音响系统设备第22部分:换能器的电气和机械测量

[中文适用范围]： 本标准适用于将电信号转换为机械或声信号换能器。然而，如果电信号输入端和辐射器表面均可访问，本文件也可适用于无源和有源音频系统，如扬声器、耳机、电视机、多媒体设备、个人便携式音频设备、汽车音响系统和专业设备。本文件仅描述有助于评估被测设备（DUT）传输行为的电学和机械测量。包括在小信号和大信号域内操作DUT。目标应用中的声学边界条件（如车内）的影响也可在声系统的物理评估中予以考虑。重放声音的感知和认知评估以及感知音质的影响不在本文件范围内。注：本文件不适用于麦克风和其他传感器。实施本文件不需要访问辐射器近场或远场产生的声压。描述电声传输特性的指向性等特性详见IEC 60268-21（覆盖声学测量）。关于测量在研发（R&D）、末线测试（QC）和最终目标应用（TA）中的评估的实际应用指南见附录A。 [外文原描述]： IEC 60268-22:2020 applies to transducers converting an electrical input signal into a mechanical or acoustical output signal. However, if the electrical input terminals and the surface of the radiator are accessible, this document can also apply to passive and active sound systems such as loudspeakers, headphones, TV-sets, multi-media devices, personal portable audio devices, automotive sound systems and professional equipment. This document describes only electrical and mechanical measurements that help assess the transfer behaviour of the device under test (DUT). This includes operating the DUT in both the small- and large-signal domains. The influence of the target application's acoustical boundary conditions (e.g. car interior) can also be considered in the physical evaluation of the sound system. Perception and cognitive evaluations of the reproduced sound and the impact of perceived sound quality are outside the scope of this document.