iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
SIST

SIST EN 60942:1998

(Main)

Electroacoustics - Sound calibrators

Electroacoustics - Sound calibrators

Specifies the performance requirements for three classes of sound calibrator. Sound calibrators are designed to produce a known effective sound pressure level or levels at a specified frequency or frequencies when coupled to specified models of microphone or specified configurations, for example, with or without protective grid.

Elektroakustik - Schallkalibratoren

Electroacoustique - Calibreurs acoustiques

Donne des prescriptions concernant les caractéristiques de trois classes de calibreurs acoustiques. Les calibreurs acoustiques sont conçus pour produire un ou plusieurs niveaux connus de pression acoustique à une ou plusieurs fréquences spécifiées lorsqu'ils sont couplés à des microphones de modèles spécifiés et dans les conditions spécifiées, par exemple avec ou sans grille de protection.

Elektroakustika - Kalibratorji za zvokomere (IEC 60942:1997)

General Information

Status
Withdrawn
Publication Date
31-Jul-1998
Withdrawal Date
12-Nov-2009
ICS
17.140.50 - Electroacoustics
Technical Committee
I11 - Imaginarni 11
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
19-Oct-2009
Due Date
11-Nov-2009
Completion Date
13-Nov-2009
Ref Project
EN 60942:1998 - Electroacoustics - Sound calibrators

Relations

Amended By
SIST EN 60942:1998/A1:2002 - Electroacoustics - Sound calibrators
Effective Date
29-Jan-2023
Replaced By
SIST EN 60942:2004 - Electroacoustics - Sound calibrators
Effective Date
29-Jan-2023
Replaced By
SIST EN 60942:2004 - Electroacoustics - Sound calibrators
Effective Date
07-Jun-2022
Amended By
SIST EN 60942:1998/A1:2002 - Electroacoustics - Sound calibrators
Effective Date
07-Jun-2022
Amended By
SIST EN 60942:1998/A1:2002 - Electroacoustics - Sound calibrators
Effective Date
01-Sep-2002

Buy Standard

EN 60942:1998EN 60942:1998
PreviousNext
Standard
EN 60942:1998
English language
32 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60942:1998
01-avgust-1998
Elektroakustika - Kalibratorji za zvokomere (IEC 60942:1997)
Electroacoustics - Sound calibrators
Elektroakustik - Schallkalibratoren
Electroacoustique - Calibreurs acoustiques
Ta slovenski standard je istoveten z: EN 60942:1998
ICS:
17.140.50 Elektroakustika Electroacoustics
SIST EN 60942:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 60942:1998

---------------------- Page: 2 ----------------------

SIST EN 60942:1998

---------------------- Page: 3 ----------------------

SIST EN 60942:1998

---------------------- Page: 4 ----------------------

SIST EN 60942:1998

---------------------- Page: 5 ----------------------

SIST EN 60942:1998

---------------------- Page: 6 ----------------------

SIST EN 60942:1998

---------------------- Page: 7 ----------------------

SIST EN 60942:1998

---------------------- Page: 8 ----------------------

SIST EN 60942:1998

---------------------- Page: 9 ----------------------

SIST EN 60942:1998

---------------------- Page: 10 ----------------------

SIST EN 60942:1998

---------------------- Page: 11 ----------------------

SIST EN 60942:1998

---------------------- Page: 12 ----------------------

SIST EN 60942:1998

---------------------- Page: 13 ----------------------

SIST EN 60942:1998

---------------------- Page: 14 ----------------------

SIST EN 60942:1998

---------------------- Page: 15 ---------
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

SIST
SIST EN IEC 62127-3:2023(Main)
Ultrasonics - Hydrophones - Part 3: Properties of hydrophones for ultrasonic fields (IEC 62127-3:2022)
EN IEC 62127-3:2023

IEC 62127-3:2022 is available as IEC 62127-3:2022 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62127-3:2022 specifies relevant hydrophone characteristics. This document is applicable to:
- hydrophones employing piezoelectric sensor elements, designed to measure the pulsed and continuous wave ultrasonic fields generated by ultrasonic equipment;
- hydrophones used for measurements made in water;
- hydrophones with or without an associated pre-amplifier.
IEC 62127-3:2022 cancels and replaces the first edition published in 2007 and Amendment 1:2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition.
a) The upper frequency limit of 40 MHz has been removed.
b) Hydrophone sensitivity definitions have been changed to recognize sensitivities as complex-valued quantities.
c) Procedures to determine the effective hydrophone size have been changed according to the rationale outlined in Annex B.
d) Requirements on the frequencies for which the effective hydrophone size shall be provided have been changed to achieve practicality for increased frequency bands.
e) The new Annex B and Annex C have been added.
f) Annex A has been updated to reflect the changes of the normative parts.

