查询词典 frequency response

The analytical solutions for the ABCD matrices of uniform transmission lines are expanded into matrix infinite series with very simple terms, from which two important properties about the time-domain response of all kinds of transmission lines are obtained. The lines analyzed may have frequency-dependent parameters and arbitrary terminals.

由于网络理论中ABCD矩阵的特殊性质，该方法对非均匀传输线时域响应的分析具有更大的优越性，能分析的传输线可以具有频变参数和任意负载终端，给出了计算非均匀传输线ABCD矩阵的两种方法，一种是将非均匀传输线等效为一系列由长度很短的均匀传输线构成的子网络的级联，另一种是用单步法直接求解ABCD矩阵所满足的微分方程。

Vibration model is established and inherency frequency and main vibration type are obtained, vibration characteristic response is analyzed. Mode respond and harmonious respond of suspension system with package cushioning are analyzed with the help of ANSYS 6.0. At last, design method of suspension system with package cushioning is researched and a detailed design example is provided.

第三，介绍了弹簧吊装系统的振动分析理论，建立了振动模型，得到了系统的固有频率及主振型，分析了系统的振动响应；并利用ANSYS6.0有限元分析软件对悬浮式缓冲包装模型进行了模态分析和谐响应分析。

Has become the essential invertor in each kind of domain, along with on-off element large capacity and high frequency, microcomputer high performance and control technology and return route integration, may realize invertor's miniaturization, the high response, the high efficiency output and high reliable.

在各种领域已成为不可缺少的逆变器，随着开关元件大容量化和高频化、微机高性能化和控制技术和回路集成化，可实现逆变器的小型化、高响应化、大功率输出化和高可靠化。

Second, we estimate the channel response on data subcarriers using linear interpolation in the frequency domain.

其次我们在频率域上使用线性内插法来得到在资料载波上的通道响应。

Dynamic response of the human lumbar spine: a 5 degree-of-freedom lumped parameter time and frequency domain model.

脊柱动态响应的人腰：1 5学位的自由度集中参数时域和频域模型。

Based on the ability of neural network in classification and recognization, a feed-forward multi-layer neural network is applied in the diagnosis of adhesive bond quality between metallic and nonmetallic components of a pressure vessel through acoustic feature extraction in the frequency domain, based upon the acoustic response on knocking the pressure vessel.

本文基于神经网络对目标的识别与分类能力，用简单的敲击法获取了某压力容器的声响应信号，通过对声信号的频域特征提取，应用前馈多层神经网络对压力容器的金属与非金属部件之间的粘接质量进行了诊断。

Impedance analysis method is an important method to measure the response of a quartz crystal microbalance,which can provide the values of the resonant frequency and equivalent circuit parameters .

阻抗分析法是表征石英晶体微天平响应特性的主要手段之一，能够给出QCM的谐振频率及其等效电路参数。

The relation between the result accuracy and the element number of the system is studied and shows the minimal element number to ensure the response result accuracy is determined by the excitation frequency and the modal modes of the system.

研究指出，保证计算结果精确性的最小网格划分数目与激励频率及管道系统的振动模态有很大关系，即由对管系响应贡献较大的最高阶模态振型决定，这一研究成果对实际管道系统振动响应计算中时间与空间节点的划分提供了理论依据。

The performance of magnetic levitation is determined mainly by the characteristic of its controller and solving the problems of the high precision, high response frequency, output immune from the disturbance, the parameter perturbation and the uncertain factors from outside is very difficult. The traditional methods can not meet the needs of the system. So it has great significance to study the control method of magnetic levitation.

磁悬浮系统性能的优劣很大程度上取决于控制器的特性，高精度、高响应频率和输出不受外界干扰的特性以及磁悬浮中参数的摄动和外界不确定的干扰因素都是难以解决的棘手问题，传统控制难以满足系统要求，因此对控制方法的研究有其非常重要的意义。

Based on the solution, the effects of the incident frequency and incident angle of plane P waves on the dynamic response of circular arc alluvial valley are discussed.

数值结果表明，入射波的频率和入射角度对圆弧形沉积谷地场地反应有重要影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