虚拟仪器技术在光照度检测中的应用研究

摘要

Photoelectric detection system will be affected by various environmental factors changes and produce a certain error, and the changes in temperature are main factors, only to error correction can improve detection accu-racy. On the process of light detection based on photodiode, the Virtual Instrument Technology is applied to achieve error correction and simulation in photoelectric detecting data, and realize the linear transformation between light signal and electronic signal. Simulation results show that the Virtual Instrument Technology based on Lab VIEW ap-plies to photoelectric detection system and can improve the precision of photoelectric detection.%光电检测系统受到各种环境因素变化的影响会产生一定的误差,其中温度变化的影响是主要因素,因此只有进行误差修正才能提高检测精度.在基于光电二极管的光照度检测过程中,应用虚拟仪器技术对光电检测数据进行误差修正并仿真,实现了在不同温度下光信号和电信号的线性转换.仿真结果表明,基于LabVIEW的虚拟仪器技术适用于光电检测并能够提高光电检测的检测精度.