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tracking mechanism
相关语句
  跟踪机构
     With double-axis and single rotating mirror driven by double-motor as tracking mechanism, the structure of the system is simple, its motion is flexible and its solid corner is about ±35°.
     以双电机驱动的双轴单转镜作跟踪机构,结构简单,运动灵巧,立体转角约±35 °;
短句来源
     A laser tracking 3D coordinate measuring system based on muti-lateration and it's tracking mechanism design
     多边法激光三维坐标测量系统及其跟踪机构设计
短句来源
     (4)The astrolabe is equipped with high and low speed motors,as well as an automatic tracking mechanism in azimuth direction.
     (4)此仪器设有快、慢传动电机和自动方位跟踪机构.
短句来源
     Since the performance of tracking mechanism has significant influence on the system performance,an independent type tracking mechanism has been designed.
     由于跟踪机构的性能对整个测量系统的影响大,为此设计了一种独立式跟踪机构
短句来源
     The working principle and main functional features of the system,as well as the working principle,construction and error sources of the tracking mechanism are introduced.
     介绍了系统的工作原理和主要功能特点,论述了跟踪机构的工作原理、结构及其误差。
短句来源
  跟踪机制
     Research of Application Layer Protocol Filter Method Based on Connection Tracking Mechanism of Linux Firewall
     基于Linux防火墙连接跟踪机制的应用层协议过滤方法的研究
短句来源
     The connection tracking mechanism in Linux firewall is analyzed briefly at first. Based on it,a high efficient method to identify the application layer protocol is expanded on. Finally,a simple application layer protocol filter system based on the method is presented.
     论文首先对Linux防火墙的连接跟踪机制进行了简要分析,在此基础上提出了一种基于连接跟踪机制的高效的应用层协议过滤方法,并给出了以此方法为核心的过滤系统的简单实现。
短句来源
     In this paper,tracking mechanisms of Wireless Sensor Network(WSN) are discussed. Considering hiberarchy of WSN,a new improved tracking mechanism,including dual prediction and flooding recovery is proposed.
     文章对无线传感器网络(WSN)目标跟踪机制进行了研究,针对层次型的WSN,提出一种高效的跟踪机制,包括双层的预测机制,以及泛洪(flooding)扩散的恢复机制,并对这两种机制进行了详细的分析。
短句来源
  “tracking mechanism”译为未确定词的双语例句
     Research and Improvement on Tracking Mechanism in Wireless Sensor Network
     无线传感器网络目标跟踪机制的研究与改进
短句来源
     According to situation that the existing Digital Rights Management (DRM) systems lack generally interoperability and tracking mechanism,an improved DRM model based on PKI/PMI,watermark and RBAC is presented in this paper,and its work process and security features are discussed.
     针对现有的DRM系统普遍存在互操作性和追踪机制的情况,本文提出了一种基于PKI/PMI、数字水印和RBAC的DRM模型,并分析了其工作流程和安全特性。
短句来源
     This paper studies the integration tracking mechanism of centralized multiradar system, such as tracking file management, operation mechanism, etc.
     本文研究了集中式多雷达综合跟踪机理,如跟踪系统文件管理、运行机制等;
短句来源
     A dynamic mathematical model of tracking mechanism with multi-way valve is established, and design criteria are given in this paper. Practical applications of the said model and criteria are described through examples.
     本文建立了多路阀随动控制机构的动态数学模型,给出了设计准则,并以实例说明了该模型及准则的应用。
短句来源
     Dynamic characteristics of tracking mechanism with multi-way valve
     多路阀随动控制机构动态特性
短句来源
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  tracking mechanism
Although the Weaving Wall was developed to support a tracking mechanism for recovering the three-dimensional structure of a scene being traversed, other applications of the surface-building process have since become apparent.
      
We describe a tracking mechanism that operates locally on these evolving surfaces in carrying out three-dimensional scene reconstruction.
      
The tracking mechanism is simple yet effective and eliminates the need to suspend averaging for manual measurement of peak parameters.
      
The computed uncertainties are utilized for navigating the observer automaton state space, asserting state transitions and developing a suitable tracking mechanism.
      
We demonstrate that in our case the computational complexity, which is exponential if we only use a purely data-driven bottom-up scheme, is polynomial when using the hypotheses tracking mechanism.
      
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The photoelectric astrolabe type I was made in China in 1971;and several improved photoelectric astrolabes,of a second model,were constructed from 1972 to 1974.The principles and a description of the main parts of the new instruments are as follows : (1)By means of a fused quartz mirror system and mercury horizon(shown in fig.4),a telescope with a fixed glass grid,three photomultipliers with respective a.c.amplifiers and a time recorder,the astrolabe can determine the time of almu- cantar transit of a star without...

