Analysis of 360° Prism Safety Monitoring Positioning Accuracy and Method of Constant Measurement
360° prism can measure the signal incident from any direction in the horizontal direction,and the automatic measurement system composed of measuring robot is widely used in the field of engineering safety monitoring.Combined with the geometric structure characteristics and performance indicators of 360° prism,through the test data,this paper analyzes in detail the variation law of the horizontal angle,vertical angle and distance of the same incident light in different deflection directions of 360° prism,as well as the influence law on the plane and elevation measurement accuracy.Based on the analysis of the positioning accuracy of 360° prism,the constant of 360° prism is calculated.The experimental results show that the maximum deviation of 360° prism plane point position is less than 1.0mm,and the mean square error of point position measurement is better than 0.5 mm;The periodic variation of elevation measurement value is 120°,the maximum deviation is less than 2.6mm,and the mean square error of elevation measurement is better than 2.0mm;The measured constant of 360° prism is 23.1mm.The experimental results provide a reference for the application range and correct use of 360° prisms,and can better play the role of 360° prisms in engineering.
万方数据
维普
