IEC 60645-3:2020 电声学 - 听力设备 - 第3部分:测试短持续时间的信号

标准编号：IEC 60645-3:2020

中文名称：电声学 - 听力设备 - 第3部分:测试短持续时间的信号

英文名称：Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration

发布日期：2020-09-29

标准范围

IEC 60645-3:20 20规定了一种根据电波形描述短持续时间测听参考信号和测试信号的物理特性的方法及其测量方法。本文件的目的是确保以相同的方式指定和测量短持续时间的测听刺激，并确保使用此类信号的设备校准使用定义的方法进行。本文档未描述短持续时间测试信号的使用方法。IEC 60645-3:20 20取消并取代了2007年发布的第二版。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)参考信号的新图形；b)定义的变化。

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 test signals.
IEC 60645-3:2020 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) new figures of reference signals;
b) changes in definitions.

标准预览图