音响系统设备.声电变换器.大信号参数的测定

[中文适用范围]： 本国际标准适用于扬声器驱动单元@扬声器系统@耳机@微型扬声器@振动器等传感器以及使用电动或电磁电机与机械悬架耦合的其他执行器。传感器的大信号行为通过集总参数模型进行建模，该模型考虑了主要的非线性因素，例如力因子@刚度和电感，如图1所示。该标准定义了模型的基本术语和参数@测量方法和方式应报告结果。 [外文原描述]： IEC 62458:2010 applies to transducers such as loudspeaker drive units, loudspeaker systems, headphones, micro-speakers, shakers and other actuators using either an electro-dynamical or electro-magnetic motor coupled with a mechanical suspension. The large signal behaviour of the transducer is modelled by a lumped parameter model considering dominant nonlinearities such as force factor, stiffness and inductance. It defines the basic terms and parameters of the model, the methods of measurements and the way the results should be reported. It cancels and replaces IEC/PAS 62458 published in 2006. It constitutes a technical revision. The main changes are: - descriptions of the methods of measurement are adjusted to the state of the technology; - addition of Clauses 4 to 15; - integration of Annex A in the main body of the standard; - overall textual review.