误差的补偿

Temperature drifts and time varying drifts are primary factors of error of electronic analytical balance.

温漂和时漂是电子分析天平产生误差的主要原因，其自动补偿具有重要意义。

A neural network based method for compensating dynamic inversion error is introduced in this paper and is applied in the control of a supermaneuver ing aircraft.

讨论了一种基于神经网络自适应补偿动态逆误差的方法，并应用于超机动飞机控制器设计中。

Automatic compensation of workpiece positioning error is an important guarantee of high efficiency and accuracy.

工件定位误差自动补偿技术是其高效率、高精度生产的重要保证。

With coupler embedded and acceleration sensitivity compensation design, the structure symmetry is insured, which can induce the acceleration sensitivity effectively. The acceleration sensitivity compensation design also improves the production efficiency of FOH for towed linear array application.2. A good theoretical simulation platform, utilizing the method of elastic mechanics and the finite element method, is established, which can provide an effect predictive design for FOH. The experimental results are in good agreement with the theoretical analysises.3. Some key technology problems in the making of FOH for towed linear array application are conquered. The new developed FOH, with an acoustic sensitivity of -143.0dB, has acceleration sensitivity less than -30dB, which exceeded to results from other international reports.

本论文的主要成果和创新在于：1、提出了耦合器内嵌、带加速度灵敏度微调补偿的低加速度灵敏度光纤水听器结构，最大程度保证了工艺结构的对称性，实现了对工艺误差的有效补偿，提高了低加速度灵敏度光纤水听器研制的成品率。2、采用弹性力学和有限元方法建立了拖曳线列阵光纤水听器理论设计平台，实验与理论分析结果相一致，这为优化光纤水听器的结构设计提供了有效的技术手段。3、解决了拖曳线列阵用光纤水听器制造的关键技术问题，研制出声压灵敏度为-143.0dB，加速度灵敏度低于-30dB的拖曳线列阵用光纤水听器，其加速度灵敏度优于国际上已报导的结果，并在国防水声一级计量站对其进行了性能指标测试(来源：A14BC论文网www.abclunwen.com)。

Integrated SINS/GPS navigation system, which plays key roles in the navigation field, is also studied. The design principles and implementation problems are investigated and discussed.

陀螺和加速度计的误差，圆锥效应的补偿剩余误差对长时间工作的SINS系统的性能仍有很大的影响。

To some problems of it, the design train of thought that only A/D, subdivision and counting circuit compose open-loop control system is proposed in this paper. It thoroughly renovates traditional design train of thought; Integrated subdivision circuit on the basis of AD2S90 and QA740210 is proposed and designed; Digital readout system has simple PLC function and realizes communication between it and PC; Advanced LCD technology is adopted; Using software error amendment realize dynamic compensation for error; Intelligence digital readout system by inductosyn having high accuracy and multifunction is designed.

针对目前感应同步器数显表存在的一些问题，本论文研究中提出了仅有A/D转换、细分和计数电路组成的开环控制系统的设计思路，彻底革新了传统的设计思路；提出并设计了基于AD2S90和QA740210的集成化细分电路；使数显表具有了简易PLC的功能，实现了上位机PC和数显表之间的通讯；采用了先进的LCD液晶显示技术；利用软件误差修正方法可以实现对误差的动态补偿；开发设计了精度高、功能多的智能数字化感应同步器数显表。

A set of integrated compensation programs is designed based on phase errors above mentioned.A digital integral circuit with ADE 7759 is designed for com-pensating the led phase;a phase-shifted software algorithm realized in the merging unit DSP is introduced for compensating the time-delay.

针对这2种原因产生的相位误差设计出了一套完整的补偿方法，由于Rogowski线圈产生的相位超前，设计了一种采用ADE 7759芯片的数字积分电路，可基本还原线圈引起的超前相位；由于传输过程中产生的延时，介绍了一种移相用软件算法，可对延时进行有效补偿。

Test results show the linearity of COCT is better than IEC 0.2 class limit, and is suitable to the applications, in which the voltages are higher than 220 kV, the COCT accuracy is almost not affected by the existence of neighbor phases. The temperature test result tells in the temperature range of 50 ℃ the error of COCT is less than 1%, much better than an uncompensated one 16%. And thus the effectiveness of COCT is verified.

试验结果表明：比较式光学电流互感器的线性度可达到IEC 0.2级要求；在光学电流互感器适用的220 kV以上电压等级应用场合，比较式光学电流互感器具有较好的抗干扰性能；在50 ℃温度变化范围内，普通光学电流互感器的误差变化量高达16%，而比较式光学电流互感器的误差变化仅有1%，证实了基于比较法的补偿方案的有效性。

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。

The boring bar was designed into a new structure consisting of two coaxial bars. As a result, the micro-boring bar can be made with relatively smaller outer diameter, which was suitable for boring smaller and deeper hole, even the measuring and compensating sensors have been incorporated.

但是，在镗削加工中就遇到了较大困难，因为镗杆的径向尺寸受到被镗孔尺寸的严格限制，用于误差在线检测的传感器和用于误差在线补偿驱动的传感器不能直接安装在镗杆内。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了