| 可调谐的低频连续引力波接收天线的研究 |
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| 引用本文： | 唐孟希,陈嘉言.可调谐的低频连续引力波接收天线的研究[J].物理学报,1982,31(10):1300-1307. |
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| 作者姓名： | 唐孟希 陈嘉言 |
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| 作者单位： | 中山大学引力物理研究室 |
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| 摘 要： | 我们设计制造了共振频率在47.3Hz到60.5Hz之间连续可调谐的低频引力波四极天线。天线的重量为498kg,室温时在空气中加上调谐系统后Q值为4.4×103。木文把天线的振动简化为在自由端附有—刚性质量的悬臂梁的振动。代替弹性力学的繁复计算,用材料力学的简单方法得到了可以满足要求的结果。本文对用机械方法调整频率的可能方案作了比较,并对把四极天线用于探测更低频的引力波的可能性进行了探讨。
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| 收稿时间： | 1981-11-02 |
RESEARCH ON TUNABLE ANTENNA TO DETECT CONTINUOUS GRAVITATIONAL WAVE AT LOW FREQUENCY |
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| Tang Meng-xi and Chen Jia-yan.RESEARCH ON TUNABLE ANTENNA TO DETECT CONTINUOUS GRAVITATIONAL WAVE AT LOW FREQUENCY[J].Acta Physica Sinica,1982,31(10):1300-1307. |
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| Authors: | Tang Meng-xi and Chen Jia-yan |
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| Abstract: | A quadrupole antenna has been designed and manufactured,Weight of theantenna is 498 kg. Having added the tuning equipment to the antenna,in room tem-perature and in the air,the Q value is 4.4×103.Resonant frequency of the antenna can be tuned continuously from 47.3 Hz to 60.5 Hz.Each quarter of the antenna issimplified by representing it as a cantinever beam with a rigid body in the free end.We calculate the resonant frequency by simple method of material meehanics insteadof the complicated method of elastic mechanics and obtain a satisfactory result.Several possible mechanical means to adjust the frequency are compared.In addition,we investigate the possibility of using this type of antenna to detect gravitationalwave at lower frequencies. |
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