测量误差

This article in the middle school voltammetry measured resistance (in connection, outside connection) in the foundation, has carried on the error analysis to the measurement result, and carries on the innovation design according to the ohm's law to the electric circuit, has carried on uncertainly, the relative error, the precision comparison to two kind of surveys plans result.

本文在中学伏安法测电阻的基础上，对测量结果进行了误差分析，并根据欧姆定律对电路进行创新设计，对两种测量方案的结果进行了不确定度、相对误差、精确度的摘要物理学是自然科学的重要学科之一，是一门建立在实验基础上的科学。

In the dissertation the influences from the fabricating error and operation status of a pentagonal prism were discussed. The factors influencing the measurement accuracy of the system were analyzed theoretically.

文中还论述了五角棱镜的制造误差和工作状态对系统测量精度的影响，对大尺寸形位误差测量系统的精度进行了分析和实验，理论分析与实验结果相符。

A measuring system which mainly consists of a high precision motorized translation stage of one dimension, POINT GREY Flea2-14S3 CCD camera and LED light source was designed and constructed. Based on a detailed analysis for experiment results, the periodic changing law of system error of LED facula centroid location in this measuring system was found. The results indicate that based on Flea2-14S3 CCD camera, the random error of facula centroid location is about 0.018 pixels, the system error is about 0.06 pixels, and the total error is about 0.063 pixels (1/15 pixels).

利用高精度一维电动平移台、POINT GREY Flea2-14S3 CCD 相机和LED 光源构建了测试系统，对测试结果进行研究和讨论，发现了测试系统LED 光斑质心定位系统误差的周期性变化规律，计算得到了基于Flea2-14S3 CCD 相机的光斑质心定位随机误差为0.018 pixels，系统误差为0.06 pixels，总体误差为0.063 pixels(约1/15 pixels)，能够应用于以光斑质心检测为手段的测量系统中。

A measuring system which mainly consists of a high precision motorized translation stage of one dimension, POINT GREY Flea2-14S3 CCD camera and LED light source was designed and constructed. Based on a detailed analysis for experiment results, the periodic changing law of system error of LED facula centroid location in this measuring system was found. The results indicate that based on Flea2-l4S3 CCD camera, the random error of facula centroid location is about 0.018 pixels, the system error is about 0.06 pixels, and the total error is about 0.063 pixels (1/15 pixels). According to the total error above, this CCD imager can be widely used in many measuring systems which count on facula centroid subpixel detection.

利用高精度一维电动平移台、POINT GREY Flea2-14S3 CCD相机和LED光源构建了测试系统，对测试结果进行研究和讨论，发现了测试系统LED光斑质心定位系统误差的周期性变化规律，计算得到了基于Flea2-14S3 CCD相机的光斑质心定位随机误差为0.018pixels，系统误差为0.06pixels，总体误差为0.063pixels（约1/15pixels），能够应用于以光斑质心检测为手段的测量系统中。

These errors together with the self-induced vibrations and forced vibrations affect the measuring results, and cause dynamic errors.

指出这些误差和测量机组成部件的自激振动、受迫振动等将对测量结果产生影响，引起动态误差。

On ultra precision lathe, author propose the principle of error in-process measurement and compensation of cylinder, end and contour, and use adjusted straightedge and sensor to build error on-line measurement and compensation control system of end turning.

研究了基于模糊数和插值原理的模糊控制算法，并用该算法实现了压电陶瓷微动刀架伺服系统的闭环控制，使其控制精度达到了±0.01μm；在超精密车床上，提出了圆柱面、端面和轮廓加工的误差在线测量与补偿原理，并利用标定的直尺和传感器建立了端面车削误差在线测量和补偿控制系统。

In this paper,the truncated error of trapezium methodis analyzed under ideal state of electrical power parameters,a sin function,when sampling digital measurement and the relationship between the error and the amount of sampling points is offered.

对电力参数的理想情况采样数字化测量的典型算法的截断误差进行了分析，给出了误差与采样点数的关系；根据国家关于电能质量和公用电网谐波的标准规定，对非正弦状态下的误差也做出了符合实际的估计；在电网正常情况下截断误差与采样点数的关系与理想波形时相同。

The main content of this dissertation can be described as follows: Firstly, the precision measuring theory of spindle rotatory error by the single, double, trinary sensor respectively is researched more thoroughly along with the elimination principle of measurement deviation. According to the characteristic of boring, a new measuring theory and its evaluation criteria of two radiating sensors is proposed based on the theory of relative axis trace movement.

全文围绕实现主轴回转误差的测量与补偿理论机器在镗削加工中的应用研究展开，具体内容概括如下：首先，在分析主轴回转误差的精密测试理论之后、对单传感器、双传感器、三传感器方法的测试理论，测量偏差的消偏原理等理论进行深入地研究。

Applying this method to process the measured tracking signal of trajective missile,we successfully separate true trajective,draft error and random error.

应用该方法对运载火箭的外弹道跟踪测量信号进行分析处理，成功地分离了测量信号中的轨道、漂移误差和随机误差。

To reduce the screw errors produced by the machine tool driving train, the forward and backword positioning values were measured by laser interferometer and the results were used as a nonlinear unit in the semi-closed loop structure to fulfill the screw compensation.

为降低机床传动机构所产生的螺距误差，通过激光干涉仪实际测量正反向定位值，将测量结果作为一个非线性环节引入半闭环结构中实现机床的螺距误差补偿。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。