The photoelectric astrolabe type I was made in China in 1971;and several improved photoelectric astrolabes,of a second model,were constructed from 1972 to 1974.The principles and a description of the main parts of the new instruments are as follows : (1)By means of a fused quartz mirror system and mercury horizon(shown in fig.4),a telescope with a fixed glass grid,three photomultipliers with respective a.c.amplifiers and a time recorder,the astrolabe can determine the time of almu- cantar transit of a star without personal error. (2)The evacuated Ritchey-Chrétien telescope has an aperture of 20 cm and a focal length of 2.4 m. (3)As is expected,the vacuum telescope tube with horizontal entrance window is able to eliminate astronomical refraction,the dependence of refraction on the spectral class of the star and irregular refraction in the tube.Besides,the vacuum tube provides a stable environment for optical system,especially for mercury horizon. (4)The astrolabe is equipped with high and low speed motors,as well as an automatic tracking mechanism in azimuth direction. (5)In order to reduce the heat influence from the surroundings,the astrolabe is set on the first floor of the observing building,whereas the control console,elec- tronic equipments and the operator are on the ground floor. At Shanghai Observatory,observations have been carried out with the new instrument since Sep.1974.The excellent results obtained will be published later on.

我国于1972年制成Ⅰ型光电等高仪,1974年又制成Ⅱ型光电等高仪.新仪器的特点如下:(1)借助熔石英角镜组和汞地平、一架望远镜和固定的玻璃记录栅、三个光电倍增管及其交流放大器和一架计时仪,此仪器能无人差地测定星过等高圈时刻.(2)真空的 R-C 望远镜的口径为20厘米,焦距2.4米.(3)有水平入射窗的真空镜筒能消除天文折射、大气色散及镜筒内的反常折射.真空镜筒还为光学系统及汞面提供了一个稳定的环境.(4)此仪器设有快、慢传动电机和自动方位跟踪机构.(5)为消除周围物体的热影响,此仪器安放在观测室楼上,而控制台、电器设备和操作者都在楼下.自1974年10月起,此仪器已在上海天文台进行了常规观测.获得的优良观测结果将在以后发表.

The faceted fixed mirror solar concentrator is a novel solar energy utilization device which was developed in the last few years. Compared with the generel tracking concentrator, it has many advantags; its mirror surface is fixed, and the supporting frame of the mirror surface can be made of genereal architectural materials such as cement, sand, brick and steel which can thus be selected to suit measures to local conditions. And, when the incident ray is variable, it needs only change the location of the absorber...

The faceted fixed mirror solar concentrator is a novel solar energy utilization device which was developed in the last few years. Compared with the generel tracking concentrator, it has many advantags; its mirror surface is fixed, and the supporting frame of the mirror surface can be made of genereal architectural materials such as cement, sand, brick and steel which can thus be selected to suit measures to local conditions. And, when the incident ray is variable, it needs only change the location of the absorber in order to receive the reflected rays from the mirror. Especially in the case when its long axis is laid in the westeastern orientation, the tracking mechanism of the absorber can be made very simple. So it has the benefit of low cost and easy to operate and maintain. Since it was developed, FMSC has been brought to the attention of many countries in the world.This paper makes a theoretical analysis of its basic optic principle; discusses the design methed; obtained a n—θ chart; and gives a detailed description of the use by this chart which can greatly reduce the calculation work in designing. It can also be of help to the further study of FMSC.

固定条形镜面聚光器是近几年内发展起来的一科新型太阳能利用装置。它与一般镜面跟踪的聚光器相比较,具有不少的优点。它的镜面是固定不动的,可用普通建筑材料,如水泥、砂子、砖、角钢等材料来制造支承镜面的骨架,因此完全可以因地制宜地来选择材料,当入射光线变动时,它只需要变动吸热器的位置就可以接收反射的光线,特别是东西向放置时,吸热器跟踪机构就更为简单,它使用管理方便,成本低廉。因此自从问世以来,便引起了世界各国广泛地重视。本文从理论上分析了它的基本光学原理,探讨了设计方法,得到了n—θ图,并洋细介绍了该图的使用方法,可以大大减少设计中的计算工作。对进一步研究固定条形镜面聚光器可能亦有帮助。

In order to cut the holes and beveling the grooves for nozzle and tubularconnection welds on the wall of pressure vessels,an automatic contour-saddlecutting machine has been developed.The results,from the applications inlast three years,have shown that the accurate shape and dimensfon,thesmooth quality of surface have been obtained with this kind of cuttingmachine.The paper presents the design of tracking mechanism,discusses thetracking accuracy for the cutter along the curve of saddle and the deviation...

In order to cut the holes and beveling the grooves for nozzle and tubularconnection welds on the wall of pressure vessels,an automatic contour-saddlecutting machine has been developed.The results,from the applications inlast three years,have shown that the accurate shape and dimensfon,thesmooth quality of surface have been obtained with this kind of cuttingmachine.The paper presents the design of tracking mechanism,discusses thetracking accuracy for the cutter along the curve of saddle and the deviation ofhole size etc.The approval test of cutting process is introduced.

本文研制的马鞍形曲线自动切割机自应用以来已近三年。它主要用于在电站锅炉及其他压力容器行业中切割马鞍形的焊接坡口。其应用结果表明:使用该切割机割出的焊接坡口具有良好的尺寸精度和表面质量。如与马鞍形埋弧自动焊机配套使用将有利于提高压力容器上的马鞍形焊缝的质量。本文主要对马鞍形自动切割机的设计、马鞍形曲线的跟踪精度、割出的马鞍形坡口的尺寸偏差进行了讨论并介绍了有关切割工艺验证工作。

 
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