宽频带地震仪

随着宽频带地震观测技术的不断发展，全球及区域数字地震观测台网的密度正在不断加大，用于流动地震观测的宽频带地震仪的数量将继续迅速增加。

Along with continuous development of broadband seismologic observation techniques , the density of global and regional digital seismologic observation networks is constantly increasing , and the quantity of broadband seismograph using for mobile seismologic observation will rapidly increase .

观测中使用了两套宽频带地震仪和一套短周期地震仪，共获得距铁路0～2.15km的9个观测点的38次列车振动观测数据，全部记录均可分辨出清晰的地震波形。

We recorded some of the ground waves along the Datong-Qinling railroad in Northern China , with two sets of broad-band and one set of short-period seismometers . 38 shock events on 9 sites were clearly recorded at a distance of 0 ~ 2.15km to the railroad .

2002年7～9月，采用15台宽频带流动地震仪在长白山天池火山区进行了近3个月的地震观测，记录到大量发生在天池火山附近的地震和多次小震群。

A 15 broadband portable seismograph network operating in Changbaishan Tianchi volcanic region during July and September in 2002 recorded a large number of earthquakes and several earthquake swarms occurred near the volcano .

宽频带强震仪与地震仪同一台基上记录仿真对比研究

Comparison research on the records of wide band strong motion seismograph and seismometer at same station

地震仪的高精度、大动态范围、宽频带使得经典标定方法已不适用，国内外研究了多种标定宽频带数字地震仪的方法。

Traditional calibration methods cannot be used in seismometers with high-precision , wide dynamic range and broadband .