On the basis of machine vision, a the noncontact detection method was put forward to measure the geometrical size and shapeposition error of the ball nut. 提出了基于机器视觉检测技术的滚珠丝杠副螺母的非接触测量方法。
Application of Comprehensive Size Error Control Method to Bus and Coach Production 尺寸误差综合控制法在客车生产中的应用
Size error in ROM image data received from server. 服务器返回了错误的ROM镜像容量数据。
The utility model can auto position the sawing direction to be processed on a work piece, thereby decreasing the processed shape and size error, and greatly increasing the yield rate of the products. 它可以自动定位标明工件上将要加工锯切的方向,从而减小加工的形状和尺寸误差,大大提高产品的成品率;
Application of laser sensor in measurement of size error for large-sized shaft parts 激光传感器在大尺寸轴类零件尺寸误差测量中的应用
The paper gives an analysis on the source and size of measurement error of gauge block by relative measuring method. 分析了相对测量法量块测量过程中误差的来源和大小。
A method to control the size error of the rectangular conductor for magnet wires and its application 电磁线用扁导线偏差等精度控制原理及应用
An intelligent measurement system to measure the size and error of the shape and the position of the axis is developed. The precision and efficiency of the measurement are improved. 文中开发的智能检测系统可完成轴颈尺寸和形位误差的检测,测量系统分辨率达1μm,提高了检测精度和效率。
The Effect of Size Error on Drying Quality in Sawing Small Diameter Manchurian Ash Wood 小径木水曲柳锯材加工的尺寸误差对干燥质量的影响
The non-touch measurement on size error and shape error within one system is realized and the reasons of measurement error are analyzed. 在同一系统中实现了尺寸及形状误差的非接触测量,分析了测量误差的原因。
The mathematical models of selecting geometrical parameter tolerances are built by researching the relationships between the size error, circularity deviation and surface roughness in the external cylindrical grinding and considering the function, machining and cost of machine parts. 本文从机械精加工中常用的外圆磨削着手,寻求圆柱形零件的尺寸误差、圆度误差、表面粗糙度之间的内在联系;
In this paper, estimating law for mineral content, simple proof of the law and determining lowest sample size and error range in measure and statistics are discussed. The law is used in point measure method with microscope to mass ore. 本文主要论述块状矿石显微镜下矿物含量点测法的估计定律,以及此定律的简要证明、测量统计中最低限度样本容量的确定及误差范围。
The basic method of experiment design is mainly about the measurement for the general shaft and hole parts. The reason of the size error about general shaft and hole parts is analyzed. The method A and method B about measurement uncertainty of measuring results are represented. 主要研究一般轴孔类零件测量的实验系统设计的基本方法,分析轴孔类零件测量误差产生的原因,给出测量结果不确定度的A类、B类评定方法。
The Exploration for Making Size Error Standard in Internal Measure-Hand of Number Showing Calipers 对制定数显卡尺内量爪尺寸偏差标准的探讨
It has strong rigidity and high locating accuracy, simultaneously, it can compensate the axial size error accused by the centre hole size of the shaft. 该顶尖刚性强、定位精度高,能补偿由于被加工轴的中心孔误差所引起的轴向尺寸误差。
After that, several main factors that affect the performance of power control, estimation precision of SIR, step size, error rate of TPC decision and time delay of TPC etc are discussed, and the simulation curves and analysis of the first three cases are provided. 讨论了影响功率控制技术性能的几个关键因素:信扰比(SIR)估计精度、步长选择、功控比特传输错误及功控时延等,并给出了仿真曲线和结果分析。
An investigation on internal size error of measurement concerning dual measuring points single-coordinate measuring instrument 关于双测点单坐标测量仪内尺寸测量误差的研究
The step effect and small feature loss are important size error resources in Rapid Prototyping. 由于切片层有一定厚度,台阶效应和小特征遗失等是快速成形技术重要尺寸误差源。针对LOM型快速成形中切片层厚度不变的特点,提出三种提高其制件精度的方法。
The influence of installing height of CNC lathe tool on radical size error 数控车床车刀的安装高度对径向尺寸误差的影响
The size error of internal measure-hand in number-showing calipers and some factors to affect its measure precision were analysed and some suggestions were put forward to perfect further standard and checking procedures. 对数显卡尺内测量爪尺寸偏差及影响测量精度诸因素进行了分析,对完善标准和检定规程提出建议。
An explicit high-order Runge-Kutta method to solve the motion differential equations for accurate cloth simulation is presented. By use of embedded cash-karp runge-kutta formula, the algorithm is further optimized on the side of auto-adjustment for step size and error control. 针对具有高精度要求的织物动态仿真,提出利用显式Runge-Kutta高阶方法解决仿真过程中运动微分方程的求解问题,并采用内嵌的Cash-Karp计算格式,从自动调整步长和控制精度两方面优化算法。
Size Error Analysis of Weld Defect by Routine Ultrasonic Examination 常规超声波焊缝缺陷尺寸定量检测的误差分析
Size Error and Economic Tolerance of Cold Stamping 冷冲压件尺寸误差与尺寸经济精度
To make use of dimension chain principle in comprehensive and accumulated analysis of element parts size and error is an important composition part for quality analysis in machine building. 利用尺寸链原理对机器零部件尺寸及其误差进行综合与累积,是机器制造中质量分析的一个重要组成部分。
Simulation results show that relationship between single rod size error and the dead point position error of the slider is linear, of which the greatest impact is crank length, impact factor is 0.021. 结果表明,单个杆件尺寸误差与滑块下死点的位置误差成线性关系,其中曲柄长度影响最大,影响系数为0.021,滑块下死点的位置误差随运动副间隙的增大而增大。
For the dimensional precision information, this chapter puts forward the method based on oriented bounding box to extract the dimension value fast and one-time, then the size error value is obtained by comparison with the ideal value. 对于尺寸精度信息,提出了基于方向包围盒的方法进行尺寸值的一次性快速提取,通过与理想值的比较得到尺寸误差值。
The simulation include two aspects, one is the size error of linkage, the other one is pair clearances. 分析主要包括杆件尺寸误差和运动副间隙两方面。
The cam angle error, cam-manufacturing error, in addition, mechanism component size error except the cam is considered as the main error factors. Used errors sources as variable parameters in the model, the parameterized ADAMS dynamic model of the new indexing cam is set up. 视凸轮的角度误差、凸轮制造误差、机构除凸轮外的构件尺寸误差为主要误差影响因素,参数化误差源,建立了机构参数化动力学模型。
Due to the faulty of micromachining, there always exist errors between the actual parameters and that designed, for instances, the size error of support beams, the gap error of comb fingers and the center offset of proof-mass. 由于微加工工艺的不完善,微加速度计的实际参数与设计参数之间总是存在误差,比如支撑梁尺寸误差、梳齿间隙误差、检测质量块质心偏移等。