基于CCD的激光非接触式钢板测厚方法研究  

Study on Laser Non-contact Thickness Measurement Method for Cold-roll Steel Sheets Based on Linear CCD

作　　者：郭媛[1] 王娜[1] 

机构地区：[1]齐齐哈尔大学计算机与控制工程学院,黑龙江齐齐哈尔161006

出　　处：《仪表技术与传感器》2014年第12期68-70,共3页Instrument Technique and Sensor

基　　金：黑龙江省教育厅科研面上支持项目(12521600)

摘　　要：为提高现代钢铁企业中冷轧钢板厚度检测精度，减小测量误差，针对冷轧钢板提出了一种基于线阵CCD的非接触式双激光测厚方法。该方法可以测量钢板多个位置的厚度，同时对CCD上光斑位移的测量进行了补偿。与单激光测厚方法相比，弥补了因温度、板材材质不同及振动偏移引起的误差，测量精度大大提高，可实现非接触检测。实验证明在2～8mm厚的冷轧钢板测量范围内，测量误差在±10μm范围内，能够满足冷轧钢铁企业产品的质量检测要求，提高了企业的经济效益，降低了生产成本。In order to improve the measurement accuracy of cold-roll steel sheets and reduce the measurement errors in modern iron and steel enterprises, a method for double lasers non-contact thickness measurement of cold-roll steel sheets based on linear CCD was presented. The method can detect thickness of different spots and make compensation for the measurement of facular dis- placement on CCD. Compared with single laser method of detecting, it can compensate the errors caused by temperature, plate tex- ture and vibration. The accuracy was greatly developed and it can achieve non-contact detecting. The experiment shows that the de- tecting error for cold-roll steel sheets thickness which is between 2 to 8 mm ranges from 0 to 10 μm,which can meet the measure- ment requirements and improve the economic profits as well as reducing the cost of production.

关 键 词：测厚 线阵CCD 非接触式 激光 测量精度 误差补偿 

分 类 号：TN2[电子电信—物理电子学]