SLED光源的恒温恒流控制系统研究

基金项目:

国家自然科学基金海外青年合作基金资助项目(60028505)

详细信息

The study of constant temperature and current control system for SLED

摘要: 采用以单片机为核心的控制电路和PID控制算法,对SLED的温度和驱动电流进行高精度的控制,使工作温度可在0℃～30℃设定范围内稳定到±0.01℃以内,驱动电流在20mA～200mA设定范围内可稳定在±0.02mA以内,满足了光纤传感系统对光源光谱分布和输出功率稳定性的需要。
- 超亮度发光二极管 /
- 恒温 /
- 恒流 /
- PID /
- 单片机
Abstract: The stability of optical sources is required in many fiber optic sensor systems.This paper describes a high precision constant temperature and constant current control system for SLED, which is based on a singlechip computer.The system is able to control the temperature variation within ±0.01℃ and current drift under ±0.02mA by utilizing PID control algorithm, which meets the demands of the reliability and stability of the optical sources for sensor systems.
- SLED /
- constant temperature /
- constant current /
- PID /
- singlechip computer

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