表面等离子体共振传感器的零角位置自动校准  

Automatic calibration for surface plasma resonance sensor at zero angle position

作　　者：琚志祥[1] 张峰[1] 钟金钢[1] 

机构地区：[1]暨南大学光电工程研究所,广州510632

出　　处：《光学技术》2008年第2期239-240,243,共3页Optical Technique

基　　金：广东省自然科学基金资助项目(5006063)

摘　　要：基于角度扫描的表面等离子体共振(SPR)传感器,装置简单、容易实现、性能稳定,其测量精度由角度测量精度决定。提出了一种基于激光自混合干涉效应的零角位置自动校准方法,主要用于角度扫描的表面等离子体共振传感器零角位置的自动校准。这种方法克服了人眼观察时用自准直法难以判断两光点是否完全重合的缺点,其精度可满足实验要求。Surface plasma resonance（SPR）sensor is based on the angle scanning,the device is simple and easy to implement,stable performance,and its measuring accuracy is decided by precision of angle measurement.A automatic calibration method at zero angle position is presented based on laser self-mixing interference effects.The method is used in the surface plasma resonance sensor of angle scanning.It can overcome shortcomings that collimation of eye observation is difficult to judge whether the two-point entirely coincidence,and meet the precision that experimental requests.

关 键 词：光学测量 表面等离子体共振 自混合干涉 零角位置自动校准 

分 类 号：TH706[机械工程—仪器科学与技术] TN911.74[机械工程—精密仪器及机械]