1.静态地震台网英国地质科学研究所的地震台网是以带有Willmore 地震计的热电管模拟磁带记录器和放大调节器装置为基础的。本系统是将一系列野外地震台通过地面线路或 UHF 无线电与记录器连结。在典型装置中,将短线路(达1或2公里)的三分量基准台,用低功率无线电通信线路与一些更远(达100公里)的台站联接。目前,在巴西工作的地震台网,是备有20 1. STATIC SEISMIC STATIONS The British Geological Institute’s seismic network is based on a thermocouple analog tape recorder and amplifier controller with a Willmore seismometer. The system is a series of field seismographs through terrestrial lines or UHF radio and recorder link. In a typical installation, a three-component reference station for short lines (up to 1 or 2 km) is connected to some further stations (up to 100 km) using low-power radio communication lines. At present, the seismic network working in Brazil is equipped with 20