  • Standard
    34 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    29 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60318-7:2023(Main)
Electroacoustics - Simulators of human head and ear - Part 7: Head and torso simulator for the measurement of sound sources close to the ear (IEC 60318-7:2022)
EN IEC 60318-7:2022

This part of IEC 60318 describes a head and torso simulator, or manikin, intended for the measurement of sound sources placed close to the ear in the frequency range from 100 Hz to 16 000 Hz.
The manikin described in this part of IEC 60318 is intended for airborne acoustic measurements only. It is not suitable for measurements which depend upon vibration transmission paths such as bone conduction, or for measurements requiring the simulation of bone or tissue.
This document specifies the manikin in terms of both its geometrical dimensions and its acoustical properties. For conformance with this document, a manikin shall be compliant with both sets of specifications.

  • Standard
    36 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60318-8:2022(Main)
Electroacoustics - Simulators of human head and ear - Part 8: Acoustic coupler for highfrequency measurements of hearing aids and earphones coupled to the ear by means of ear inserts (IEC 60318-8:2022)
EN IEC 60318-8:2022

This part of IEC 60318 describes an acoustic coupler for loading a hearing aid or insert
earphone with a specified acoustic impedance when testing its acoustic performance, in the
frequency range up to 16 kHz. It is suitable for air-conduction hearing aids and earphones,
coupled to the ear by means of ear inserts, earmoulds or similar devices.
The acoustic coupler does not simulate the human ear. However, it has an effective volume of
only 0,4 cm3, which is small enough not to produce significant resonances in the coupler in the
frequency range below 16 kHz. Therefore, it will load the earphone with a known acoustic
impedance, which allows repeatable measurements with low uncertainty to be obtained on
earphones used in extended high-frequency audiometry.

  • Standard
    36 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 62127-1:2022(Main)
Ultrasonics - Hydrophones - Part 1: Measurement and characterization of medical ultrasonic fields (IEC 62127-1:2022)
EN IEC 62127-1:2022

This part of IEC 62127 specifies methods of use of calibrated hydrophones for the
measurement in liquids of acoustic fields generated by ultrasonic medical equipment including
bandwidth criteria and calibration frequency range requirements in dependence on the spectral
content of the fields to be characterized.
This document:
– defines a group of acoustic parameters that can be measured on a physically sound basis;
– defines a second group of parameters that can be derived under certain assumptions from
these measurements, and called derived intensity parameters;
– defines a measurement procedure that can be used for the determination of acoustic
pressure parameters;
– defines the conditions under which the measurements of acoustic parameters can be made
using calibrated hydrophones;
– defines procedures for correcting for limitations caused by the use of hydrophones with
finite bandwidth and finite active element size, and for estimating the corresponding
uncertainties.
NOTE 1 Throughout this document, SI units are used. In the specification of certain parameters, such as beam
areas and intensities, it can be convenient to use decimal multiples or submultiples. For example, beam area is
likely to be specified in cm2 and intensities in W/cm2 or mW/cm2.
NOTE 2 The hydrophone as defined can be of a piezoelectric or an optic type.

  • Standard
    105 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60645-6:2022(Main)
Electroacoustics - Audiometric equipment - Part 6: Instruments for the measurement of otoacoustic emissions (IEC 60645-6:2022)
EN IEC 60645-6:2022

This part of IEC 60645 applies to instruments designed primarily for the measurement of
otoacoustic emissions in the human external auditory meatus evoked by acoustic probe stimuli.
This document defines the characteristics to be specified by the manufacturer, specifies
minimum mandatory functions for two types of instruments and provides performance
specifications applicable to both instrument types. This document describes methods to be used
to demonstrate conformance with the specifications in this document and guidance on methods
for periodic calibration.
The purpose of this document is to ensure that measurements made under comparable test
conditions with different instruments complying with this document will be consistent.
Instruments can provide a measurement function not specifically within the scope of this
document and still comply with the relevant requirements of this document for the functions that
are within the scope. This document is not intended to restrict development or incorporation of
new features, nor to discourage innovative approaches.

