical ultrasound; - relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers; - gives measurement methods for obtaining defined field characteristics of focusing and nonfocusing transducers; - specifies beam axis alignment methods appropriate for focusing and nonfocusing transducers. I...view more

IEC 61828:2020
- provides definitions for the transmitted field characteristics of focusing and nonfocusing transducers for applications in medical ultrasound;
- relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers;
- gives measurement methods for obtaining defined field characteristics of focusing and nonfocusing transducers;
- specifies beam axis alignment methods appropriate for focusing and nonfocusing transducer...view more

This part of IEC 60645 specifies a means of describing the physical characteristics, in terms of
electrical waveforms, of audiometric reference and test signals of short duration and methods
for their measurement.
The object of this document is to ensure that audiometric stimuli of short duration are specified
and measured in the same way and that the calibration of equipment using such signals is
carried out using defined methods.
This document does not describe the method of use of short...view more

IEC 60645-3:2020 specifies a means of describing the physical characteristics, in terms of electrical waveforms, of audiometric reference and test signals of short duration and methods for their measurement.
The object of this document is to ensure that audiometric stimuli of short duration are specified and measured in the same way and that the calibration of equipment using such signals is carried out using defined methods.
This document does not describe the method of use of short-duration ...view more

This document specifies standard aspect ratios for logarithmic or level characteristics
expressed in decibels versus a logarithmic frequency axis and ranges for the radius of polar
diagrams of level. Applications include hard copy printouts, electronic files (e.g., PDF files),
scientific publications, screen displays in computer programs and apps, as well as graphs in
standards.
Informative examples of graphs that conform to the requirements in this document are found in
Annex A.
Although...view more

This part of IEC 60565 specifies methods and procedures for free-field calibration of
hydrophones, as well as individual electroacoustic transducers that can be used as
hydrophones (receivers) and/or projectors (source transducers). Two general types of
calibration are covered within this document: absolute calibration using the method of threetransducer
spherical-wave reciprocity, and relative calibration by comparison with a reference
device which has already been the subject of an absolu...view more

IEC 60263:2020 specifies standard aspect ratios for logarithmic or level characteristics expressed in decibels versus a logarithmic frequency axis and ranges for the radius of polar diagrams of level. Applications include hard copy printouts, electronic files (e.g., PDF files), scientific publications, screen displays in computer programs and apps, as well as graphs in standards.
Informative examples of graphs that conform to the requirements in this document are found in Annex A.
Although out...view more

IEC 63045:2020 is applicable to
– therapy equipment using extracorporeally induced non-focused or weakly focused pressure pulses;
– therapy equipment producing extracorporeally induced non-focused or weakly focused mechanical energy,
where the pressure pulses are released as single events of duration up to 25 µs.
This document does not apply to
– therapy equipment using focusing pressure pulse sources such as extracorporeal lithotripsy equipment;
– therapy equipment using other acoustic wa...view more

This part of IEC 60118 covers the relevant EMC phenomena for hearing aids. Hearing aid
immunity to high frequency fields originating from digital wireless devices such as mobile
phones was identified as one of the most relevant EMC phenomena impacting hearing aids.

IEC 60565-1:2020 specifies methods and procedures for free-field calibration of hydrophones, as well as individual electroacoustic transducers that can be used as hydrophones (receivers) and/or projectors (source transducers). Two general types of calibration are covered within this document: absolute calibration using the method of three-transducer spherical-wave reciprocity, and relative calibration by comparison with a reference device which has already been the subject of an absolute calibra...view more

IEC 60601-2-66:2019 is available as IEC 60601-2-66:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60601-2-66:2019 applies to the BASIC SAFETY of HEARING AIDS and HEARING AID SYSTEMS, hereafter also referred to as ME EQUIPMENT or ME SYSTEM. IEC 60601-2-66:2019 cancels and replaces the second edition published in 2015. It constitutes a technical revision. This edition includes the followi...view more

IEC 60118-13:2019 covers the relevant EMC phenomena for hearing aids. Hearing aid immunity to high frequency fields originating from digital wireless devices such as mobile phones was identified as one of the most relevant EMC phenomena impacting hearing aids. IEC 60118-13:2019 cancels and replaces the fourth edition published in 2016 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) it introduces a ne...view more

IEC TS 63081:2019:
• defines key quantities relevant to ultrasonic materials characterization;
• specifies methods for direct measurement of many key ultrasonic materials parameters.
This document is applicable to all measurements of properties of passive acoustic materials under drive conditions that are not subject to nonlinear acoustic propagation. Whilst there are materials properties that may be of interest in a nonlinear drive regime, these are currently outside the scope of this docume...view more

This Standard specifies the methods for low frequency pressure calibration of hydrophones at frequencies from 0,01 Hz to several kilohertz depending on calibration method.

