pitch diameter

Analysis of slope error in measurement of pitch diameter of metric trapezoidal thread plus gauge

公制梯形螺纹塞规中径测量斜率误差分析

Measure and Indeterminate Analysis on Pitch Diameter of Tapered Thread

圆锥螺纹中径的测量及不确定度分析

Lateral Mass Method with Side Trapezoid Thread Ring Pitch Diameter Evaluation of Uncertainty in Measurement

侧规法测梯形螺纹环规中径测量结果的不确定度评定

Study on Measurement of Pitch Diameter of Internal Thread by Three& ball Method

关于内螺纹中径三球量法的探讨

Evaluation of Uncertainty in Pitch Diameter Measurements of Thread Plug Gauge Using Tri-needle Method The Method for Measuring Diameter Size of Ring with Universal Measuring Microscope

三针法测量螺纹塞规中径的不确定度评定用万能工具显微镜测量环规内径尺寸的方法

According to measure request of screw thread, four main characters-major diameter, screw pitch, angle of thread and simple pitch diameter are chosen to be measuring objects of computer vision.

根据螺纹检测要求，选择螺纹大径、螺距、牙型角和中径四个主要参数作为计算机视觉测量目标。

There are many ways to measure base-level pitch diameter of cone-shaped thread.

检测圆锥管螺纹基面中径的方法有很多,但测量过程复杂.

An Optimal Approximate Algorithm of Complete Differential and Computer Graphic Simulation for Screw Thread Pitch Diameter Equivalent

螺纹中径当量的全微分优化逼近算法及图形仿真

By combining the traditional three ball measuring principle for thread with image measuring technology, a kind of 3-D automatic measuring system based on CCD image for pitch diameter parameters of taper thread is developed, and errors of the image-based three ball method are analyzed.

将传统的螺纹三针测量原理与图像测量技术相结合，设计开发了一种基于CCD图像的锥螺纹中径参数三维自动测量系统，并对图像三针测量法进行了误差分析。

Image-based Three Ball Method for Measuring Pitch Diameter of Taper Thread

测量锥螺纹中径的图像三针法

Based on relevant operation results, it is concluded that under the precondition that all the thread element data like taper and pitch remain consistent, it is feasible to substitute the pitch diameter gauge and the ovality gauge for the thread work gauge.

结合生产实例分析指出，在锥度、螺距等螺纹单项参数合格稳定的情况下，用中径和椭圆度量规替代螺纹工作量规是可行的。

This paper describes a new method and device for measuring helical line, pitch diameter, taper and half-angle of thread of petroleum thread gauges.

本文介绍一种测量石油螺纹量规的螺旋线、中径、锥度和牙形半角的新方法及装置。