CAJ | 학술논문

为了使半导体激光器辐射波长和发光强度的稳定性不受环境温度的影响，设计了一款高精度半导体激光器温控系统。采用AD620和LTC1864芯片设计了温度采集电路，用MAX1968和LTC1655设计了温度控制电路，而用TMS320F2812实现对整个系统的精确控制；提出了自适应模糊比例-积分-微分控制策略并完成了软件实现。在环境温度约15℃时，分别设定25℃和20℃进行试验，温度控制精度达±0．05℃。结果表明，该温控系统响应速度快、稳定性高。
위료사반도체격광기복사파장화발광강도적은정성불수배경온도적영향，설계료일관고정도반도체격광기온공계통。채용AD620화LTC1864심편설계료온도채집전로，용MAX1968화LTC1655설계료온도공제전로，이용TMS320F2812실현대정개계통적정학공제；제출료자괄응모호비례-적분-미분공제책략병완성료연건실현。재배경온도약15℃시，분별설정25℃화20℃진행시험，온도공제정도체±0．05℃。결과표명，해온공계통향응속도쾌、은정성고。
To solve the problem that stability of radiation wavelength and luminous intensity of a laser diode were affected easily by temperature , a high precision laser diode temperature control system was designed . Temperature acquisition circuit was designed by means of AD 620 and LTC1864 and temperature control circuit by MAX 1968 and LTC1655.The whole system was controlled accurately by a TMS 320F2812 controller.Adaptive fuzzy proportion-integration-differentiation control strategy was proposed and the software was achieved .At the environmental temperature around 15℃, control precision of temperature was up to ±0.05℃ when the target temperature was set to 25℃ and 20℃ respectively. Experimental results show that the temperature control system has the advantages of fast response and high stability .