The former searches continuous surface patches with geometric similarity, by using the mean-square deviation of vector contained angle of the least-square fitting planar method. 前者通过最小二乘拟合平面法矢量夹角的均方差值来搜索具有几何相似特性的连续曲面片。
Our factory is one of the top enterprises which specializes in producing angle fitting in Guangdong. 本厂是粤东地区生产弯头的龙头企业之一,可定制各型号规格之弯头及配件。
A method is investigated to analyze the physical feature of a drop, such as surface tension, contact angle and volume through fitting contour of the drop picture. 本文研究了利用照相机捕捉到的液滴灰度图像,分析求取液滴的表面张力、接触角、体积等物理参数的方法。
An image processing-based method is proposed to measure the repose angle by image sampling, region segmentation, edge detection and linear fitting. 休止角是回转率中描述物料运动特征的重要参数,提出一种基于图像处理技术的物料休止角测量方法。
I found it convenient to use a right angle reducing fitting, followed by a gray threaded pipe, and a gray hose barb that threads onto the gray pipe. 我发现它方便使用直角减少拟合,其次是一个灰色螺纹管,和一个灰色软管烧烤认为线程上的灰色管道。
A novel method for perturbed trajectory prediction of post-fault rotor angle is presented in this paper, which is based on phasor measurement unit ( PMU) measurements and trigonometric function curve fitting technique. 基于相量测量单元(PMU)上传的实时功角数据,应用曲线拟合理论,提出了一种电力系统事故后功角轨迹快速预测的新方法。
Optimization of the placement of the gate of an ABS angle fitting based on CAE Technology 基于CAE技术优化ABS弯头管件的浇口位置
The continuum functional relationships among system efficiency, blade angle, static head and flow rate of pumps are established based on the performance curve surface fitting method. 本文基于曲面拟合构造了装置效率、叶片角度与装置扬程和流量的连续函数关系,可以迅速准确地确定某一装置扬程和流量所对应的装置效率等参数。
In this paper, the formula of a exact solution for the fracture angle of the fragile fracture of compound crack is got by use of the fitting square method, which is determined by the theory of strain energy density factor. 本文采用配方法,导出了采用应变能密度因子理论求解复合型裂纹脆性断裂角的精确公式。
The range error and drift error are calculated and analysed when the fitting is performed on different firing angle, so that a reasonable fitting region is chosen to decide the firing angle. 对在不同射角下符合时,由射表误差源造成的射程误差和偏流误差进行了计算与分析,论述了符合射角选择的合理区域。
In order to distinguish the magnetizing inrush current and reduce fitting error, the angle with the maximal differential current is selected as fitting angle. 为了更能体现励磁涌流的特征和减少拟合波形幅值的计算误差,建议取拟合角度为差动电流峰值时的角度最为合理。
For the variable inclination angle, inclusion of the second order is enough to achieve 3 nm fitting precision, meanwhile, the fourth order is still needed for the variable measured displacement. 对于转角的拟合只需2阶,同时位移测量值只需4阶的多项式进行拟合即可使输出位移达到3nm的精度。
The third order polynomial of torque-torsional angle equations were used for fitting the experimental results to obtain the torsional rigidity formula. 建立了对转矩转角实验曲线采用3阶多项式拟合,然后求导得到刚度公式的方法。
By analyzing phase angle of meshing geometric drawing position, the theoretical formula of cycloid gear actual operating space of cycloid planetary gear speed reducer is driven, at the same time, fitting a curve, and discussing engineering significance of function curve to combine reality. 通过分析啮合相位角几何图形的位置,推导出摆线针轮行星减速器中摆线轮实际工作范围的理论公式,画出了啮合相位角函数的拟合曲线,并结合实际讨论其函数曲线的工程意义。
Therefore researching space resource from the angle of resource science and fitting space resource science into resource science have become a tendency. 因此,从资源学的角度研究空间资源问题,将空间资源学纳入到资源学的学科体系已成为大势所趋。
The larger the inclination angle is, the larger the nonlinear error and the temperature drift error will be. ( 3) The compensation method of measurement error for the inclinometer on the basis of polynomial fitting was researched. 倾斜角度越大,非线性误差和温漂误差就越大。(3)研究了基于多项式拟合的倾角仪测量误差补偿方法。
One of the important parameter of geometric migration is three-dimensional strata and its true angle. These parameters can be acquired with 3-D curved-surface fitting techniques. 做几何偏移的一个重要参数是三维地层(同相轴)的产状和真倾角,采用三维曲面拟合技术获取。
The relationship between the output of the angle measuring sensor and the measured angle was non-linearity, so a curve fitting method was researched. This method improved the linearity of the measuring system. 针对倾角传感器的输出值与被测角度之间的特性曲线非线性的情况,对拟合方法进行了研究,提高了测量系统的线性度。
Evaluate angle fitting algorithm using the standard template. And then measure the actual saw-teeth angles repeatedly. 通过标准模板对角度拟合算法进行评估,并且对实际锯齿角度进行重复测量。
The curves between the speed, tilt angle and the error are derived by multivariable fitting. 用多变量拟合的方法得到了速度和倾角与误差之间的拟合曲线。