动态测试

The affection of the system's characteristics on dynamic error is analyzed and the occurring condition of dynamic error is presented.

分析了系统特性及测试信号对动态测量的影响，指出什么情况下存在动态测量误差。

The first level of verification used the characteristic parameter technique, and also proposed an on-line signature verification algorithm based on the one dimensional Gauss probability distribution model.

以前面已经分割形成的曲线段为动态匹配对象，可以实现参考模板与测试签名之间曲线段的"一对一"或者"一对多"的动态匹配。

If you opt to link a test module with the prebuilt dynamic library, this usage is called the dynamic library variant of the UTF.

如果选择将测试模块链接到预编译的动态库，这种用法被称为 UTF 的动态库用法。

Including setting up system platform and measuring structure of the rigidity of pretension spring of the solenoid valve, designing the dynamic electric-current driver on the basis of power sink principal, variable pulse width modulation of voltage boosting and inversion technology, realizing the intelligence controlover the control parameters, satisfying the diversity requirement towards the dynamic feature experiment of the solenoid valve; furthermore, testing system software is developed, and filtering is conducted over the signals of armature displacement response and driving current educed from the experiment using wavelet analysis technology.

构建了系统台架和电磁阀预紧弹簧刚度测量机构，设计了基于功率吸收原理和可变脉宽升压逆变技术的电磁阀动态电流驱动器，实现了对驱动器参数的智能控制，满足了对电磁阀动态特性试验的多样性要求。开发了测试系统软件，提出了基于小波分析的方法，对试验所得衔铁位移响应信号和驱动电流信号进行了滤波。

Based on the ARMAX model, a simple way of accuracy test is given with the residual errors and its zeros and poles.

采用ARMAX模型进行火控系统动态精度的简易测试，动态建模后经过残差检验、零极点分析等，为精度试验分析提供了一种简单方法

Dynamic response of direct methanol fuel cell is very important for the transportable applications.

直接甲醇燃料电池用作移动电源时，电池的动态响应特性特别重要。该文作者利用自行设计的直接甲醇燃料电池测试系统对一有效面积为 50cm2 的直接甲醇单体燃料电池的动态性能进行了实验研究。

ABSTRACT In order to study the thermally activated characteristics of plastic deformation and the effect of alloying element on the thermal activation of structural steels, the properties of plastic deformation for 20g and 13Ni3CrMoV steels have been examined in the temperature of 77—473K and strain rate of 〓. The experimental phenomena show that the effective stress of plastic deformation decreases with the increase of alloying elements content (namely solute solution softening) and the frequency factor deceases with the increase of effective stress.

本文以13Ni3CrMoV钢焊接结构的动态断裂破坏为背景，通过系统测试20g和13Ni3CrMoV钢的动态屈服特性，分析比较了结构钢的形变热激活特点，从频率因子〓随有效应力σ〓增大而下降和合金固溶软化的实验现象出发，在位错以弯折方式克服晶格Peierls位垒的基础上，提出了溶质原子与螺型位错热激活弯折相互作用的物理模型和σ〓-T分段线性关系的形变热激活理论假设，并借助计算机数值模拟，分析探讨了合金固溶软化的微观机制。

Hospital CT machine, digital gastrointestinal X-ray machines, C-arm, microbial susceptibility testing systems, Holter monitor, ambulatory blood pressure analysis system, lung function detector, automatic biochemical analyzer, color, color by the Transcranial Doppler flow analysis, electronic endoscopy, endoscopic, laparoscopic, cystoscopy, hysteroscopy, multi-functional ventilator, phacoemulsification instrument, fundus cameras and other advanced medical equipment, and investment into A hospital computer network management systems, multimedia systems, electronic reading room, and other information technology facilities.

医院有CT机、数字胃肠X光机、C型臂、微生物药敏测试系统、动态心电监测仪、动态血压分析系统、肺功能检测仪、全自动生化分析仪、彩超、彩色经颅多普勒血流分析仪、电子胃镜、十二指肠镜、腹腔镜、膀胱镜、宫腔镜、多功能呼吸机、白内障超声乳化仪、眼底照相机等先进诊疗设备，并投资建成了医院计算机网络管理系统、多媒体教学系统、电子阅览室等信息化设施。

It is composed of six parts: PCI Bus interface module, signal generator, signal adjustor, gain and phase detector, A/D conversion module and control and data process module. The system can measure the gain and phase curves of the crystal with the frequency range from 1MHz to 150 MHz. Crystal parameters can also be calculated, such as resonant frequency, series resistance, shunt capacitance, motion capacitance, motion inductance and Q factor, etc.

该测试卡以 IEC 444 标准为测量原理，由 PCI 总线接口模块、信号发生器、信号调理模块、增益相位检测电路、A/D 转换模块等部分组成，能够有效测量 1MHz～150 MHz 频率范围的晶振的增益与相位特性、串并联谐振频率、等效电阻、动态电容、动态电感、品质因数和负载频率等主要电参数。

The relationships between strain and stress of several kinds of high strength fibers, such as Kevlar, Twaron and Dyneema were obtained, and the dependence of mechanical properties of fibers on the strain rate was gotten and explained from the microstructures and deformation mechanism of fibers. Then, the damage and failures of plates with the reinforcement of fibers under high velocity impacting were studied experimentally. Based on experimental results, a set of equations was presented to depicted the deceleration of penetrator. The dynamic response of fiber cluster and sandwich were simulated successfully with a new algorithm and code, which was developped by our group. The coupling effect of stress wave and thermal conduction could be considered with acceptable accuracy and CPU time.

其中，获得了以芳纶纤维为代表的7种纤维的动态应力应变关系，从材料微观机制解释了纤维束的应变率相关特征；得到了板材在高速冲击下的能量吸收机理，以及影响能量吸收机制转变的主要因素；发展了一种新型的原位光学测试技术，以之可以测量试件在冲击加载下的变形场及其演化，该技术除了在本项目应用外，还可以对剪切带的萌生演化、孔洞动态扩张规律进行较好的观察，以弥补相关研究中实验证据的缺乏；发展了含热传导的冲击动力学有限元程序，在侵彻、绝热剪切带、脉冲激光诱导结构破坏等问题的分析中得到了较好的应用。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。