误差

The factors that have effect on the determination results of PET chip b value were analysed from two aspeots such as the system error and accidental error.

从系统误差和随机误差2个方面对影响聚酯切片 b值测定结果的各种因素进行分析，采取了相应的对策，可以消除各种误差产生来源，测定结果重复性好，正确反映出产品品质。

There are the main factor of mosaics precision for IC micro-image, the local mosaics error due to feature was not significant., the accumulated error due to mass image and so on, which were analyzed further.

分析影响IC晶片显微图像拼接精度的原因，包括特征不明显等造成的局部拼接误差和海量图像数据造成的累积误差，并探索减少误差的方法。

The test result shows that the instruments at the same accuracy grade provide different cycling error, so it is necessary to provide maximum cycling error to guarantee all of the measurement errors within the limited range.

试验结果表明，相同准确度等级的仪表，其回转误差优劣相差很大，因此，必须提供仪表最大回转误差，以确保所有测量误差处在限定范围之内。

Sampling error or allowable error is conventionally accepted between 1% and 10%; however, it is suggested that sampling error should be carefully assessed in light of the nature of the derivation of the population proportion and other aspects of the initial data.

抽样误差或允许误差是接受常规的1 ％和10 ％，但是，有人建议，抽样误差应当认真评估根据的性质推导的人口比例和其他方面的初步数据。

People are required to know and analyze the operating axes of rotary kiln in time in practice, in order to adjust and maintenance it in reason. So The Great Wall Aluminum Corporation of China bankrolled for studying the microcomputer real-time monitoring system of large-scale rotary kiln and commissioned Central South University to develop it.Based on analyzing and comparing the status quo of the monitoring system of rotary kiln, this paper brings forward a new method of monitoring the operating status of rotary kiln. It analyses the system-error and the configuration and demonstrate the feasibility in detail. In the design of hardware configuration it analyzes the principle and speciality of the tailor-made eddy current transducer and PCI-1713 analog input card and the multilevel supervisory network.

本论文首先在分析和比较同内外回转窑检测系统现状的基础上，首次提出了新的回转窑运行状态检测方法，并从系统误差及可行性角度进行了详细的分析和论证；其次，在监测系统硬件结构设计中，详细地分析了多级管理网络的实现，PCI-1713双缓冲区高速数据采集装置的原理、特点、工作过程，以及针对该系统恶劣的工作环境、特定性能要求而设计的特制电涡流传感器的原理、波形特性及性能特点，及为了减小非线性误差而采用计算机软件进行多段线性插补方法实现误差补偿；另外，在系统软件设计中，详细地分析了高速数据采样软件、智能信号处理软件、系统监测软件的实现，分析了采用模糊自适应滤波方法有效地滤除本系统恶劣环境下的各种干扰因素，并简要地介绍了系统分析软件的功能。

In comparison with the angle of minimum deviation, the errors are analyzed and the correcting method for the temperature affect is given.

验证实验中，着重就与最小偏向角测量法的对比情况进行了介绍，分析了测量误差，推导了调整误差，样品加工误差对折射率测量的影响，并对环境，特别是温度，的影响进行了讨论，给出了影响曲线及补偿方法。

And linking the principle of choosing computer visual inspection system hardware, the paper constructs hardware structure of visual inspection system, and develops measure software of thread geometry parameter and applies all above research results to quantificationally measure geometry parameters such as half angle of thread, coning and pitch of conical joint screw thread of graphite electrode, at last educes influencing expressions of the shelter of lead angle to half angle of thread change, it establishes theory base for error amendment.

论述了微小零件尺寸及形状误差的常用测量方法，提出了将视觉检测技术应用到微小零件尺寸及形状误差的测量中，构建了视觉检测系统的硬件结构，开发了相应的测量软件，应用第三章介绍的各种边缘检测方法对传动用滚子链链板进行了边缘检测对比实验，找出适合的边缘检测方法，并应用上述各章的研究结果对传动用滚子链链板节距以及圆形零件的圆度误差进行了测量。

By definition,for targets located in a spherically stratified lower atmosphere or ionosphere,this paper derives the residual error models［Formulae (14) and (20);(24) and (27);(57) and (59),(63) and (65)］ of elevation angle refraction errors,range refraction errors and range rate refraction errors corresponding to monopulse radar and trilateration radar.

提要 本文从定义出发，推导出目标在球面分层低层大气或电离层内仰角折射误差、距离折射误差和相应于单脉冲雷达与三站雷达的距离变化率折射误差的残差模型［式(14)与(20)；(24)与(27)；(57)与(59)，(63)与(65)］。

There are two sources of error: error manifested as an apparent magnification drift and error due to fringe tracing.

两种误差来源：放大倍数的改变引起的误差，图像歧变引起的误差

The result shows that the mixed boundary condition can greatly reduce the calculation area without affecting accuracy of the solution.It is followed by the higher accuracy of Dirichlet boundary condition which makes the boundary error greater when measured points is near the boundary, so we must take a sufficiently large border region.The homogeneous boundary condition has relatively large error, but the use of non-triangle poles devices makes apparent resistivity calculation error become small, because of elimination of the effect on potential difference for the infinite boundary. In inversion, in order to save computing time, homogeneous boundary conditions are often used to perform finite element forward calculation.

结果表明，混合边界条件精度最高，可大大缩小求解区域而不影响计算精度，其次是Dirichlet边界条件精度较高，但测点越靠边界误差会越大，必须取足够大的边界区域，齐次边界条件的误差比较大，但如果采用非二极装置，通过电位差计算得到的视电阻率，由于无穷远边界对电位差的影响基本消除，视电阻率计算误差与混合边界条件下的接近，在反演中，为了节省计算时间，经常使用齐次边界条件进行有限元正演。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。