摘要
介绍了用于地震救灾的ＤＳＹ－１型固体传声微声生命探测仪的设计原理及其性能。测试结果表明，仪器功率增益高档大于８０ｄＢ，低档大于５７ｄＢ，灵敏度优于１０μＶ；放大器频率范围２０～１００００Ｈｚ。整机的频率范围与寻找被埋幸存者所遇到的不同类型的振动频谱相适应。
The designing principle and behaviour of the DSY-1 solid soniferous microsound life detector are described. The testing results show that the power gain of instrument is over 80 dB for top step and over 57 dB for low step, the sensibility is obove 10 μV, and the frequency range of amplifier is in 20～10 000 Hz. The frequency range of whole instrument is suitable for the different vibration spectrums encountered when searching the survivor buried in ruins of earthquake.
出处
《地壳形变与地震》
CSCD
1999年第2期76-80,共5页
Crustal Deformation and Earthquake
