用于SERF原子磁力仪的原子气室无磁加热系统

发布时间：2018-07-07 15:50

  本文选题：电子技术 + 无自旋交换弛豫原子磁力仪　； 参考：《吉林大学学报(工学版)》2017年02期

【摘要】：原子气室温度是直接影响无自旋交换弛豫(SERF)原子磁力仪的测量灵敏度的重要因素,本文设计研制了一种高精度的原子气室无磁加热系统。在硬件设计中,采用PTC加热装置与Pt1000温度检测电路共同构成完整的闭环控制系统。在软件设计中,针对不同目标温度范围,分别对P、I、D三个参数完成整定。同时采用积分分离式PID控制方法,以消除超调,并通过间断加热的方式满足磁力仪检测时的极低干扰磁场要求。利用该系统进行温度控制实验,温度控制范围为80~190℃,温度控制精度为±0.02℃,稳定时间为60s,间断加热期间产生的干扰磁场低于0.1nT,为SERF原子磁力仪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，

本文编号：2105452