학술논문

激光计米器测量精度影响因素分析 / Analyzing Influential Factors on the Measurement Accuracy of Laser Meters
Document Type
Academic Journal
Source
计量科学与技术 / Metrology Science and Technology. 67(12):51-58
Subject
计量学
激光计米器
测量精度
夹角
间隔距离
不确定度
metrology
laser meter
measurement accuracy
angle of incidence
spacing distance
uncertainty
Language
Chinese
ISSN
2096-9015
Abstract
为了分析激光计米器测量精度的影响因素,确定了运动速度、测量线与测量面法线的夹角、激光发射端与测量面的间隔距离三个影响因素.运用控制变量法,每次只改变一个因素保持另两个因素不变,通过对比分析激光计米器测距的示值误差来得到每个因素对测量精度的影响.通过实验分析得知,测量线与测量面法线间的夹角是最重要的影响因素,激光发射端与测量面的间隔距离是次要的影响因素,需要严格控制这两个因素才可将误差控制在仪器标称精度以内;运动速度以及运动状态对测量精度造成的影响比较小,不是主要影响因素.因此在激光计米器的使用以及对该仪器进行检定校准时应特别注意安置时的角度以及与测量面的间隔距离,以便获得较高的测量精度.
This study analyzes factors affecting the measurement accuracy of laser meters,identifying three key factors:the movement speed,the angle of incidence between the measurement line and the measurement surface's normal,and the spacing distance between the laser transmitter and the measurement surface.Employing a controlled variable method,one factor is varied while the others remain constant,and the impact of each factor on measurement accuracy is determined by comparing and analyzing the laser meter's distance measurement indication error.Experimental analysis reveals that the angle of incidence between the measurement line and the normal of the measurement surface is the primary influential factor,followed by the distance between the laser transmitter and the measurement surface,both requiring strict control to maintain error within the instrument's nominal accuracy.The effect of movement speed and state on accuracy is minimal,thus not a primary factor.Consequently,special attention should be given to the placement angle and distance from the measurement surface when using and calibrating the laser meter to achieve high measurement accuracy.