  • Standard
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60118-16:2022(Main)
Electroacoustics - Hearing aids - Part 16: Definition and verification of hearing aid features (IEC 60118-16:2022)
EN IEC 60118-16:2022

This part of IEC 60118 gives definitions for common hearing aid features such as noise reduction or feedback reduction, etc. Only acoustical inputs are considered. Binaural features are currently not covered in this document. In addition, measurement procedures are described to verify hearing aid features. The objective is not to evaluate the performance of features but to verify their existence and functionality.
Furthermore, definitions and procedures are kept as general as possible so that this document can be applied to various types of hearing aids, e.g. air conduction hearing aids or bone conduction hearing aids. To this end, the general definition for hearing aid of IEC 60118-0:2015 is adopted, and this document does not refer to any specific ear simulator or acoustic coupler but uses a general definition of a coupler. However, if a general view is not applicable or leads to unclear or complex wording, the situation for an air conduction hearing aid is considered, only. Nevertheless, in Clause 4, an explanation is given on how this document can be applied to hearing aids which do not use air conduction.

  • Standard
    32 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 61094-2:2009/A1:2022(Amendment)
Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-2:2009/AMD1:2022)
EN 61094-2:2009/A1:2022

No scope available

  • Amendment
    9 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 61828:2021(Main)
Ultrasonics - Transducers - Definitions and measurement methods regarding focusing for the transmitted fields (IEC 61828:2020)
EN IEC 61828:2021

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.
IEC 61828:2021 relates to focusing ultrasonic transducers operating in the frequency range appropriate to medical ultrasound (0,5 MHz to 40 MHz) for both therapeutic and diagnostic applications. It shows how the characteristics of the transmitted field of transducers can be described from the point of view of design, as well as measured by someone with no prior knowledge of the construction details of a particular device. The transmitted ultrasound field for a specified excitation is measured by a hydrophone in either a standard test medium (for example, water) or in a given medium. This document applies only to media where the field behaviour is essentially like that in a fluid (i.e. where the influence of shear waves and elastic anisotropy is small), including soft tissues and tissue-mimicking gels. Any aspects of the field that affect their theoretical description or are important in design are also included. These definitions would have use in scientific communications, system design and description of the performance and safety of systems using these devices.
IEC 61828:2021 incorporates definitions from other related standards where possible, and supplies more specific terminology, both for defining focusing characteristics and for providing a basis for measurement of these characteristics.
IEC 61828:2021 cancels and replaces the first edition published in 2001. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Clause 6 on Measurement procedures has been replaced by Clause 6: "Acoustic field measurement: equipment" and Clause 7: "Measurement procedure" and related definitions.
b) Reorganization of definitions and measurement section to accommodate specific sets of measurements for focusing, nonlinearity, beam axis alignment, beam area, beam maximum, numerical projection, plane wave, high intensity therapeutic ultrasound, multiple sources, spatial impulse response and compound plane waves. Clause 3 has been moved to Annex B.
c) The normative references have been updated and the Bibliography has been expanded from 8 to 40 references.
d) Twelve figures have been updated and seven new figures (B.1, B.3, B.7, B.10, B.11, B.12, B.13, B.14) have been added to facilitate measurements and be consistent with measurement terminology.
e) New measurements have been added for time delays, arrays, plane waves and spatial impulse response.
f) Annex A has been expanded to provide general guidance on pulsed waves, system responses, focusing gains and minimum beamwidth estimation.
g) New annexes have been added:

• Annex B (informative) Rationale for focusing and nonfocusing definitions

• Annex E (informative) Uncertainties;

• Annex F (informative) Transducer and hydrophone positioning systems;

•
  • Standard
    115 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60645-3:2021(Main)
Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration (IEC 60645-3:2020)
EN IEC 60645-3:2020

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-duration test signals.

  • Standard
    17 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN IEC 60263:2020(Main)
Scales and sizes for plotting frequency characteristics and polar diagrams (IEC 60263:2020)
EN IEC 60263:2020

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 outside the scope of this document, graphs with a linear y-axis versus logarithmic
frequency (e.g., phase, group delay, etc.) often accompany the standard aspect ratio graphs of
level described in the normative part of this document. These are described in informative
Annex B.

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day