用光导纤维传输地震信号

TRANSMlTlNG SEISMIC DATA BY OPTICAL FIBRE CABLE

1. 地质矿产部重庆地质仪器厂;2. 地质矿产部石油物探研究大队

本文介绍了利用光导纤维来传输地震信号的新技术,即利用载波调幅及频分制的原理,将地震信号变成光信号,通过光导纤维制成的光缆,将各道地震信号传送至地震仪加以记录。

This paper deals with a new technique for transmiting seismic data by optical fibre cable, namely, by means of principles of carrier wave with amplitude modulation and frequency demultiplication, thus converting seismic data into light data. Seismic data of each trace are transmited via optical cable made of optical fibre to the seismograph for recording.