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泥石流地声特性及NJ—2型无线遥测泥石流警报器的研制
Language中文
陈精日; 章书成; 叶明富
Corresponding Author陈精日
1991-12
Source Publication第二届全国泥石流学术会议 ; 第二届全国泥石流学术会议论文集
Pages36-41
Conference Date1986-10-20~24
Conference Place四川成都
Publication Place北京
Publisher科学出版社
Funding Organization中国科学院地学部
AbstractN-J2型泥石流遥测警报器采用JMD—2型无线电话机作为传输信号之用,其工作频率为150兆周,半双工功能,我们除保留有其通话功能外,还增加检测功能,加接五元八木天线,以增强其通讯能力。其检测功能是由收端发一个2.3千周的单稳态电路长达—分钟去控制一个模拟“地声”信号的振荡器,匣发端工作并送回收端,收端收到信号后即打开警报电路执行报警,这个过程的准确完成,证明整个工作系统处于正常工作状态。
Keyword泥石流地声特性 无线遥测 泥石流警报器
ISBN7-03-002672-1
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7673
Collection成都山地所知识仓储(2009年以前)
Corresponding Author陈精日
Recommended Citation
GB/T 7714
陈精日,章书成,叶明富. 泥石流地声特性及NJ—2型无线遥测泥石流警报器的研制[C]. 北京:科学出版社,1991:36-41.
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