This Standard specifies methods for the measurement of bone conduction hearing aid characteristics. The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of bone conduction hearing aids. These methods are chosen to be practical and reproducible and are based on selected fixed parameters. The results obtained by the methods specified in this document express the performance under the conditions of meas...view more

IEC 60118-9:2019 specifies methods for the measurement of bone conduction hearing aid characteristics. The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of bone conduction hearing aids. These methods are chosen to be practical and reproducible and are based on selected fixed parameters. The results obtained by the methods specified in this document express the performance under the conditions of m...view more

IEC 60565-2:2019 specifies the methods for low frequency pressure calibration of hydrophones at frequencies from 0,01 Hz to several kilohertz depending on calibration method. IEC 60565-2:2019, together with IEC 60565-1, replaces the second edition of IEC 60565 published in 2006. This edition constitutes a technical revision. IEC 60565-2:2019 includes the following significant technical changes with respect to the previous edition. 1) IEC 60565 has been divided into two parts: • Part 1: Procedure...view more

IEC 60118-13:2019 covers the relevant EMC phenomena for hearing aids. Hearing aid immunity to high frequency fields originating from digital wireless devices such as mobile phones was identified as one of the most relevant EMC phenomena impacting hearing aids.
IEC 60118-13:2019 cancels and replaces the fourth edition published in 2016 and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) it introduces a...view more

IEC TR 62809:2019 is available as IEC TR 62809:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC TR 62809:2019 provides an overview of the requirements and tests of IEC 60601-2-66 in combination with the applicable sections of IEC 60601-1, and the collateral standards of the IEC 60601 series. It is intended to assist various groups involved in the product lifecycles process - like desi...view more

IEC 60601-2-66:2019 is available as IEC 60601-2-66:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60601-2-66:2019 applies to the BASIC SAFETY of HEARING AIDS and HEARING AID SYSTEMS, hereafter also referred to as ME EQUIPMENT or ME SYSTEM. IEC 60601-2-66:2019 cancels and replaces the second edition published in 2015. It constitutes a technical revision. This edition includes the followi...view more

IEC 63009:2019 is applicable to ultrasonic equipment designed for physiotherapy containing an ultrasonic transducer generating ultrasound in the frequency range 20 kHz to 500 kHz. This document only relates to ultrasonic physiotherapy equipment employing a single plane non-focusing circular transducer per treatment head, producing static beams perpendicular to the face of the treatment head. This document specifies: • methods of measurement and characterization of the output of ultrasonic physio...view more

IEC 60565-2:2019 specifies the methods for low frequency pressure calibration of hydrophones at frequencies from 0,01 Hz to several kilohertz depending on calibration method.
IEC 60565-2:2019, together with IEC 60565-1, replaces the second edition of IEC 60565 published in 2006. This edition constitutes a technical revision.
IEC 60565-2:2019 includes the following significant technical changes with respect to the previous edition.
1) IEC 60565 has been divided into two parts:
• Part 1: Proce...view more

IEC 60118-9:2019 specifies methods for the measurement of bone conduction hearing aid characteristics.
The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of bone conduction hearing aids. These methods are chosen to be practical and reproducible and are based on selected fixed parameters.
The results obtained by the methods specified in this document express the performance under the conditions of...view more

IEC 63009:2019 is applicable to ultrasonic equipment designed for physiotherapy containing an ultrasonic transducer generating ultrasound in the frequency range 20 kHz to 500 kHz.
This document only relates to ultrasonic physiotherapy equipment employing a single plane non-focusing circular transducer per treatment head, producing static beams perpendicular to the face of the treatment head.
This document specifies:
• methods of measurement and characterization of the output of ultrasonic phy...view more

