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SUPERCONDUCTING MAGNETIC LEVITATION BASED NORTH-SEEKING DEVICE AND NORTH-SEEKING METHOD THEREOF

机译：基于超导磁悬浮的寻北装置及其寻北方法

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摘要

A superconducting magnetic levitation based north-seeking device and north-seeking method thereof include a low temperature container (5), a refrigerator (6), a direction reference line (7), a heat transfer screen (8), a rotor cavity (9), a superconducting rotor (10), a radiation shield (11), an equatorial signal read-out figure (12), levitation coils (13), a driving coil (14), a polar-axis sensor (15), an equatorial sensor 1 (16) and an equatorial sensor 2(17). The equatorial signal read-out figure (12) on the surface of the superconducting rotor (10) is detected by the equatorial sensors, and then through calculation, the angular velocity components ω_ι and_{ω₂ of the horizontal component of the rotational angular velocity of the earth on the optical-axes of the two equatorial sensors can be obtained. By means of the formula α=arctan（ω_ι/ω₂）, the angle α between the equatorial sensor 1 (16) and the true north direction can be calculated. The external interference of the rotor is reduced because of the superconducting magnetic levitation technique, and the interference moment of the rotor is small because the material creep is small at low temperature, so a high-precision orientation is achieved. Furthermore, the north-seeking device has the advantage of short north-seeking time because of the short startup time and fast stabilization.}

机译：基于超导磁悬浮的寻北装置及其寻北方法包括低温容器（5），冰箱（6），方向参考线（7），传热屏风（8），转子腔（ 9），超导转子（10），辐射屏蔽罩（11），赤道信号读出图（12），悬浮线圈（13），驱动线圈（14），极轴传感器（15），赤道传感器1（16）和赤道传感器2（17）。通过赤道传感器检测超导转子（10）表面的赤道信号读出图形（12），然后通过计算得出角速度分量ω_{ι和_{可以得到两个赤道传感器的光轴上地球旋转角速度水平分量的ω_{2 。借助公式α= arctan（ω_{1 /ω_{2 ），可以计算出赤道传感器1（16）与真实北向之间的角度α。由于采用了超导磁悬浮技术，减少了转子的外部干扰，并且由于材料在低温下的蠕变小，转子的干扰力矩也较小，因此可以实现高精度的定向。此外，由于启动时间短且稳定快速，因此寻北装置具有寻北时间短的优点。}}}}}

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公开/公告号WO2013071775A1

专利类型
公开/公告日2013-05-23

原文格式PDF
申请/专利权人 INSTITUTE OF ELECTRICAL ENGINEERING CHINESE ACADEMY OF SCIENCES;HU XINNING;WANG QIULIANG;DAI YINMING;WANG HUI;CUI CHUNYAN;LIU JIANHUA;
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申请/专利号WO2012CN79750
发明设计人 HU XINNING;WANG QIULIANG;DAI YINMING;WANG HUI;CUI CHUNYAN;LIU JIANHUA;
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申请日2012-08-07
分类号G01C19/38;
国家 WO
入库时间 2022-08-21 16:33:02

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