Abstract

A method is proposed for testing pressure gauges and z-accelerometers, installed in seafloor observatories. The method is based on the linear relationship between variations of the ocean-bottom pressure and the z-acceleration, observed during seismic movements of the bottom within the frequency band of ‘‘forced oscillations’’. Calculation of the boundaries of this frequency band is based on the ocean depth at the observatory site making use of explicit formulae. In the case of correct calibration of the gauges calculation of the ratios of power spectra of bottom pressure variations and the z-accleration within the band of ‘‘forced oscillations’’ yields constant values equal to the square ratio of the total mean pressure and the gravity acceleration. The conditions for application of the proposed method are formulated.

中文翻译：

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海底天文台传感器性能检查方法

摘要

提出了一种测试安装在海底观测站中的压力计和z加速度计的方法。该方法基于海底压力变化与z加速度之间的线性关系，该变化是在“强迫振荡”频段内底部的地震运动期间观察到的。该频段边界的计算是基于天文台使用明确公式的海深。在对压力计进行正确校准的情况下，计算底部压力变化的功率谱与“强制振荡”范围内的z加速度的比率之比得出的常数值等于总平均压力与压力的平方比。重力加速度。提出了应用该方法的条件。