17.140.50 电声学 标准查询与下载

BS EN 61094-5:2016 电声学 测量麦克风 工作标准传声器压力比较校准方法

Electroacoustics. Measurement microphones. Methods for pressure calibration of working standard microphones by comparison

EN 61094-3:2016 测量传声器.第3部分:用互易技术对实验室标准传声器的自由场校准的基本方法

IEC 61094-3:2016 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 measurement of sound pressure under free-field conditions. It is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1. It is intended for use by laboratories with highly experienced staff and specialized equipment. This second edition cancels and replaces the first edition published in 1995. This edition constitutes a technical revision.

Electroacoustics - Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique

EN 61094-5:2016 测量扩音器.第5部分:使用比较法测定工作标准扩音器压力校准的方法

Electroacoustics - Measurement microphones - Part 5: Methods for pressure calibration of working standard microphones by comparison

IEC TS 62886:2016 电声学助听器16kHz以下电声性能的测量方法

Electroacoustics - Hearing aids - Method for measuring electroacoustic performance up to 16 kHz

IEC TS 62736:2016 超声学.脉冲回波扫描仪.检验成像系统基本性能稳定性的周期性试验的简单方法

Ultrasonics - Pulse-echo scanners - Simple methods for periodic testing to verify stability of an imaging system's elementary performance

BS EN 61260-2:2016 电声学.分倍频程带和倍频程带滤波器.模式评价试验

Electroacoustics. Octave-band and fractional-octave-band filters. Pattern-evaluation tests

BS EN 61260-3:2016 电声学 倍频程和分数倍频程滤波器 定期测试

Electroacoustics. Octave-band and fractional-octave-band filters. Periodic tests

EN 61260-3:2016 电声学 倍频程和分数倍频程滤波器 第3部分：定期测试

IEC 61260-3:2016 describes procedures for periodic testing of octave-band and fractional-octave-band filters that were designed to conform to the class 1 or class 2 specifications given in IEC 61260-1:2014. The aim of this standard is to ensure that periodic testing is performed in a consistent manner by all laboratories. This first edition of IEC 61260-3 (together with IEC 61260-1:2014 and IEC 61260-2:2016), cancels and replaces the first edition of IEC 61260 published in 1995 and its Amendment 1 published in 2001. This edition constitutes a technical revision.

Electroacoustics - Octave-band and fractional-octave-band filters - Part 3: Periodic tests

EN 61260-2:2016 电声学 倍频程和分数倍频程滤波器 第2部分：模式评估测试（包含修正案 A1：2017）

Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests (Incorporates Amendment A1: 2017)

IEC 61260-3:2016 电声学倍频带和分数倍频带滤波器第2部分:模式评估试验

Electroacoustics - Octave-band and fractional-octave band filters - Part 2: Pattern evaluation tests

IEC 61260-2:2016 电声 - 八度带和分数八度带滤波器 - 第2部分:模式评估测试

This part of IEC 61260 provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61260-1:2014 for octave-band and fractional-octaveband filters. Tests and test methods are applicable to class 1 and class 2 bandpass filters. The aim is to ensure that all testing laboratories use consistent methods to perform pattern-evaluation tests.

Electroacoustics - Octave-band and fractional-octave-band filters - Part 2: Pattern-evaluation tests

BS EN 61669:2016 电声学. 助听器实耳声学性能特性的测量

Electroacoustics. Measurement of real-ear acoustical performance characteristics of hearing aids

EN 61669:2016 电声学.助听器的真耳声学特性的测量设备

IEC 61669:2015 gives recommendations and requirements for the measurement and estimation of the real-ear acoustical performance characteristics of air-conduction hearing aids and for the measurement of certain acoustic properties of the ear related to the application of hearing aids. Measurements of real-ear acoustical characteristics of hearing aids which apply non-linear or analytical processing techniques are valid only for the test signals used and conditions employed. The purpose of this standard is to ensure that measurements of real-ear acoustical performance characteristics of a given hearing aid on a given human ear can be replicated in other locations with other test equipment. This second edition cancels and replaces the first edition of IEC 61669:2001 and the first edition of ISO 12124:2001. This edition constitutes a technical revision.

