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IEC 61094-4

Measurement Microphones Part 4: Specifications for Working Standard Microphones

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Organization: IEC
Publication Date: 1 November 1995
Status: active
Page Count: 28
ICS Code (Accessories): 33.160.50
ICS Code (Electroacoustics): 17.140.50
scope:

Scope and object

This part of IEC 1094 is applicable to working standard microphones.

It specifies mechanical dimensions and certain electroacoustical characteristics for working standard microphones used in measuring systems for the determination of sound pressure to enable these microphones to be used as transfer standards in the calibration of acoustic measurement instruments.

It establishes a system for classifying working standard microphones into a number of types according to their dimensions and properties in order to facilitate the specification of measurement systems, the calibration of measuring systems and microphones by sound calibrators, and the interchangeability of microphones in given measuring and calibration systems.

It does not specify the transduction principle by which working standard microphones operate.

Document History

IEC 61094-4
November 1, 1995
Measurement Microphones Part 4: Specifications for Working Standard Microphones
Scope and object This part of IEC 1094 is applicable to working standard microphones. It specifies mechanical dimensions and certain electroacoustical characteristics for working standard...

References

This document references:
ASME B1.1 - Unified Inch Screw Threads (UN and UNR Thread Form)
Published by ASME on January 1, 2019
This Standard specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. (In order to emphasize that unified screw threads are based on inch modules,...
This document references:
IEC 61094-1 - Measurement Microphones - Part 1: Specifications for Laboratory Standard Microphones
Published by IEC on July 1, 2000
This part of IEC 61094 specifies mechanical dimensions and certain electroacoustic characteristics for condenser microphones used as laboratory standards for the realization of the unit of sound...
This document references:
IEC 61094-2 - Electroacoustics – Measurement microphones – Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
Published by IEC on February 1, 2009
This part of International Standard IEC 61094 – is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1 and other types of condenser microphone having the same...
This document references:
IEC 61094-3 - Electroacoustics - Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
Published by IEC on June 1, 2016
This part of IEC 61094 • specifies a primary method of determining the complex free-field sensitivity of laboratory standard microphones so as to establish a reproducible and accurate basis for the...
This document references:
DS/IEC 942 - Sound calibrators
Published by DS on July 8, 1991
The standard specifies the performance requirements for three classes of sound calibrator. Sound calibrators are designed to produce a known sound pressure level or levels at a specified frequency or...
This document is referenced by:
IEC 61265 - Electroacoustics - Instruments for Measurement of Aircraft Noise - Performance Requirements for Systems to Measure One-Third-Octave Band Sound Pressure Levels in Noise Certification of Transport-Category Aeroplanes
Published by IEC on May 1, 2018
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...
This document is referenced by:
14 CFR PART 36 - NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION
Published by FAA on January 1, 2023
A description is not available for this item.
This document is referenced by:
EN 60318-4 - Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
Published by CENELEC on May 1, 2010
This part of IEC 60318 describes an occluded-ear simulator intended for the measurement of insert earphones in the frequency range from 100 Hz to 10 000 Hz. It is suitable for air conduction hearing...
This document is referenced by:
ISO 26101 - Acoustics - Test methods for the qualification of free-field environments
Published by ISO on April 1, 2017
This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field. This document specifies discrete-frequency and...
This document is referenced by:
IEC 61329 - Sound System Equipment - Methods of Measuring and Specifying the Performance of Sounders (Electroacoustic Transducers for Tone Production)
Published by IEC on November 1, 1995
Scope and object This International Standard is applicable to sounders, which are treated as entirely passive electroacoustic transducer elements. Piezoelectric diaphragms, which are the principal...
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