本文選題：地磁導(dǎo)航 + 磁力儀　； 參考：《南京理工大學(xué)》2017年碩士論文

【摘要】：地磁導(dǎo)航是一種無源自主導(dǎo)航,具有抗干擾能力強(qiáng)、精度高和無累積誤差的優(yōu)點(diǎn),在軍用和民用方面都有極大的應(yīng)用前景。地磁信號(hào)匹配是地磁導(dǎo)航技術(shù)應(yīng)用關(guān)鍵技術(shù)之一,而磁場測量儀器的性能是測量信號(hào)與地磁基準(zhǔn)圖實(shí)現(xiàn)精確匹配的主要制約因素。本文以磁力儀為研究對象,對其電源和光電檢測技術(shù)進(jìn)行研究,主要完成的工作及研究成果包括:1)在深入研究原子磁力儀的工作原理基礎(chǔ)上,分析了銣原子在磁場中的塞曼效應(yīng)和光抽運(yùn)過程,基于原子能級原理和光電轉(zhuǎn)換原理,推導(dǎo)了光電探測器檢測電壓與磁場之間的解析式。2)對激光穩(wěn)頻技術(shù)進(jìn)行研究,通過控制激光管的工作溫度獲取所需激光波長,通過穩(wěn)定電流來穩(wěn)定激光波長。本文針對磁力儀光源和光電檢測技術(shù)兩個(gè)方面,設(shè)計(jì)了基于精度±0.1℃的溫度控制電路和基于精度±0.1mA的恒流源控制電路,實(shí)現(xiàn)了溫度39.5±0.1℃的控制和電流35.0±0.1mA的恒流控制,并設(shè)計(jì)了光電檢測電路。3)采用ZEMAX軟件對非球面透鏡進(jìn)行優(yōu)化和分析,確定了準(zhǔn)直透鏡和聚光透鏡的參數(shù),設(shè)計(jì)了系統(tǒng)的光路部分,搭建了雙光路差動(dòng)檢測系統(tǒng)。通過電路實(shí)驗(yàn)和光學(xué)實(shí)驗(yàn),驗(yàn)證了電路設(shè)計(jì)與光路設(shè)計(jì)的正確性,以及磁力儀光源部分和光電檢測部分的可行性。
[Abstract]:Geomagnetic navigation is a passive autonomous navigation with strong anti-jamming capability, high precision and no accumulated error. It has great application prospects in both military and civil fields. Geomagnetic signal matching is one of the key technologies in the application of geomagnetic navigation technology, and the performance of magnetic field measurement instrument is the main factor that restricts the accurate matching between the measured signal and the geomagnetic reference map. In this paper, the magnetometer is taken as the object of study, and its power supply and optoelectronic detection technology are studied. The main work and research results include: 1) on the basis of studying the working principle of atomic magnetometer in depth. The Zeeman effect and optical pumping process of rubidium atom in magnetic field are analyzed. Based on the principle of atomic level and photoelectric conversion, the analytical formula .2 between the detection voltage and magnetic field of photodetector is derived. The required laser wavelength is obtained by controlling the operating temperature of the laser tube, and the laser wavelength is stabilized by stabilizing the current. In this paper, a temperature control circuit based on precision 鹵0.1 鈩，

本文編號(hào)：2056591