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一、引言 为了探索引力波探测器的压电陶瓷换能器的粘合、组合方法,提高耦合系数β等,我们曾在1979年对M=146kg的小天线做了探索性实验。近年来,我们在小天线实验的基础上,完成了拟与广州中山大学做符合实验用的引力波天线的参数及噪声测试。压电陶瓷换能器的粘接及结构比小天线有所改进,灵敏度比小天线有较大提高。
I. INTRODUCTION In order to explore the bonding and combination methods of piezoelectric ceramic transducers for gravitational-wave detectors and to improve the coupling coefficient β, we conducted exploratory experiments on small antennas of M = 146kg in 1979. In recent years, based on the experiment of small antenna, we completed the parameter and noise test of the gravitational-wave antenna to be used in experiment with Sun Yat-sen University in Guangzhou. Piezoelectric ceramic transducer bonding and structure of the small antenna has been improved, the sensitivity is greater than the small antenna has been greatly improved.