声耦合器

This device had an acoustic coupler on the back, making it appear it had Mickey Mouse ears.

该器件有一个背面声耦合器，好像它已经米老鼠耳朵。

Part 2 : an interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range.

人头和耳的模拟器。第2部分：在扩展高频范围内测声耳机校准的间歇声音耦合器欧洲标准

An acoustic coupler consists of a pair of rubber cups into which the user places a telephone handset.

声耦合器由一对橡胶杯组成，用户在橡胶杯里放置了电话听筒。

An illegal means of accessing computer data via a telephone link using a modem or acoustic coupler.

通过调制解调器或声耦合器连接电话线路而获取计算机内资料的一种非法手段。

With coupler embedded and acceleration sensitivity compensation design, the structure symmetry is insured, which can induce the acceleration sensitivity effectively. The acceleration sensitivity compensation design also improves the production efficiency of FOH for towed linear array application.2. A good theoretical simulation platform, utilizing the method of elastic mechanics and the finite element method, is established, which can provide an effect predictive design for FOH. The experimental results are in good agreement with the theoretical analysises.3. Some key technology problems in the making of FOH for towed linear array application are conquered. The new developed FOH, with an acoustic sensitivity of -143.0dB, has acceleration sensitivity less than -30dB, which exceeded to results from other international reports.

本论文的主要成果和创新在于：1、提出了耦合器内嵌、带加速度灵敏度微调补偿的低加速度灵敏度光纤水听器结构，最大程度保证了工艺结构的对称性，实现了对工艺误差的有效补偿，提高了低加速度灵敏度光纤水听器研制的成品率。2、采用弹性力学和有限元方法建立了拖曳线列阵光纤水听器理论设计平台，实验与理论分析结果相一致，这为优化光纤水听器的结构设计提供了有效的技术手段。3、解决了拖曳线列阵用光纤水听器制造的关键技术问题，研制出声压灵敏度为-143.0dB，加速度灵敏度低于-30dB的拖曳线列阵用光纤水听器，其加速度灵敏度优于国际上已报导的结果，并在国防水声一级计量站对其进行了性能指标测试(来源：A14BC论文网www.abclunwen.com)。

In the last few years, researches the problem of the underwater sail machine's sound have been common, the content of the research is very extensive, including the modeling, method of its solution, frequency curve, the wave's property in spreading, the syntonic frequency and the damp material on such coupling system.

近几年，水下航行器的声振一直是国际上研究的热点，研究的内容非常广泛，其中涉及这类耦合系统的建模、求解方法、频散曲线与传播波性质、外激励下的共振频谱及阻尼材料降噪等。

Its acoustic radiation by axis excitation, transverse excitation and their combination and their frequency-response function from 0~2kHz by the step of 2Hz are evaluated, and its modal analysis of structural-acoustic coupling is performed. Some conclusions are obtained.

主要研究了航行器在几个频率点的轴向激励、侧向激励以及它们的组合的声辐射；计算了这几种激励下0~2kHz的频率响应函数；进行了声振耦合的模态分析；探讨了肋对航行器声辐射特征的影响。

Part 2 : an interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range.

第2部分：在扩展高频范围内测声耳机校准的间歇声音耦合器欧洲标准EN60318-2

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。