长度测量

F-P干涉仪在长度测量领域的应用

Applications of Fabry Perot interferometer in length measurement

本工作为使用3.39μm波段双线He-Ne激光的大长度测量方案提供了实验依据。

This work provides experimental basis for the large length measurement scheme employing 3.39 μ m dual-line He-Ne laser .

提示应用rootzx根管长度测量仪所得到的工作长度比X线法准确。

It means the root canal length measured by Root ZX is more accurate than by radio-graphs .

质子、氚和α在Ar和Kr中的径迹长度测量与计算

The measurement and calculation of track length for particles p , T and α in AR and Kr

目的评价森田rootzx根管长度测量仪临床应用价值。

Objective To assess the value of ROOT ZX canal length meter ( ROOT ZX ) in clinical practice .

目的用口腔数字成像系统（ODIS）检验根管长度测量仪在测定前牙根管工作长度时的准确性及实用性。

Objective To test the accuracy of electronic apex locator in determining working length of anterior teeth using ODIS system .

生产实践证明：使用新的测量方法，提高了焊管的长度测量精度，其值可达±1mm。

The production practice shows an improved length accuracy of ± 1 mm with this method .

实验前及预定时间进行检影验光及超声眼轴长度测量，RT-PCR检测巩膜MMP-2mRNA表达水平。

Before experiment at experimental point , refractive state and axial length were determined with retinoscopy and A-scan ultrasonography respectively . The expression of MMP-2 mRNA was detected by RT-PCR .

激光二极管（LD）抽运的固体激光器可用于光学计量、长度测量、相干光通信、激光雷达等方面，高精度应用要求激光器的频率稳定。

Diode pumped solid state laser can be used to optical metrology , length measurements , coherent optics communication and laser radar , the high precision applications need the laser frequency stabilization .

阐述了E-BIC的基本原理和计算方法，并利用EBIC对一组GaP绿色LED用LPE样片进行少子扩散长度测量。

It is expounded that basic principle and calculate method , and diffuse length of few carrier running electron for GaP LPE sample flat by use of EBIC is determined .

该系统长度测量标准差为36μm，角度测量与坐标测量机（CMM）测量结果的相对误差0.2%.给出了某V型面三维实测的数据重建结果。

The sensor 's standard deviation in length measurement is 36 ? μ m , and the relative error of angular measurement is ( 0.2 % ) compared with the CMM ( coordinate measuring machine ) .

LVDT精密长度测量仪广泛应用于工业、农业、医疗、军事等很多领域。

LVDT-based Precision Displacement Measurement is widely used in industry , agriculture , medical treatment , military , and many other fields .

利用全光纤干涉系统，提出了光纤长度测量的新方法，与传统的光纤长度测量方法&时域反射（OTDR）法相比，该方法完全消除了OTDR的盲区。

Using the all-fiber interferometer , a novel method of optic fiber length measurement is proposed in this paper and the all fiber interferometer for fiber length measurement is constructed .

设计并建立了IG541管道配件当量长度测量系统和IG541气体灭火实验系统。

IG541 fire suppression laboratory and a equivalent length of pipe fittings measuring system were established .

长度测量的方法是首先采用Zernike矩进行边缘检测，再人工选取感兴趣区域，并通过最小二乘法拟合得到两边的直线方程，最后通过平行线间距离确定长度。

The way of length measuring is firstly to detect edge based on Zernike moment method , and then get the regions of interest through mouse , and get linear equation through least squares fitting , after that get the length through calculating the distances between the parallel .

结论根管长度测量仪测定前牙根管长度比较满意，ODIS可对工作长度测定作有效的补充。

Conclusion The electronic apex locator could be successfully used in determining working length of anterior teeth , and the ODIS system could be the supplementary method of electronic working length measurement .

本文介绍了SWC-1型数字式纬编线圈长度测量仪的设计思想、工作原理等。该仪器能用在多种单、双面圆纬编针织机上，能直观、迅速、准确地测量并显示织物的线圈长度。

Are discussed the design concept and operating principles of digital stitch-length meter SWC-1 , which can be used on both single and double jersey machines , giving a visual , instant and accurate display of stitch length .

PTB精密干涉仪长度测量不确定度很小，其单值性范围约0.6mm，因此其近似的长度估算足以满足超精密长度测量的要求。

Considering a measurement example at PTB ′ s Precision Interferometer , the uncertainty of the individual length measurement is small enough so that the range of unambiguity is about 0.6 mm , i.e. a rough estimate of the length is sufficient for ultra precise length measurements .

型材辊压生产线中长度测量与控制

Measurement and Control of Length in Rolling Production Line of Shapes

根管长度测量仪在根管充填中的疗效评价

Evaluate on Root Canal Filling Treatment Result by Root Length Surveyor

一种便携式长度测量系统的硬件设计

The Hardware Design for a Kind of Portable Length Measuring System

一种新颖的宝塔线长度测量控制仪

New Instrument for Measuring the Length of the Thread on Cone

固体自动扫描图象传感器在长度测量中的应用

An application of solid-state self scanning image sensors in dimensional measurement

基于数字图像处理的口腔根管长度测量方法研究

Apical positioning and root canal measurement based on digital image processing

石油钢管长度测量系统优化设计及误差分析

Optimization and Error Analysis for Petroleum Steel Pipe Length Measuring System

GB/T13387-1992电子材料晶片参考面长度测量方法

Test method for measuring flat length on slices of electronic materials

基于锁模光纤激光器的光纤长度测量方法的研究

Research on Measurement of Fiber Length Based on Mode-Locked Fiber Laser

光纤位移法进行微小长度测量的相关实验研究

Optical Fiber Displacement Sensor Used in Micro - displacement Measuring Relevant Experiments

一种新型的牙齿根管长度测量仪

A new Instrument for the Length of Teeth Root Cannal

成人留置鼻胃管长度测量方法的探讨

Approach on the Method of Length Measurement of Adult Indwelling Nasal-stomach Tube