动态测试

A dynamic monitoring and identifying system of Fe2O3 series gas sensors for the research of electronic nose is introduced. The system has 6 channels to input 0~2.5V voltage signals, measures system temperature, makes thermoregulation for sensor with hardware and has LCD screen and voice function. The heating circuit using TL494 chip and PWM mode is realized. Offline and online identification is realized. The hardware design is based on 16 bits MSP430F149 microcontroller. The software design for digital acquisition and identification based on Windows operating system is compiled by Visual Basic 6.0. The test results show that friendly interface, simple operation, accurate data, reliability and stability are obtained. The real-time monitoring for all of the sensors in aerometry or identification can be realized by BP ANN.

介绍了一种用于电子鼻研究的Fe2O3系列气敏传感器阵列动态测试、控制和识别系统；该系统能够同时采集6路0~2.5V的模拟电压信号，测量系统温度、硬件对传感器进行温度补偿，同时具有液晶显示和语音功能；加热电路用TL494芯片采用PWM方式实现，能实现脱机和联机两种不同的识别模式；以16位单片机MSP430F149为核心设计了硬件系统，用Visual Basic 6.0设计了基于Windows操作系统下的数据采集与模式识别软件；该软件界面友好，操作简单，数据结果准确，运行可靠、稳定，既可以长时间实时显示各传感器的全部动态响应过程，又可以用BP神经网络进行模式识别。

The dynamic test system based on PXI bus consists of machine-box, controller, dynamic collect board and signals measure modulation.

基于PXI总线的动态测试系统，由机箱、控制器、动态采集板及信号调理模块组成。

We take the C program of equation root as example,and implement the software testing.The outcome of the experiment,that is ,dynamic coverage and performance analysis, is presented.

以求方程根的c 程序为例进行PC104 系统的软件动态测试，最后给出了动态覆盖率及性能分析的实验结果。

YE62 series of dynamic data acquisition system supports a wide range of pre-conditioning input and automatically identify the type and parameter settings, constitute a multi-functional dynamic testing and analysis system.

YE62系列动态数据采集器支持多种前置调理器的输入，并自动识别类型和进行参数设置，构成多功能动态测试与分析系统。

Dynamic rheological test was introduced and the dynamic shearing modulus G', the loss modulus Gand the complex viscosity of coatings were measured.

把流变动态测试引入铸型涂料的研究，测量出了铸型涂料的动态剪切模量G〓、损耗模量G〓和复合粘度η〓。

Based on theory of strobe imaging the EL6249C is used to design a set of strobe driving circuit to drive high light LED to generate strobe light for MEMS dynamic test.

文中根据频闪成像原理，利用EL6249C设计了一套频闪驱动电路，该驱动电路可驱动高亮LED ，以产生MEMS动态测试中所需的频闪光，为后续MEMS器件的动态特性提取和分析做准备。

After referencing the specification of the national standard GB/ T11648-89, according to the petroleum industry condition, the torsional vibration, pendular vibration, exciting force self-synchronizing and stability of synchronizing,the stability of vibrate synch ronous transmission of two and more long vibration motors are tested. All of above testing parameters will replenish the blank of both product development and quality test measure of this type of motors both here and abroad.

参阅国家标准GB／T11648-89的技术要求，并针对石油现场的实际条件，本课题对两台和多台隔爆长形振动电机的扭振、摆振、激振力大小，自同步性和同步状态稳定性，振动同步传动稳定性等技术参数进行了模拟动态测试，而这些新增设技术参数的测试均是填补国内外此种新型电机产品研制开发和质量检验测试的技术空白。

Field app lication shows that the sys2tem resolves the p roblem of testing impact deceleration dynamically, and realizes the automation of the testing p rocess, reduces er2rors and imp roves the reliability of the test results.

现场应用表明该系统解决了目前冲击减速度无法动态测试的问题，而且实现了测试过程的自动化，减小了误差，提高了测试结果的可靠性。

The technical parameters of the key parts including the magneto generator, chain wheel, countercurrent power source and so on are chosen. And the key parts are designed and processed.

此研制通过对永磁发电机、链轮、逆变电源等关键部件进行技术参数选取而进行设计制作；同时，对作为主体结构的自行车架建立了有限元动态分析模型，进行了有限元的模态计算分析和动态测试分析。

For fault diagnosis and service of Anti slip Brake System, initial start test, the dynamic tests, examination mode, arrester exhaust and wheel speed sensor service etc. are relatively modem test methods.

对于防滑制动系统的故障诊断和维修，初始化测试、动态测试、诊断模式、制动器的排气和轮速传感器维修等都是比较先进的测试方法。

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。