电声器件

非旋转对称电声器件的指向性因子测量

Measurement of the directivity factor of a non-rotational symmetry electroacoustic device

我国电声器件行业发展特点

Development features of our electro-acoustic device industry

为此，有人提出用模糊数学方法对电声器件的音质进行研究。

Therefore , in 1985 fuzzy mathematical method was suggested to deal with subjective assessment of audio devices .

电声器件属于手机和笔记本电脑非核心零组件，经常被品牌厂家压价。

Electric-voice devices , the non-core components of mobile phone and notebook computer , are often confronted with rollback from brand vendors .

了解电声器件的相位特性对有源消声控制器的设计及消声效果分析具有重要作用。

It is important to understand the phase characteristics of electro-acoustic device for the design and effect analysis of active noise cancellation controller .

本文运用开路热刺激电流等手段，对电声器件中运用的驻极体材料的注入电荷衰减机制进行了分析。

An open & circuit TSC method is used to analyse the mechanism of the injected charge decay of electret material used in electroacoustic devices in this paper .

ZnO薄膜的高电阻率与单一的C轴结晶择优取向决定了它具有良好的压电常数与机电耦合系数，可用于各种压电、压光、电声、声光器件和表面型气敏元件。

High resistivity ZnO films with a single C-axis preferred orientation determines that it has good piezoelectric constants and electromechanical coupling coefficient , can be used for a variety of piezoelectric , pressure light , electro-acoustic , acousto-optic devices and surface-based gas sensor .