极限误差

选择计量器具测量极限误差的合理方法

A Method for Selecting Limit Error in Measuring Instruments

试验结果表明，该方法标定精度较高，标定后的实验装置的极限误差3σ为2.26μm。

The experimental results show that calibration precision is high and the limit error , 3 σ, of the experiment equipments calibrated by this method is 2.26 μ m.

经纬仪一次水平测角极限误差的检测

Test of maximum error of one measuring horizontal angle of theodolite

讨论了直线度误差的平均值及其极限误差问题；

Discusses the average value and limiting error of straightness error .

缸筒加工尺寸极限误差附近数据的探讨

Discussing the data of the limited error in cylinder jacket processing

直线度的极限误差计算

Mobile Computing Calculation Methods of the Error Limits of Straightness

关于直线度误差的平均值及其极限误差

On the average Value and limiting error of straightness error

σ未知时极限误差的计算

The computations of limiting error for a unknown

在设定的参数条件下，计算各种方法的极限误差。

Under the known parameters , the limit errors of those are showed out by numerical calculation .

利用随机误差的按极限误差合成的方法对微小型零件的装配误差进行了合成计算。

Assembly errors were calculated based on the theory of random error synthesis according to limit error .

其次给出了防洪预报调度的设计允许极限误差的定义以及水库和下游防洪危险度的定量化计算公式；

The allowable forecast error in design phase was defined and formulae for calculating the risk degrees were derived .

总不确定度在1%，极限误差优于±3%。

The total uncertainty is about 1 % , and the error limit is less than ± 3 % .

建立了采样点均匀分布情况下，圆度误差测量采样点数量与测量极限误差之间的定量关系数学模型。

Under the situation of even distribution of fitting nodes , a mathematic model is established by means of the relation between the number of fitting nodes and the limit error of measurement .

提出了各采样点示值数据图形相对于评定基线不同分布时的直线度误差的极限误差的分析计算方法，给出了计算实例，并得出了相应的结论。

It puts forward the analysing and calculating method of the limiting error of straightness error when the figure of sampling data is differently dispersed relative to datum line , and gives some examples of calculating and draws a final conclusion .

实际测量数据的分析表明，该方法与传统的一次水平测角极限误差相比，可以获取更详细的误差信息，并可大大减小经纬仪使用时的测量不确定度。

The result of experimental data analysis indicates that the method of spectrum analysis and error correction can get the error information more detailedly and reduce the uncertainty of measurement greatly during the measurement of theodolite , comparing with the classical method of limit error for single horizontal angle-measurement .

在这基础上，推导出了按最小条件评定直线度的极限测量误差的计算式。

Based on this , the formulas for calculating , according to the minimum condition , the measuring error limits of straightness have been derived .

理想光子探测器背景探测极限理论的误差分析

The Error Analysis of Limit Theory about Background Survey by the Ideal Photon Detector

岩土边坡刚体极限平衡法的误差根源与范围研究

Research on the Error-mechanism and Error-Range of the Rigid Limited Equilibrium Method in the Stability of Rocks Soil Slope

通过实例分析了工装设计中采用极限计算法估算误差的缺陷，介绍了瑞利计算法的原理及计算实例。

The defect of limit algorithm during estimating errors in the design of processing equipment is analyzed by examples . The principle and calculating examples of Rayleigh algorithm are introduced .

此方法概念简单明了，与传统极限平衡法的误差在允许范围内，结果可信。

The concept of this method is simple and clear , and error compared to the traditional limit equilibrium method is in the accepted range , which makes the results credible .

光波导无源环形谐振器是微型光波导陀螺的核心敏感部件，其性能直接影响陀螺的极限分辨率和各误差项，是此种陀螺设计和制造中的关键。

The passive ring resonator is the core sensing element in the micro optic waveguide gyroscope . Its performances influence the minimum resolution and the error items of gyroscope directly . And , it is the key of the design and manufacturing .

运用有限元软件ANSYS求得的实际尺寸模型极限荷载小于使用相似理论推算的模型极限荷载，误差约为15%。

By using the finite element software ANSYS , the ultimate load of actual size model less than the load which is calculated using the similarity theory , error about 15 % .

本文利用上述所提出的双端极限学习机构造一个多神经网络学习系统以降低神经网络极限误差，并将其命名为父代子代渐进学习机。

In order to further reduce the limit RMSE , in this thesis , we proposed a new learning system based on multi-bidirectional extreme learning machine called parent-offspring progressive learning machine .