本文選題：Bang-Bang控制 + PID控制��； 參考：《紅外技術(shù)》2017年11期

【摘要】：紅外探測(cè)器作為星載偏振探測(cè)載荷的核心部件,用于實(shí)現(xiàn)短波紅外波段輻射偏振信息的光電轉(zhuǎn)換。為保證應(yīng)用性能,需要對(duì)探測(cè)器進(jìn)行精密溫控,保證其工作在較低且穩(wěn)定的溫度以降低探測(cè)器熱噪聲和暗電流。本文介紹了一種紅外探測(cè)器溫控系統(tǒng),采用FPGA控制完成溫度信號(hào)的采集并輸出控制信號(hào),數(shù)模轉(zhuǎn)換器控制三極管驅(qū)動(dòng)電流完成半導(dǎo)體制冷器的驅(qū)動(dòng),采用Bang-Bang和PID復(fù)合控制算法完成探測(cè)器的精密溫控,測(cè)試結(jié)果表明,溫控精度優(yōu)于±0.1℃,溫度穩(wěn)定時(shí)間小于6 min,可將探測(cè)器在較短的時(shí)間內(nèi)控制在目標(biāo)溫度范圍內(nèi),為實(shí)現(xiàn)短波紅外波段的高精度偏振信息測(cè)量提供保障。
[Abstract]:As the core component of the spaceborne polarization detection load, the infrared detector is used to realize the photoelectric conversion of the radiation polarization information in the short-wave infrared band. In order to ensure the performance of the detector, it is necessary to control the temperature of the detector precisely and to work at a low and stable temperature to reduce the thermal noise and dark current of the detector. In this paper, a temperature control system of infrared detector is introduced. The temperature signal is collected and output by FPGA control, and the drive current of semiconductor cooler is controlled by digital-analog converter. The precision temperature control of the detector is accomplished by using Bang-Bang and PID compound control algorithm. The test results show that the temperature control precision is better than 鹵0.1 鈩，

本文編號(hào)：1827113