摘要
本文提出一种地震计灵敏度的对比测量法,该方法将被测地震计和一台校准过的地震计比邻、平行摆放,共同记录地振动数据,通过对比分析两台地震计的输出信号,计算被测地震计的灵敏度。与振动台测量法相比,该方法成本低,与电测法相比,不需已知地震计的标定常数,是一种简单易行、精度高的地震计灵敏度测量方法。
A relative determination method for seismorneter sensitivity is introduced in this paper. The test seismometer and a carefully calibrated seismometer are put side by side and oriented in the same direction so that they can record the same ground motion. By analyzing the output signals from both seismometers, we can calculate the sensitivity of the test seismometer. Compared with using a shake table, this method is economically low cost. Compared with the electrical method, it does not involve the calibration constant. It is an accurate method to test seismometer sensitivity and it＇s easy to carry out.
出处
《地震》
CSCD
北大核心
2013年第1期22-28,共7页
Earthquake
基金
中国地震局地震预测研究所基本科研业务专项(2010IES0201)
关键词
地震计
灵敏度
标定
对比测量
振动台
电测法
Seismometer sensitivity
Calibration
Relative determination
Shake table
Electrical method
