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| 引用本文： | 吴艳霞,胡国庆,蒋幼华,张道忠,朱小平.????????????????????[J].大地测量与地球动力学,2008,28(5):133-135. |
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| 作者姓名： | 吴艳霞 胡国庆 蒋幼华 张道忠 朱小平 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所,武汉,430077;中国地震局地震研究所,武汉,430071;地壳运动与地球观测实验室,武汉,430071
2. 中国地震局地震研究所,武汉,430071 |
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| 基金项目： | 中国地震局地震研究所所长基金 |
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| 摘 要： | ????????Ч????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????迹????÷???????????????????????????????????????????????????????????????????????0.000 1?棬?????С??0.000 1?档
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| 关 键 词： | ??????????? ????????? ?????? ??????? ?????????? |
THERMOSTAT OF HIGH PRECISION GRAVITY METER |
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| Wu Yanxia,Hu Guoqing,Jiang Youhua,Zhang Daozhong,Zhu Xiaoping.THERMOSTAT OF HIGH PRECISION GRAVITY METER[J].Journal of Geodesy and Geodynamics,2008,28(5):133-135. |
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| Authors: | Wu Yanxia Hu Guoqing Jiang Youhua Zhang Daozhong Zhu Xiaoping |
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| Institution: | 1)Institute of Geodesy and Geophysics, CAS, Wuhan 4300772)Institute of Seismology, CEA, Wuhan 4300713)Crustal Movement Laboratory,Wuhan 430071 |
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| Abstract: | To reduce the influence of temperature on the parameter of gravity meter and insure the observation precision of the high precision gravity meter , a high precision thermostat is developed. On the basis of the automatic control principle, the temperature control system including rational heating structure, pre amplifier of low drift and high input impedance and ratio integrating amplifier of appropriate control parameter was designed meticalaly and stable temperature sensing elements were chosen as well. Through test, the temperature control accuracy of this apparatus is 0.000 1℃, its month drift is less than 0.000 1℃. |
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| Keywords: | high precision gravity meter thermostat heating structure design temperature control accuracy automatic control principle |
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