本文選題：電子技術(shù) + 無自旋交換弛豫原子磁力儀　； 參考：《吉林大學(xué)學(xué)報(工學(xué)版)》2017年02期

【摘要】：原子氣室溫度是直接影響無自旋交換弛豫(SERF)原子磁力儀的測量靈敏度的重要因素,本文設(shè)計研制了一種高精度的原子氣室無磁加熱系統(tǒng)。在硬件設(shè)計中,采用PTC加熱裝置與Pt1000溫度檢測電路共同構(gòu)成完整的閉環(huán)控制系統(tǒng)。在軟件設(shè)計中,針對不同目標溫度范圍,分別對P、I、D三個參數(shù)完成整定。同時采用積分分離式PID控制方法,以消除超調(diào),并通過間斷加熱的方式滿足磁力儀檢測時的極低干擾磁場要求。利用該系統(tǒng)進行溫度控制實驗,溫度控制范圍為80~190℃,溫度控制精度為±0.02℃,穩(wěn)定時間為60s,間斷加熱期間產(chǎn)生的干擾磁場低于0.1nT,為SERF原子磁力儀的性能提升提供了可靠保障。
[Abstract]:The temperature of atomic gas chamber is an important factor that directly affects the sensitivity of atomic magnetometer without spin exchange relaxation (SERF). In this paper, a high precision non-magnetic heating system for atomic gas chamber is designed and developed. In the hardware design, the PTC heating device and the Pt1000 temperature detection circuit are used to form a complete closed loop control system. In the software design, three parameters are set for different target temperature range. At the same time, the integral separation pid control method is used to eliminate overshoot, and the method of intermittent heating can meet the requirement of extremely low disturbance magnetic field in magnetometer detection. The temperature control experiment is carried out by using the system. The temperature control range is 80 鈩，

本文編號：2105452