光学测距机的理论误差 theoretical error of optical range-finder
误差 error 平均误差 mean error; average error; 仪器误差 instrumental error; 概然误差 probable error; 行星观测上位置与计算上位置间的误差 the error of a planet; 误差极微的精密零件 precision parts with very close tolerances; 误差不超过千分之三毫米 with a tolerance of less than three-thousandths of a millimetre; 误差分析 error analysis; 误差概率 probability of error; 误差估计 error estimate; 误差函数 error function; 误差量 extent of error; 误差率 error rate
理论 theory 理论学习 study of the theory; 理论联系实际 integration of theory with practice; unite theory with practice; 理论脱离实际 theory divorced from practice; discrepancy between theory and practice; 在理论上 in terms of theory; on the theoretical plane; theortically; 理论队伍 theoretical contingent; 理论概括 theoretical generalization; framework; 理论根源 theoretical source; 理论工作 theoretical work; 理论公式 theoretical formula; 理论化 theorization; 理论基础 rationale; 理论家 theoretician; 理论价格 theoretical price; 理论科学学 theoretical science of science; 理论框架 theoretical frame; 理论轮廓 theoretical profile; 理论骗子 theoretical swindler; 理论水平 theoretical level; 理论思维 theoretical thinking; 理论素养 theoretical attainment
The existing assembly tolerance analysis and synthesis are mainly applied to the rigid assembly , and not suited to the deformable sheet metal assembly . it is necessary to find a new method that applied to the deformable sheet metal assembly . there is great meaning that we use the new method to make clear the variances sources and to improve the quality of the sheet metal assembly 现有装配偏差的分析与综合研究主要沿用了刚体装配误差理论,不适合柔性金属薄壁件,因此,寻求适用于具有柔性特点的薄板装配偏差研究方法,探明引起装配偏差的各类偏差源,对控制轿车车身等薄板装配偏差具有重要意义。
The temperature response traces of electromagnetic parameters of absorbing materials are obtained . the measurement error is analyzed in this paper . the error sources are defined according to measurement theory and the value of each error source is obtained through experiment or theory analysis 根据测试原理确定误差源,由试验或理论分析的方法确定各个误差源的值,根据测试原理通过误差理论分析得到误差计算公式,最后对测试结果进行了测试误差计算,并对其他电磁参数的材料进行了测试误差模拟计算。
First , a research is done in this paper about error correction methods of network analyzer , including the analysis of the network analyzer principle , the establishment of error model and the acquirement of standard calibration method and nonstandard calibration method . based on 12 - error module , the solt ( short + open + load + thru ) method which is standard calibration one and the slt ( short + line + thru ) method which is nonstandard calibration one are obtained 本文在分析s参数的测量误差的基础上,研究了网络分析仪误差校正方法,包括分析网络分析仪的结构、工作原理和测量方法,用已有的网络分析仪测量s参数时的误差理论建立误差模型,构造其相应的标准件校正方法和非标准件校正方法。
The calculation method of the uncertainty of the examination by error theory is introduced . the semi - automatic method to examine the digital meter by vb technique and the problems existed in the process are discussed . the program flow diagram and part of program are given 使其具有测试、数据处理、数据存贮、证书打印、查询文档等功能;介绍了检测软件主要设计过程;利用误差理论分析了误差,详细介绍了不确定度的计算方法;介绍了利用visualbasic软件技术对数字表进行半自动校验的实现方法及所应注意的问题,给出了程序校验流程图及部分程序。
Therefore , according to the project " research on the theory and technology basis of the error tracing and accuracy diagnosis of dynamic measurement " ( sponsored by doctor ' s degree foundation of the university of china ) and the project " research on the theory of dynamic measuring accuracy " ( sponsored by national natural science foundation ) , a new theory is initiated in this dissertation . it is called the theory of error tracing and accuracy - loss diagnosis of dynamic measurement system . here the research is performed systematically and deeply from the theory and the practice 因此,本文从以往研究误差理论方法的逆向出发,根据高等学校博士学科点专项科研基金项目“动态测量误差溯源与精度损失诊断的理论与技术基础研究”和国家自然科学基金项目“动态测量误差分解与溯源及不确定度研究” ,提出了一种新的理论思想,即动态测量误差溯源与精度损失诊断理论,并从理论和实践上均进行了系统而深入的研究。
Finally , different parameters in the equation of gravity center measuring are analyzed on basis of error theory and conclusion is reached the degree at which the extra angle increament caused by platform defomity influences gravity center measuring is smaler then the measuring error of angle sensor 最后根据多元函数的误差理论,详细分析了重心测试计算式中各参数对重心测试的影响,得出平台变形引起的附加角变形对重心测试的影响程度要小于角度传感器本身的测量误差的重要结论。
Transformed the six - bar guide - bar mechanism realizing linear displacement in automatic instruments into a basic rotating guide - bar mechanism , established the mathematical model of velocity approaching constant by the classical approximate synthesis theory and the modern error theory , discussedthe influences of the existent region of main mechanismic parameters on kinematic and dynamic properties , analysed the theoretical transmission ratio error , advances systematic , complete steps and methods for dimensional synthesis of this mechanism with computer aided design 将自动化仪表中实现线性输出的六杆导杆机构转化为基础转动导杆机构,应用经典的机构近似综合理论与现代的误差理论,建立了速度逼近常数的数学模型,讨论了主要机构参数存在区域及对运动、动力性能的影响,分析了传动比理论误差,提出了系统完整的计算机辅助尺度综合的步骤与方法。
Circuit theory , fundamentals of electronics technology , principle & application of microcomputer , automatic control principles , theory of error and data disposal , digital signal processing , process measurement and instrumentation , theory & application of sensor , intelligent mechanic design , metrology and measurement technology , process control and automated instrument , etc 电路理论、电子技术基础、微机原理及应用、自动控制理论a 、误差理论与数据处理、数字信号处理(自) 、过程参数检测及仪表、传感器原理及应用、智能仪表设计、计量测试技术、过程控制系统等。