thread pitch

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。

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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

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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

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Under air-conditioning condition, the thread pitch of the inner screw thread tubes was varied.

另一种是将空调工况下的换热器的等螺距内螺纹管设计成变螺距内螺纹管，以增加管内气流的扰动，提高传热系数。

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The present article is related to the analysis and discussion on tolerances of thread pitch and screwed hole in light rails and derivates the general design formula of screw pitch gauge. Consequently, the design of various screw pitch gauges for light rails can be improved.

本文对轻轨孔距及螺孔的公差进行了分析讨论，推导出孔距卡板的通用设计公式，据此可改进各种规格轻轨孔距的检查卡尺的设计。

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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

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The shell and the skeleton are connected by bolts, stress changes where bolts connect are analyzed in different thread pitch, then the best distance between bolts has been determined. Second, the suspension loop and support structure has been designed.

潜艇的外壳和骨架之间通过螺栓连接起来，分析了不同螺栓间距下螺栓连接处的应力变化情况，确定了螺栓连接时的最佳间距。其次，设计了吊环和支座结构。

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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

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When P exceeded 0.8 mm, the response curve curvature of maximum EQV stresses in jaw bone and in implant to P was ranged from-1 to 1.Conclusion Stresses in cancellous bone are more sensitive to thread pitch than in cortical bone.

在各种加载情况下，当变量P大于0.8mm时，对颌骨及种植体的EQV应力峰值响应曲线曲率位于-1和1之间。

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A new software-based method for flexible thread pitch error compensation is proposed, considering the traditional equi-thread pitch error compensation and the usage of the CNC machine tools.

将传统的等螺距误差补偿与机床使用情况相结合，提出并采用软件方法实现弹性螺距误差补偿。

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The optimal design of thread pitch is discussed based on subjected optimal method& internal penalty function method and Matlab platform.

采用约束优化方法&内点惩罚函数法，基于Matlab平台，对螺纹螺距进行了优化设计。

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For the different specifications of the fine pitch thread machining of parts, the method commonly used by re-programming.

对于不同规格的小螺距螺纹零件的数控加工，普遍采用重新编程的方法。

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Methods Finite element models of segment jaw bone with a V-shaped thread implant were created. The thread pitch ( P) was set from 0.5 mm to 1.6 mm. The maximum Equivalent stresses ( EQV stresses) in jaw bone and in implant were evaluated.

方法建立了包含圆柱状V形螺纹种植体的颌骨骨块三维有限元模型，设定螺纹螺距（P）范围为0.5～1.6mm，观察P变化对颌骨和种植体Equivalen（tEQV）应力峰值的影响。

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Optimized Thread Pitch Design and Stress Analysis of the Cylinder Screwed Dental Implant

螺纹种植体螺距的优化设计和应力分析

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Thread pitch exceed 0.8 mm should be the optimal design in a cylinder implant, but oversized pitch should be avoided too.

圆柱状螺纹种植体螺距最佳设计应不小于0.8mm，但同时应避免过大的螺距。

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A Optimized Formula of the Thread Pitch of the Rotary Screw Conveyors

螺旋输送机螺距优化公式推导

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The equations for thread taper, thread pitch, thread angle and height of thread can be derived on the base of fitted lines, which are accurate enough to meet the needs of industrial measurement.

该方法可测量螺纹的锥度、螺距、螺纹夹角和螺纹高度，测量精度可以满足工业测量要求。

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The Precision Measurement of Screw Camber Varying with Pitch Pushing for Precision PRECISION STEEL TUBES Thread Milling

变螺距螺纹曲面的精密测量

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Proper variate thread pitch techniques can be adopted to improve the distributions of detention forces, so as to strengthen casing strings'loadsupporting capability.

采用适当的变螺距工艺可使扣牙力分布得以改善，从而提高套管柱承载能力。

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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

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In order to analyse the relation of magnetic field distribution out of the axis of a loose helical current with the thread pitch, ratio of length to wide and seat in tube, the method of numerical simulation is adopted.

应用数值模拟方法，分析了疏松型超导螺线管电流轴线外的磁场与螺距、长宽比、管内位置的变化关系。

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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

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Compression Cancellous Bone Screw with both ends thread is a Variable pitch screw designed tO provide rigid' fixation of cancellous bone fracture.

双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距，无螺帽。

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The relationship between the screwing length of screw thread and the pitch error, screw linearity error, screw precision and screw tolerance is discussed to explain how to select the screwing length of screw thread in actual applications.

对螺纹旋合长度与螺距误差、螺纹直线度误差、螺纹精度及螺纹公差的相关联系进行分析，说明螺纹旋合长度在实际中的选择应用。

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The results showed: three does of LD laser affected the filaments morphology, the length of filament and thread pitch and helix numbers were variety compare to initial strain.

结果表明：三个辐照时间都对藻丝形态产生影响，使藻丝长、螺旋数、螺旋长发生变化；

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The paper discussed a photoelectric vision detecting system, which is used to measure the thread pitch of screw on-line.

机器视觉检测系统具有非接触、实时、在线、精度高等特点，近年来得到了迅速的发展和广泛的运用。

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