IEC 60645-6:2022 电声学测听设备第6部分:耳声发射测量仪器

标准编号：IEC 60645-6:2022

中文名称：电声学测听设备第6部分:耳声发射测量仪器

英文名称：Electroacoustics - Audiometric equipment - Part 6: Instruments for the measurement of otoacoustic emissions

发布日期：2022-03-10

标准范围

IEC 60645-6:20 22作为IEC 60645-6:20 22 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 606045-6:20 22适用于主要设计的仪器用于测量由声探针刺激引起的人类外耳道耳声发射。本文件定义了制造商应指定的特性，规定了两种类型仪器的最低强制性功能，并提供了适用于两种类型仪器的性能规格。本文件描述了用于证明符合本文件质量标准的方法以及定期校准方法指南。本文件的目的是确保使用符合本文件的不同仪器在可比试验条件下进行的测量是一致的。仪器可以提供本文件范围以外的测量功能，但仍符合本文件范围内功能的相关要求。本文档无意限制新功能的开发或整合，也无意阻止创新方法。IEC 606045-6:20 22取消并取代了2009年发布的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:a)DPOAE中使用的标称测试频率现在被定义为两个频率中较高的频率f2；b)已经规定了TEOAE的刺激信号的允许偏差；c)DPOAE刺激信号的频率范围已经被重新定义，d)TEOAE的刺激水平要求已被重新定义；e)重新定义了DPOAE的刺激水平要求；f)重新定义了DPOAE的谐波失真要求；g)增加了DPOAE的最小测量范围。

IEC 60645-6:2022 is available as IEC 60645-6:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 606045-6:2022 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. IEC 606045-6:2022 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the nominal test frequency used in DPOAE is now defined as the higher of the two frequencies, f2;
b) the permitted deviation of the stimulus signal for TEOAE has been specified;
c) the frequency range for DPOAE stimulus signals has been redefined,
d) the stimulus level requirements for TEOAE have been redefined;
e) the stimulus level requirements for DPOAE have been redefined;
f) the harmonic distortion requirements for DPOAE have been redefined;
g) a minimum measurement range for DPOAE has been added.

标准预览图