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2.1 调节和控制单元 一套三分向高分辨率的地震仪被用于检测地震信号。Wielandt和Steckeisen(1982)介绍的传感器按照力的平衡原理,把摆锤保持在零位以抵消地震力的作用。它们在精度、动态范围(大于140分贝)线性化以及传输功效的稳定性方面表现出良好的性能。以现在的经典方式,有二道输出可供利用,一个正比于0.2—20秒(BRB)之间的地动速度,以供“宽频带”的应用;另一道正比于DC—20秒(LP)的地动加速度,非常适于长周期或超长周期资
2.1 Conditioning and Control Unit A three-position, high-resolution seismometer is used to detect seismic signals. The sensors described by Wielandt and Steckeisen (1982) keep the pendulum zero in order to counteract the force of the earth’s force, in accordance with the principle of force balance. They show good performance in terms of accuracy, dynamic range (greater than 140 dB) linearization and stability of transmission efficiency. In the classical way, there are two outputs available, one proportional to the ground velocity between 0.2 and 20 seconds (BRB) for “wideband” applications and the other proportional to DC-20 seconds (LP ) Ground acceleration, very suitable for long-term or long-term capital