Electroacoustics - Measurement of real-ear acoustical performance characteristics of hearing aids

XP S31-117-2015 声学 声级计的自检

Acoustics - Self check of sound level meters

EN 60601-2-66:2015 医用电气设备 第 2-66 部分：助听器和助听器系统的基本安全和基本性能的特殊要求

Medical electrical equipment - Part 2-66: Particular requirements for the basic safety and essential performance of hearing instruments and hearing instrument systems

IEC 61669:2015 电声学. 助听器真耳声学性能特征的测量

This International Standard gives recommendations and requirements for the measurement and estimation of the real-ear acoustical performance characteristics of air-conduction hearing aids and for the measurement of certain acoustic properties of the ear related to the application of hearing aids. Measurements of real-ear acoustical characteristics of hearing aids which apply non-linear or analytical processing techniques are valid only for the test signals used and conditions employed. The purpose of this standard is to ensure that measurements of real-ear acoustical performance characteristics of a given hearing aid on a given human ear can be replicated in other locations with other test equipment.

Electroacoustics - Measurement of real-ear acoustical performance characteristics of hearing aids

BS EN 60118-0:2015 电声学. 助听器. 助听器性能特性的测量

Electroacoustics. Hearing aids. Measurement of the performance characteristics of hearing aids

IEC TS 62791:2015 超声学.脉冲回波扫描仪.适用于多种换能器类型的灰度医用超声扫描仪的低回波球体模型和性能测试方法

This Technical Specification defines terms and specifies methods for quantifying the imaging performance of real-time, ultrasound B-mode scanners. The types of transducers used (see sections 7.6 and 10.7 of [1]) with these scanners include a) phased array, b) linear arrays, c) convex arrays, d) mechanical sector scanners, e) 3-D probes operating in 2-D imaging mode (see Annex K), f) 3-D probes operating in 3-D imaging mode for a limited number of sets of reconstructed 2-D images (see Annex K). The test methodology is applicable for transducers operating in the 2 MHz to 15 MHz frequency range.

Ultrasonics - Pulse-echo scanners - Low-echo sphere phantoms and method for performance testing of gray-scale medical ultrasound scanners applicable to a broad range of transducer types

GSO IEC 61842:2015 用于语音通信的麦克风和耳机

This standard applies to the microphone part and earphone part of handsets, headsets or earsets for speech communications, and also to the microphone units and earphone units of built-in handsets, headsets or earsets. The object of this standard is to establish definitions relating to these electroacoustic transducers, and to standardize the characteristics to be specified and the relevant methods of measurement. This does not exclude the use of other methods of measurement which can be shown to give the same or more reliable results.

Microphones and earphones for speech communications

GSO IEC 61265:2015 电声学 飞机噪声测量仪器 运输类飞机噪声认证中测量三分之一倍频程声压级的系统的性能要求

This International Standard specifies requirements for the electroacoustical performance of systems of instruments used to measure sound for the purposes of aeroplane noise certification, and recommends methods by which tests may be made periodically to verify that the performance continues to comply with the requirements given within stated tolerances. In general, a sound measurement system for this purpose comprises a combination of instruments extending from a microphone through data recording and processing devices to a suitable output. Particular measurement systems, differing in their composition, perform the necessary functions in different ways and operate on either analogue or digital principles. The purpose of this International Standard is to ensure that different measurement systems have the same electroacoustical characteristics within the stated tolerances under specified reference environmental conditions. This standard does not provide recommendations for installation of microphones or microphone windscreens, nor requirements for measurement and analysis procedures used in aeroplane noise certification, but gives only the performance specifications for the measurement systems used to provide one-third-octave-band sound pressure levels averaged over a period of time. Certain of the requirements apply to the complete measurement system, including any means of recording a time waveform of the sound pressure signal to be measured prior to analysis. Other requirements apply specifically to the microphone which generates an electrical signal in response to the sound pressure received. Still further requirements apply only to the instruments used to operate on that signal in order to provide an output in the form of one-third-octave-band sound pressure levels. The requirements of this International Standard apply to the instruments used to measure the sound produced by jet- or propeller-driven transport-category aeroplanes of maximum certificated takeoff mass over 9 000 kg, or their propulsion systems when installed on a suitable outdoor engine test stand.

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