测量误差

Therefore, straightness measurementis the most basic and important measurement.

因此直线度误差的测量是一项最基本也是最重要的测量。

Therefore, how to deal with the proper systematic error correction, to effectively improve the precision of the measurement, and unlikely to increase the project cost is the main purpose of this research.

因此，如何在二三等水准测量中，适当的加入系统误差改正，有效的提升测量成果之精度，又不致增加作业成本，为本研究之主要目的。

In this paper, the principle and hardware of test system are designed and the step motor's control software is designed at the same time. The assessing methods of linearity errors are analyzed and the test methods of linearity, diameter and roughness are provided and the corresponding softwares are programmed with VB. At last, the test method of roughness without touch-light scattering is proposed.

论文对检测系统的原理及硬件电路进行了设计，同时对步进电机的控制软件进行了详细的设计；对直线度误差的评定方法进行了分析，分别给出了炮膛内径的直线度、直径及阴阳膛表面粗糙度的测量方法，并用VB 编写了相应的控制软件，最后提出了一种炮膛粗糙度非接触测量法—光散射法。

Base on the theory and calculational method of infrared thermograph,the test method and data processing method for surface-type infrared decoy area and the error factors in affected measurements are researched in the article. The test method is simple and facile.

本文针对红外热像仪的测量原理和计算方法，对面源红外诱饵面积的测试方法、数据处理方法及影响测量的误差因素进行了研究。

In view of the inaccutate transient current and voltage measurment data using domestic equipment in the present, the paper...

应用电磁场的原理，分析了测量数据误差产生的原因，并在频域下对数据进行了补偿，提高了测量数据的准确度。

The idea is expelling the random error by the surface of field and getting exact result by the two-wheel speed signal's on-line treatment.

本课题的主要目的是研制一种面向农机具田间测速、测距的双轮测量装置，思路是通过对双轮速度信号的在线处理，排除地表状态引起的随机误差，使测量结果更准确。

Through concretely analyzing the magnitude and error of deflection of the vertical, we can get the results that the long-period, smaller-range non-tidal variations are commonly less than the tidal ones, but the short-period, larger-range non-tidal variations are comparable to the tidal ones, especially in some areas they are even bigger than the tidal ones, this state can be measured by repeated gravimetry completely.

通过对垂线偏差量级和误差大小的具体分析，得出结论：一般长周期的、幅度较小的非潮汐变化要小于潮汐变化，但短周期的、幅度较大的非潮汐变化则可能与潮汐变化相当，个别地区甚至还会超过潮汐变化，这种情况完全可以用重复重力测量的方法检测到，这也说明重复测量的方法是可行的。

According to structure characteristics of on-line CMM and the property of non-coincident zero point, error correction model of CMM is built by homogeneous transformation matrix.

根据在线坐标测量机结构特点和零位不重合的特征，利用齐次变换矩阵建立测量机的误差修正模型。

The structure is novel,the technology is advanced,the structure is novelty,the operation is easy and flexible and maintenance is convenient all kinds of material's mechanical performance's arylate and the test of production's quality.It is used for scientific research department advanced school or technical secondary school and enterprise.

技术参数： 1、量程范围：5KN 力值精度：示值的±0.5%以内 3、试验速度：0.1mm/min--500mm/min 速度允许误差：示值的±1.0%以内 4、有效拉伸距离：900mm 5、位移测量精度：示值的±1.0%以内 6、变形测量精度：示值的±1.0%以内 7、采集速率：50次/S 8、打印功能：打印测试后的试验数据及曲线 9、电源电压：AC220V 50Hz 10、外型尺寸：550mm×450mm×1600mm 11、重量：75kg

Focal error signal of pickup head is achieved according to the Astigmatical principle, and that the optical non-contact probe system with the measurement ranges of 2um and the measurement uncertainty of 1.1nm is obtained. This probe system is immune to the variation of reflective ratios and curvature on the surfaces of samples via improvement of the signal process method.

其中根据光学象散原理得到激光读取头的聚焦误差信号，从而获得测量范围为2μm，测量不确定度可达1.1nm的光学非接触探头系统，通过改进信号处理方式，此探头系统可不受材料表面反射率变化的影响，并允许样品表面存在一定的曲率变化。

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。