本文選題：核磁共振陀螺儀 + 多層磁屏蔽�。� 參考：《中國(guó)慣性技術(shù)學(xué)報(bào)》2016年03期

【摘要】：核磁共振陀螺是目前世界上體積最小的導(dǎo)航級(jí)陀螺。由于核磁共振陀螺通過(guò)探測(cè)原子核的宏觀磁化在靜磁場(chǎng)中的進(jìn)動(dòng)頻率來(lái)測(cè)量載體的角速度,為獲得高精度與大動(dòng)態(tài)范圍,需要確保靜磁場(chǎng)的穩(wěn)定性,防止外部磁場(chǎng)的干擾,所以必須對(duì)核磁共振陀螺進(jìn)行磁屏蔽。從核磁共振陀螺磁屏蔽原理出發(fā),通過(guò)數(shù)學(xué)計(jì)算和計(jì)算機(jī)仿真,分析和研究了多層磁屏蔽罩結(jié)構(gòu)參數(shù)對(duì)磁屏蔽系數(shù)的影響,并對(duì)核磁共振陀螺磁屏罩進(jìn)行了優(yōu)化設(shè)計(jì)。設(shè)計(jì)的多層磁屏蔽罩磁屏蔽系數(shù)達(dá)到了106,滿足核磁共振陀螺的使用需求。該工作為核磁共振陀螺儀的整體設(shè)計(jì)和制造提供了一定的理論依據(jù)和參考價(jià)值。
[Abstract]:Nuclear magnetic resonance gyroscope (NMR) is the smallest navigation gyroscope in the world. Since the magnetic resonance gyroscope measures the angular velocity of the carrier by detecting the precession frequency of the macroscopic magnetization of the nucleus in the static magnetic field, in order to obtain high precision and large dynamic range, it is necessary to ensure the stability of the static magnetic field and prevent the interference of the external magnetic field. Therefore, magnetic shielding must be carried out on the NMR gyroscope. Based on the principle of magnetic shielding of nuclear magnetic resonance gyroscope, the influence of the structure parameters of multi-layer magnetic shield on the magnetic shielding coefficient is analyzed and studied by mathematical calculation and computer simulation, and the optimization design of magnetic shield of nuclear magnetic resonance gyroscope is carried out. The magnetic shielding coefficient of the multilayer magnetic shield is up to 106, which can meet the needs of NMR gyroscope. This work provides a certain theoretical basis and reference value for the overall design and manufacture of NMR gyroscope.
【作者單位】： 西安飛行自動(dòng)控制研究所;
【基金】：總裝十二五航空支撐資助項(xiàng)目(61901060301)
【分類號(hào)】：V241.5
，

本文編號(hào)：2116700