系统误差

Therefore, in an adaptive finite element analysis system, the error estimator is one of key roles.

因此，误差估计也是自适应有限元分析系统中十分关键的组成部分之一。

An adaptive control algorithm is proposed for Stewart platform which is usually used to as a flight simulator. Firstly, the coupling force caused by the dynamics of the legs is compensated using the New ton Euler inverse dynamic formula, and the simple error dynamic is obtained.

针对应用于某型飞行模拟器的Stewart平台，首先利用Newton-Euler逆向力公式对平台动力学方程中形式复杂的连杆动态特性进行补偿，得到形式简单的误差动态系统。

The experimental results show that tracking error caused by mechanical vibration can be effectively suppressed, which indicates that the scheme is feasible.

实验结果证明了该系统可有效补偿由机械振动等引起的跟踪误差，验证了该方案的可行性。

A detected error will then result in the web being gathered back into the festoon system where the error is positioned upon the inspection table for rectification.

阿发现错误然后将结果在网上收集到的绳系统的定位误差时圆桌会议的检查整顿。

Therefore,the Low Pass Filter is introduced on base of common sliding mode control.The control law can guarantee fast convergence of trajectory tracking error as well as robustness for external disturbances and parameter uncertainties.

在一般滑模控制的基础上引入低通滤波器，则保证了轨迹跟踪误差的快速收敛，同时使系统具有很强的鲁棒性。

It has become one of the important tasks in the study on modern electric system. At first, this text has briefly introduced meanings, the current development and the main methods which the electric load forecasting are used. This paper aimed at the floatability which the load data had and the nature that neural networks model is easy to fall into part infinitesimal value and low iterative speed, this paper proposed a method based on neural networks and SVM. SVM can dispel the less summation and the larger single point errors of neural networks, and the neural networks could dispel the simplification of the model of the vector support machine.

本文首先介绍了电力系统负荷预测的意义、发展现状和主要方法；针对负荷数据具有浮动的特点以及神经网络模型算法容易陷入局部极小和迭代速度较慢的缺点，提出了一种基于神经网络和支持向量机的混合负荷预测方法，此方法能通过支持向量机消除神经网络的总和较小但单点误差较大的不利现象，而神经网络消除了支持向量机的模型简单问题。

Magnetostrictive liquid level sensor, a kind of instrument for measurement of liquid level, is worked out on the basis of combined use of many technologies such as magnetostriction, flotage principle, electromagnetism induction and electron-technique. The measure instrument has many specialties, such as the error is tinier, the reading is righter, the range of measure is broader, the maintenance and useness is very convenient. As compared with common liquid level sensors, this kind of sensor has a lot of special advantages for high-precise measurement of liquid level.

磁致伸缩液位传感器是综合利用磁致伸缩效应、浮力原理、电磁感应、电子技术等多种技术研制而成的液位测量仪表，该传感器系统具有测量误差小、读数准确、测量范围大，维护及使用方便的特点，它在高精度液位测量领域中相对于传统液位传感器具有许多独特的优势。

Since it is unable to provide the correct focal distance data to the camera, it inevitably brings the calculation adjustment error which can cause the vibration due to the system error.

因为无法向相机提供正确的焦距数据，必然带来AS功能引入的计算校正误差，会导致系统错误造成的抖动。

For nonlinear friction force in hydraulic position tracking system, partition compensation is to solve the problem of large approximation error caused by non-smooth characteristic of friction when the whole friction is compensated by one fuzzy neural network.

针对液压位置跟踪系统中的非线性摩擦力，提出对摩擦力模型的不同分量分别进行补偿的分部补偿算法，以解决用模糊神经网络对摩擦力整体进行补偿时，因摩擦力非光滑特性引起较大逼近误差的问题。

By scanning the standard gauge block, the relative measurement error of the system was less than 0.25%.

对标准量块进行扫描实验得到系统的相对测量误差小于0.25%。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。