| MFT-PT型组合多路遥测仪 |
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| 引用本文： | 范希林,李国斌,贾玉珍,周成炳.MFT-PT型组合多路遥测仪[J].地球物理学报,1978,21(3):242-247. |
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| 作者姓名： | 范希林 李国斌 贾玉珍 周成炳 |
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| 作者单位： | 国家地震局地球物理研究所 |
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| 摘 要： | MFT-PT型遥测仪的研制,是为了在较大范围内（100-200公里）同时传输观测短周期、长周期地震信号和其他地球物理量. 该仪器系统是由脉冲幅度调制和频率调制两种遥测系统复合组成的.其设计特点有如等待式多相多谐振荡器,单管单稳电路等.遥测仪与电子计算机,磁带机配用可以达到快速综合处理地震信号的目的. 该仪器如果采用话音频率,则可以利用电话线路把地震信号送到几千公里之外.遥测仪如果与射频收发讯机配合,则可以构成无线流动台网.
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| 关 键 词： | 多路遥测 遥测仪 T型 地震信号 遥侧仪 PT系 脉冲幅度调制 多谐振荡器 地球物理研究 国家地震局 |
| 收稿时间： | 1976-06-02 |
A MFT-PT TYPE COMPOSITE MULTI-CHANNEL TELEMETRY SYSTEM |
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| FAN XI-LIN,LI GUO-BIN,JIA YU-ZHEN,ZHOU CHENG-BING.A MFT-PT TYPE COMPOSITE MULTI-CHANNEL TELEMETRY SYSTEM[J].Chinese Journal of Geophysics,1978,21(3):242-247. |
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| Authors: | FAN XI-LIN LI GUO-BIN JIA YU-ZHEN ZHOU CHENG-BING |
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| Institution: | Institute of Geophysics, State Seismological Bureau |
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| Abstract: | The purpose of designing and experimenting a MFT-PTtype composite multichannel telemetry system is to transmit and observe at the same time short period and long period seismic signals and other geophysical data for a comparatively large area （100-200kms radius）.It is a combination of the pulse amplitude modulation and frequency modulation types. The design of the system consists of some special features, such as the "Waiting Type" multi-phase multivibrator, singletube monostable circuit. When this system is used together with a computer and magnetic tape recorder, it is possible to process seismic data very quickly.If audio frequency is used, then by means of a telecommunication line, seismic signals can be transmitted to thousands of kilometers away. When radio frequency receivers and transmitters are used the system can be turned to be a portable telemetered seismic network. |
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