基于CCD的激光三角位移法测液位的性能研究  

Research on the Performance of Measuring Liquid Level by Laser Triangular Displacement Method Based on CCD

作　　者：刘薇娜[1] 谢国红[1] 

机构地区：[1]长春理工大学机电工程学院,吉林长春130028

出　　处：《自动化仪表》2010年第7期19-21,共3页Process Automation Instrumentation

摘　　要：针对国内石油化工等行业中液位测量方法存在测量精度差、结构复杂及抗干扰能力弱等不足,利用激光位移传感器测量速度快、精度高、抗干扰能力强等优点,设计了一种新型的直射式激光液位测量系统。试验结果验证了该系统在液位精确测量中应用的正确性和可行性,提高了测量的稳定性和抗干扰性,激光三角位移法必将成为精确液位测量的发展方向。To overcome the demerits of the liquid level measurement in domestic petrochemical industries,e.g.low measuring accuracy,complex structure and weak anti-interference capability,etc.,the novel direct laser level measuring system has been designed by adopting laser displacement sensor because the sensor features fast speed of measurement,high accuracy and high capability of anti-interference.The result of tests verifies the correctness and feasibility of this system for enhancing the stability and anti-interference of measurement,it also indicates that the method of laser triangulation displacement shall become the developing trend for precise level measurement.

关 键 词：液位 传感器 CCD 测量误差 数据拟合 激光三角测量 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]