弦高

该定标块的弦高计算值通过测量系统的各滤波档时必定被衰减。我们可以利用这一弦高值衰减的特点检定其滤波特性。

The calculating value of the chord height of the calibration standard be-ing passed through filtering stages of the measuring system will be attenuated .

在比较弦高比阈值滤波、均值滤波和中值滤波的基础上，提出一种数据平滑的方法。

This paper introduces a new data smoothing method based on the comparison among chord height ratio threshold filtering , average filtering and median filtering .

针对天线罩内廓型面的特点，采用等弦高法获取测量型值点，并应用基于最小二乘法的双三次B样条方法重构出测量及加工后的内廓型面。

The inner profiles after measuring and grinding are reconstructed by the bicubic B spline based on the least square method .

通过对虚拟工件模型精度和建模效率的研究，提出在STL文件生成时要对弦高控制参数进行优化，并通过实际的分析对比提出了兼顾精度与效率的工件模型优化措施。

The measure of optimizing virtual workpiece model which considered precision and efficiency is proposed by actual contrast .

随着弦高的减小，翘曲现象减轻，渐呈准直线。

The warped phenomenon is mitigated when the chordal height decreases .

介绍一种通过测量柱体横截面的一段弦高，来换算出柱体直径的方法。

A method of measuring diameter of column through measuring the chord high was introduced .

数控加工中定曲线方程轮廓的等弦高误差拟合算法研究

An algorithm of equal chord deviation fitting in NC contour machining for an analytical formulation given curve

主流线弦高与弦长之间的调整符合弓形参数间的一般函数关系；

The regulation between the string height and the string length of the mainstream line accords with a function relationship between the bow parameters .

为了避开冲突点，用遗传算法计算新管线需弯曲的劣弧的最优弦高和弦；

In order to avoid the collided dot , use genetic algorithm to calculate the best height and radiu of inferior arc of the new pipeline ;

弦高法和三点法的计算原理有所不同，但痕迹的处理方法是一致的。

The calculation principles of " hypotenuse-height method " and " three-point method " are different , but the methods of dealing with the traces are identical .

针对扫描线类型数据点云，提出了利用角度弦高联合准则提取特征点，最终获得特征线框的特征提取方法；

For the scan line type point cloud , this paper puts forward a feature extraction method , which extracts characteristic points and obtains closed characteristic frame by using angle-chord principle ;