發(fā)布時(shí)間：2018-07-13 09:11

【摘要】：為了降低環(huán)境溫度對(duì)近紅外分布反饋式激光器(DFB)的輸出光功率以及中心波長(zhǎng)波動(dòng)的影響,采用PID控制方案設(shè)計(jì)了一種DFB激光器溫度控制系統(tǒng).PID系統(tǒng)通過硬件電路調(diào)整比例(K_p)、積分(K_i)及微分(K_d)參數(shù)來(lái)尋求動(dòng)態(tài)平衡建立時(shí)間和最大振蕩幅度的最佳值.結(jié)果表明,該溫度控制系統(tǒng)的控制精度為±0.05℃,溫度控制范圍為10~50℃.通過較長(zhǎng)時(shí)間的監(jiān)測(cè),DFB激光器的溫度始終處于穩(wěn)定狀態(tài),輸出的中心波長(zhǎng)沒有出現(xiàn)漂移,能夠滿足氣體濃度高檢測(cè)精度的要求.
[Abstract]:In order to reduce the influence of ambient temperature on the output power and central wavelength fluctuation of near-infrared distributed feedback laser (DFB), A temperature control system of DFB laser. Pid system is designed by using pid control scheme to find the best value of dynamic balance setting time and maximum oscillatory amplitude by adjusting the parameters of hardware circuit such as Kapp, integral and Kd. The results show that the control precision of the temperature control system is 鹵0.05 鈩，

本文編號(hào)：2118872