驻极体传声器

非织造布作为驻极体传声器极头防尘布，不仅起到阻挡灰尘的作用，而且具有吸声隔音、调节传声器频率响应曲线的功能。

As the dustproof material for electret condenser microphone , the nonwovens can not only prevent dust into microphone , but also provide the function of sound insulation and adjusting frequency response for microphone .

驻极体传声器小型前置放大器的设计

A Design of Small Preamplifier for Electret Microphone

驻极体传声器是一种用驻极体材料制造的新型传声器。

The electret microphone is a new microphone which is made with the electret material .

分析了驻极体传声器的电路模型及其传统的前置放大电路。

This paper discussed the circuit model of a electret microphone and the conventional microphone preamplifiers .

驻极体传声器测试仪是用来测试传声器的灵敏度及频率响应的。

The electret microphone tester is used to test electret microphone 's sensitivity and frequency response .

驻极体传声器目前主要是民用，单指向性驻极体传声器设计与生产的关键在于内部相移网络的控制。

The key technique in design and manufacture of unidirectional ECM is how to control the internal phase-shift network .

本文主要介绍微型驻极体传声器的特点，国内、外发展概况及其应用。

The Performances of miniature electret microphone , the development status at home and abroad , and its applications are introduced in this paper .

根据引信保险机构系统特性分析，选择驻极体传声器作传感器，从而获得引信保险机构的状态信号。

Based on the characteristic analyses of fuze arming device , a special acoustic transmission device is selected to obtain the state signal of the device .

详细介绍了驻极体传声器在心音信号采集中的方法，包括心音信号提取的方案、原理、规则及传声器的阻抗变换问题。

This paper presents the methods for the heart sound acquisition used electret microphone , including the heart sound extraction project , principle , rules and the impedance conversion of microphone .

柴油车采用压燃式，发动机在运转中伴随着较强的振动信号，该振动信号是一个弱平稳随机信号，可以利用驻极体传声器进行提取。

There is a strong vibration signal as in operation of engine . The vibration signal is a weak stationary random signal , and it can be extracted by electret microphone .

深圳旭升电子有限公司成立于二00二年二月，现已成为国内技术领先、质量最佳、产量最大、服务最优的驻极体传声器专业生产厂家之一。

Shenzhen Xusheng Electronic co. , limited established in Feb.of2002 , now it is one of leading electret microphone producer with high technology , best quality , biggest production in the China .

对压电式加速度传感器与驻极体传声器进行了深入的研究，比较了两者的优缺点，确定了选择压电式加速度传感器作为整个测量系统的传感器的正确性。

Piezoelectric acceleration sensor and the electret microphone has been deeply studied , compares their advantages and disadvantages , and selects piezoelectric acceleration sensor as the sensor of the measurement system . 3 .

基于驻极体电容传声器的心音模拟处理电路的设计

Design of heart sound processing analog circuit based on the electret capacitor microphone

该电路涉及到放大、滤波、电平抬升等电路，并给出了安全设计问题，利用驻极体电容传声器来拾取心音信号。

It also gives a safety design problem analysis using an electret capacitor microphone to pick-up the heart sound signals .

本文对驻极体电容传声器的原理及噪声作了分析，这将有助于提高它的电特性。

The principle of electret condenser microphone and its noise are analyzed in the paper . It will be helpful to improve the electric specification .

通过实验研究了栅控恒压电晕充电制备驻极体电容传声器中的驻极体材料的特性，对如何使驻极体带上稳定、均匀的电荷，提供了有价值的资料。

The article describes in experiments the characteristic of electret material in the processing of electret condenser microphone with grid-controlled constant corona charge , which gives valuable information for how to charge electret materials with steady and proportionable charges .

论室温下驻极体等温放电的行为方程及驻极体传声器使用寿命估算

On Isothermal Discharge Equation of Crystalline Polymer Electret at Room Temperature