查询词典 high speed

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

The neutron monitor has high sensitivity, light weight and small size. A charge pump circuit is adopted for I-F converter of the gamma monitor. Local data acquisitor consists of CMOS single piece processor with high speed and low power dissipation. A FLEX microcomputer is used as remote centre computer for data handling and graph plotting.

它们的特点是：中子监测器的体积小、重量轻、灵敏度高；γ监测器的测量电路采用电荷泵电路构成的I-F变换电路；本地数据采集器是由高速低功耗CMOS单片计算机为核心组成的；远端中心计算机采用了FLEX微计算机系统对数据进行处理，并以绘图的方式输出，给出直观、便于分析的结果。

This method can obtain high compression rate and high speed. At same time this method based on integral action, so it is easy to be realized by hardware..

该法能得到较高的压缩倍数和快的运算速度，同时该方法全是基于整数运算，硬件实现较容易，详见第六章。

Aircraft is a combined research product of every high technology. It needs a very powerful engine to drive it to fly at high speed, a highly reliable fuselage to stand the action of variable stress, an advanced navigation control system to control the flying direction and posture of the flight, and a comfortable cabin environment.

航空飞行器是各高新技术研究成果的集成，要提供很强动力并保持快速飞行速度的发动机、能承受反复交变应力的可靠性很强的飞行壳体、可控制飞行方向和位姿的先进导航系统和操纵系统、舒适的人机环境空间等。

Read data, the dish a high speed revolves, because of adopting to a sport the delicate aerodynamicist designs, the this time the head of 磁 is placed in to leave the dish data area 0.2-0.5 microns are high of" fly appearance".

读取数据时，盘片高速旋转，由于对磁头运动采取了精巧的空气动力学设计，此时磁头处于离盘面数据区0.2---0.5微米高度的"飞行状态"。

This paper gives an account of the fracture criteria predetermination made for cast or forged heat-resistant alloy or high strength alluminum alloy disk rotors of different structures used in rocket,helicopter and airfreighter gas turbines or marine high speed diesel engine superchargers.

本文叙述了对用于火箭、直升机、运输机的燃气涡轮发动机及船用高速柴油机增压器的锻、铸造耐热合金、高强度铝合金的不同结构轮盘转子破裂准则所作的预先确定；在旋转试验台上进行的轮盘转子破裂试验。

A high-speed high-altitude airstream blowing from west to east near the top of the troposphere; has important effects of the formation of weather fronts.

一种高速、高海拔的风流，通常在对流层的最高处从西向东刮；对锋面的形成有重要影响。

Based on design requirements of analog channel of DAQ system,according to actual problems to be solved in high-speed analog channel,such as parasitic parameter of circuit element,source noise and high frequent crosstalk on PCB,research has been carried out.

基于数据采集系统模拟通道的设计要求，针对高速模拟通道中元件的寄生参数、电源噪声和PCB板上的高频串扰等实际问题进行研究。

Making use of the powerful capabilities of the PCI chip, high-speed data of the DSP platform are transferred both ways at DMA mode, and low speed data such as initialization and configuration information are transf...

此外，本文还介绍了DSP平台的硬件实现及平台电路板制作的经验。利用FPGA的灵活性，本平台可灵活的添加图像处理功能，对于一些需要经常进行特殊图像处理的研究型单位进行教学、研究具有一定的意义。

Epica hear to shop overseas edition, we came to the Chevrolet Ao Chi 4S shop to The King-way mouth a lot of careful study and a test drive, test drive the process in that we really feel Epica overseas edition of the surge of power and good handling, high-speed to achieve the top speed of 190KM, the body no jitter, no significant change in engine sound and smooth shift, stall clear sight of good.

听到海外版景程到店后，我们来到了雪佛兰驰敖4S店来对这款小嘴景程仔细研究了一番并进行了试乘试驾，在试驾过程中我们真正感受到了海外版景程澎湃的动力与良好的操控性，在高速上最高时速达到190KM时，车体没有丝毫的抖动，发动机声音没有明显变化，而且换档顺畅，档位清晰明确，视线良好。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。