The weighted least-squares formulae for additive constant and multiplicative constant in the verification of Electro-optical Distance Measurement are deduced.
对光电测距检定中带权加常数与乘常数的最小二乘公式进行了推导,通过实例说明在基线比较法加常数、乘常数的计算中,带权观测值与不带权观测值对加常数、乘常数的评估有影响,尤其对乘常数的计算结果影响很大,因此建议检定规程中对此进行补充。
The paper expounds the speedy, precise and safe method to proceed the elevation transference at the shaft bottom using electro-optical distance measurement in the constructional surveying of nuderground projects.
该文论述了用光电测距在地下工程施工测量中迅速、精确、安全地进行竖井井底高程传递的方法，并对其精度及应用进行了分析。
The thesis introduces precise formula of horizontal distance of electro-optical distance measurement.
介绍了光电测距中平距归算的严密公式,分析了棱镜准直误差对光电测距的影响,并就全站仪仪器自身误差对光电测距的影响进行了阐述,进而得到了系统的理论依据。
The application of the circuit in electronic distance measurement was also presented.
阐述了精密数字测相的方法 ,给出了一个自动数字相位计电路及其在精密光电测距中的应用 。
The paper offers a new signal source system, which is used in a short medium range phase EDM (Electronic Distance Measurement) system.
文中介绍了一种新颖的中短程相位式光电测距系统的信号源系统。
THE RATIONAL SELECTION METHOD ON FORMULAS OF CALCULATING ATMOSPHERIC REFRACTIVE INDEX IN METEOROLOGICAL CORRECTION FOR EDM;
光电测距气象改正中大气折射率计算公式的合理选型
The meteorological representative error is the main source of EDM error,as well as the main obstruct to realize the nominal accuracy of the precision electronic tachometer also.
气象代表性误差是光电测距的主要误差来源,也是实现精密全站仪标称精度的主要障碍之一。
THE APPRAISAL ON SHORT DISTANCE MEASUREMENT ACCURACY OF EDM BY TEST;
光电测距仪短距测量精度的实验性评价
Ways to Obtain Constants of Distance Surveying Part of the ETS (Electronic Total Station) or EDM (Electro-optical Distance Meter);
电子全站仪(或光电测距仪)测距部参数的获知方法
With the expansion of the scope application of EDM, there is a more and more accurate demand on EDM, a lot of work requires precision of EDM to achieve sub-millimeter level.
就此问题,本文对测距仪分辨力检测与空中基线的精确测定进行了研究,主要包括以下研究工作:(1)对光电测距仪检测方法的现状进行研究,提出设计研究一套测距仪分辨力自动检测系统的设想,从运动系统解决的问题、系统设计总体要求以及系统的总体构成与工作原理等方面对分辨力自动检测系统进行总体概述,同时对系统方案的可行性进行分析。
Specifications for long range electro-optical distance measurement
GB12526-1990远程光电测距规范
Short range electro-optic distance-measuring instrument
GB/T14267-1993短程光电测距仪
A High Accuracy Electro-optical Range Measurement System at Approaching Distance
近距离高准确度光电测距技术的研究
A Design of the Signal Source System of Phase-EDM
相位式光电测距仪的信号源系统设计
Establishment Method of Longer Laboratory Baselines for Verificating EDMs
光电测距仪室内长基线建立方法研究
A STUDY ON METHODS AND INSTRUMENTS OF CALIBRATING FINE FREQUENCY OF EDM
光电测距仪精测尺频率校准方法与仪器的研究
Reasonable Accuracy of Angular Measure and Linear Measure in Electro-optical Distance Traverses;
光电测距导线中测角和量边的合理精度
ON WEIGHTED ADDITIVE CONSTANT AND MULTIPLICATION CONSTANT IN VERIFICATION OF ELECTRO-OPTICAL DISTANCE MEASUREMENT
光电测距检定中带权加常数与乘常数分析
electronic distance-meter theodolite
电子测距光学经纬仪
curacy of ranging for laser range finder
激光测距机测距准确度
precision of ranging for laser range finder
激光测距机测距精度
Development of Laser Ranger Finder System of Contact Wire for Power Supply in Railway
牵引供电接触网激光测距系统的开发
The Application of Portable Laser Ranger in Distance Measurement of Overhead Power Lines
便携式激光测距仪在架空电力线路测距中的应用
Research on gap of glass plates using optoelectronic detection technique
基于光电检测技术的玻璃间距测量方法的研究
The Application of FPGA in Test Instrument of Laser Ranger Circuits
FPGA在激光测距机电路检测系统中的应用
Temperature control system supplied by pulse-drive current for laser range finder
激光测距仪的脉冲电流供电温度控制系统
short-range electronic distance meter
短距离电磁波测距仪
optical automatic ranging
光学自动测距计光学自动测距仪