高可靠深井地震计输出符合性检验

Examination of Coherence for High Reliable Deep Borehole Seismometer

深井井下地震综合观测对仪器的可靠性要求很高,为满足高可靠性的要求,我们提出了基于6个斜轴悬挂平动分量传感器的高可靠深井地震计解决方案。使用该方案的高可靠深井地震计的可靠性是普通三分量地震计的20倍,为了最大限度发挥高可靠深井地震计方案的优势,需要掌握各分量的工作状态。本文研究了所有6个分量传感器输出波形的特征,提出垂直向波形符合性检验、水平向波形符合性检验和X、Y、Z波形符合性检验方法,由此掌握各分量传感器的工作状态。这些方法有助于确定井下各分量地震计的工作状态,从而决定采用适当的组合来获得相对最佳的X、Y、Z输出波形,最大限度发挥6分量井下地震计的性能。

To meet the the high requirement on reliability of instruments for deep borehole seismic observation.a high reliable seismometer architecture with 6 same tilt suspension transducers is proposed.The reliability of this kind of seismometer is 20 times of a normal one.To take advantage of the 6 component architecture,the state of all the components should be known clearly.A set of methods for examination of consistency of a high reliable 6 component seismometer,includes examination of consistency of up-down waveform,examination of consistency of horizontal waveform,examination of consistency of XYZ output waveform,is given in this paper.The methods are helpful for determination of the state of 6 components,then help to decide which 3 components will be selected to get the best XYZ output waveform,then get the best specification of the high reliable 6 component seismometer.