IEC 60255-181:2019 specifies the minimum requirements for functional and performance evaluation of frequency protection. This document also defines how to document and publish performance test results.
This document covers the functions based on frequency measurement or rate of change of frequency measurements. This document also covers frequency protection where additional blocking elements are used.
This document defines the influencing factors that affect the accuracy under steady state con...view more

IEC TS 63070:2019 is applicable to ultrasonic equipment designed for the medical field of application. It covers both diagnostic and therapeutic (physiotherapy and HITU) equipment.
This document describes transducer evaluation by the infrared imaging technique using a split TMM-phantom for qualitative and quantitative estimation of temperature distributions in tissue-mimicking material, resulting from absorption of ultrasound and from heating of the transducer itself.
This document also descri...view more

IEC TS 63001:2019 provides a technique of measurement and evaluation of ultrasound in liquids for use in cleaning devices and equipment. It specifies
• the cavitation measurement at 2,25 f0 in the frequency range 20 kHz to 150 kHz, and
• the cavitation measurement by extraction of broadband spectral components in the frequency range 10 kHz to 5 MHz.
IEC TS 63001:2019 covers the measurement and evaluation of the cavitation, but not its secondary effects (cleaning results, sonochemical effects,...view more

This document specifies requirements for the electroacoustical performance of systems of
instruments used to measure sound for the purposes of aircraft noise certification, and for
other comparisons among aircraft models, and provides methods by which tests can be made
periodically to verify that the performance continues to conform to the requirements within
stated limits.
In general, a sound measurement system for this purpose comprises a combination of
instruments extending from a micro...view more

IEC 61265:2018 specifies requirements for the electroacoustical performance of systems of instruments used to measure sound for the purposes of aircraft noise certification, and for other comparisons among aircraft models, and provides methods by which tests can be made periodically to verify that the performance continues to conform to the requirements within stated limits. In general, a sound measurement system for this purpose comprises a combination of instruments extending from a microphone...view more

IEC 61265:2018 specifies requirements for the electroacoustical performance of systems of instruments used to measure sound for the purposes of aircraft noise certification, and for other comparisons among aircraft models, and provides methods by which tests can be made periodically to verify that the performance continues to conform to the requirements within stated limits.
In general, a sound measurement system for this purpose comprises a combination of instruments extending from a microphon...view more

This document specifies the performance requirements for three classes of sound calibrator:
class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for
class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used
only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use.
A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a
class 2 sound calibrator primari...view more

This document specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and a class 2 sound calibrator primarily wi...view more

IEC TS 62903:2018, which is a Technical Specification,
a) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic transducer calibration,
b) establishes the measurement conditions and experimental procedure required to determine the transducer's electroacoustic parameters and acoustic output power using the self-reciprocity method,
c) establishes the criteria for checking the reciprocity of these transducers and the linear range of the focused field, and
d...view more

IEC 61754-7-2:2017 defines the standard interface dimensions for the type MPO family of connectors with two rows of fibres. This first edition of IEC 61754-7-2, along with the first edition of IEC 61754-7-1, cancels and replaces the third edition of IEC 61754-7 published in 2008. This first edition of IEC 61754-7-2 includes the two fibre row MPO variants including the addition of active device receptacles and up-angled plugs. The first edition of IEC 61754-7-1 includes the one fibre row MPO vari...view more

IEC 60942:2017 is also available as IEC 60942:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60942:2017 specifies the performance requirements for three classes of sound calibrator: class LS (Laboratory Standard), class 1 and class 2. Acceptance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory;...view more

IEC 62047-29:2017(E) specifies a relaxation test method for measuring electromechanical properties of freestanding conductive thin films for micro-electromechanical systems (MEMS) under controlled strain and room temperature. Freestanding thin films of conductive materials are extensively utilized in MEMS, opto-electronics, and flexible/wearable electronics products. Freestanding thin films in the products experience external and internal stresses which could be relaxed even under room temperatu...view more

IEC 60645-1:2012 specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels, relative to standard reference threshold levels established by means of psychoacoustic test methods. The object of this standard is to ensure:  a) That tests of hearing in the frequency range 125 Hz to 16 000 Hz on a given human ear, performed with different audiometers which comply with this standard shall give substantia...view more