摘要
微棱镜反光膜内部角锥结构的角度精度是影响反光材料反光强度变化的主要因素,目前国内微棱镜反光膜生产商主要采用常规共聚焦显微镜图像识别的方法测量微棱镜的角度误差,但此方法检测效率过低,很难达到实际的测量需求。为有效克服上述检测方法的缺点,建立了微棱镜角度误差光学测量的数学模型,并提出了一套基于自准直仪的光学测量系统。在测量实验前对测量装置进行灵敏度标定实验与稳定性测量实验,实验数据表明该测量系统精度较高,可用于微棱镜角度误差的测量。最后利用该测量系统可快速实现对微棱镜反光阵列角度误差的测量,试验表明,相比于常规共聚焦显微镜图像识别的测量方法,本测量系统测量效率更高,可以满足实际生产中的测量要求。
The angular accuracy of the inner corner structure of the microprism reflective film is the main factor that affects the change of the reflective intensity of the reflective material.At present,domestic microprism reflective film manufacturers mainly use the conventional confocal microscope image recognition method to measure the angle error of the microprism,but the detection efficiency of this method is too low,which makes it difficult to meet the actual measurement requirements.In order to overcome the shortcomings of the above method,a mathematical model for the optical measurement of the angle error of the microprism is established,and an optical measurement system based on the autocollimator is proposed.Before the measurement experiment,the sensitivity calibration experiment and stability measurement experiment are carried out on the measurement device.The experimental data showed that the measurement system has high accuracy and can be used to measure the angle error of the microprism.Finally,the measurement system is used to realize the fast measurement of the angle error of the microprism reflective array.Experiments show that,compared with the conventional confocal microscope image recognition method,the proposed measurement system has higher measurement efficiency,and can meet the measurement requirements in actual production.
作者
郗鸿振
娄志峰
钱钧
任伟鹏
张忠宁
CHI Hongzhen;LOU Zhifeng;QIAN Jun;REN Weipeng;ZHANG Zhongning
出处
《现代机械》
2021年第6期1-5,共5页
Modern Machinery
关键词
角度误差
模型
测量
精度
angle error
model
measurement
accuracy
