红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
2期
459-464
,共6页
位置敏感测器%数据采集%位置误差%背景杂光
位置敏感測器%數據採集%位置誤差%揹景雜光
위치민감측기%수거채집%위치오차%배경잡광
position sensing detector%data acquisition%position error%background stray light
位置敏感探测器(PSD)是一种可以探测光斑重心位置的光学传感器,具有响应速度快、位置分辨率高和处理电路简单等优点,在角度测量、位置检测等精密测量系统中具有广泛的应用.介绍了在实验室内光学平台上搭建光路,选用A823数据采集卡,并在DOS操作系统Borland C++ builder环境下编写C程序连续实时采集模拟电压信号,实现AD转换,计算光斑位置坐标并进行误差分析.实验选用瑞典SiTek公司型号为2L10_SU65_SPC02的四边形位置敏感探测器,通过误差分析得出主要结论,包括PSD存在边缘效应,室内实验影响传感器位置坐标的主要因素是自然光和日光灯,去除影响因素后精度明显提高.
位置敏感探測器(PSD)是一種可以探測光斑重心位置的光學傳感器,具有響應速度快、位置分辨率高和處理電路簡單等優點,在角度測量、位置檢測等精密測量繫統中具有廣汎的應用.介紹瞭在實驗室內光學平檯上搭建光路,選用A823數據採集卡,併在DOS操作繫統Borland C++ builder環境下編寫C程序連續實時採集模擬電壓信號,實現AD轉換,計算光斑位置坐標併進行誤差分析.實驗選用瑞典SiTek公司型號為2L10_SU65_SPC02的四邊形位置敏感探測器,通過誤差分析得齣主要結論,包括PSD存在邊緣效應,室內實驗影響傳感器位置坐標的主要因素是自然光和日光燈,去除影響因素後精度明顯提高.
위치민감탐측기(PSD)시일충가이탐측광반중심위치적광학전감기,구유향응속도쾌、위치분변솔고화처리전로간단등우점,재각도측량、위치검측등정밀측량계통중구유엄범적응용.개소료재실험실내광학평태상탑건광로,선용A823수거채집잡,병재DOS조작계통Borland C++ builder배경하편사C정서련속실시채집모의전압신호,실현AD전환,계산광반위치좌표병진행오차분석.실험선용서전SiTek공사형호위2L10_SU65_SPC02적사변형위치민감탐측기,통과오차분석득출주요결론,포괄PSD존재변연효응,실내실험영향전감기위치좌표적주요인소시자연광화일광등,거제영향인소후정도명현제고.
Position sensing detector (PSD) is an optics sensor that can detect the center of the incident light. It has the advantages of fast response, high position resolution and simple circuit, these characteristics make it a wide range of application in precision measurement such as angle and position detection. A optical experiment on a optic bench A823 was chose for data acquisition under the DOS operating system and Borland C++ builder, C program was written for a real-time transformation between analog voltage and digital voltage, then position coordinate was calculated and the error was analyzed. 2L10_SU65_SPC02 PSD used in this experiment is from Sitek corporation in Sweden, through the error analysis the main conclusions include fringe effect of PSD, the main influence about the position error are natural daylight and fluorescent light. If eliminate influence factor precision will improve a lot.
