| 基于MSP430F449的半导体激光器温控系统设计 |
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| 引用本文： | 张悦玲,杨绍岩,张晓娟.基于MSP430F449的半导体激光器温控系统设计[J].光电技术应用,2012,27(3):10-13. |
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| 作者姓名： | 张悦玲 杨绍岩 张晓娟 |
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| 作者单位： | 光电信息控制和安全技术重点实验室,河北三河065201 |
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| 基金项目： | 国家部委基金(9140C150104100C1501) |
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| 摘 要： | 为了改善传统的半导体激光器温度控制系统体积大、噪音大且精度有限等缺点,研制开发了一种基于MSP430F449单片机与DS18B20数字温度传感器的半导体激光器温控系统。结合PID控制算法,利用PWM脉宽调制,控制热电制冷器的驱动电流,实现对激光器的恒温控制。实验表明,该系统温控精度优于±0.1℃,能够为半导体激光器提供稳定的温度环境。
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| 关 键 词： | MSP430F449 数字温度传感器 PWM 热电制冷器 |
| 收稿时间： | 2012/4/19 |
Design of Temperature Control System of Semiconductor Laser Based on MSP430F449 |
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| ZHANG Yue-ling,YANG Shao-yan,ZHANG Xiao-juan.Design of Temperature Control System of Semiconductor Laser Based on MSP430F449[J].Electro-Optic Technology Application,2012,27(3):10-13. |
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| Authors: | ZHANG Yue-ling YANG Shao-yan ZHANG Xiao-juan |
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| Affiliation: | (Science and Technology on Electro-Optical Information Security Control Laboratory,Sanhe 065201,China) |
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| Abstract: | To overcome the shortcomings such as big volume, big noise and limited control precision of the traditional temperature control system of the semiconductor laser, a temperature control system of the semiconductor laser is developed based on the MSP430F449 single chip and DS18B20 digital temperature sensor. In the system, the drive current is controlled by using PWM pulse width modulation and combining with PID algorithm, so the constant temperature of the laser is controlled. The experiment results show that the temperature control precision of the system is better than ±0.1 ℃, and steady temperature condition can be offered for the semiconductor laser. |
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| Keywords: | MSP430F449 digital temperature sensor PWM thermoelectric cooler(TEC) |
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