中文摘要：

本实验设计了一个测量红外发光二极管（RLED）各种特性的系统平台．该系统集电学、光学等相关知识，可测量RLED的电流一电压关系、电流一光强度关系、光谱分布特性、发光强度角分布特性，还可研究占空比对发光强度的影响．该系统具有成本低、灵敏度高、易操作等特点，可作为综合性研究性实验而用于大学物理实验教学．

英文摘要：

An experimental system for measuring properties of the infrared light-emitting diode （RLED） is designed. The relationships of current-voltage, current-light intensity, spectral distribution, angular distribution of luminous intensity and duty-luminous intensity are investigated. As low-cost, high sensitivity and easy operation, the system can be used for physics experiment teaching.