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公开(公告)号：US08689930B2
公开(公告)日：2014-04-08
申请号：US13434631
申请日：2012-03-29
摘要： A seismic vibrator includes a baseplate having a surface configured to couple to a ground surface. A driver is coupled to the baseplate and is configured to move the baseplate in a vibratory manner. A decoupling system is coupled to a part of the baseplate other than the ground-contacting surface. The decoupling system includes a first layer having a Young's modulus greater than that of a second layer coupled to the first layer. The second layer is coupled to the baseplate. The Young's moduli, thicknesses and masses of the first and second layer are selected to provide the decoupling system with a resonant frequency of at most, a spatial aliasing frequency of seismic sensors deployed on the ground surface or a lowest seismic frequency of interest.
摘要翻译： 地震振动器包括具有配置成耦合到地面的表面的基板。 驱动器联接到基板并且被配置成以振动的方式移动底板。 脱耦系统耦合到底板的除地面接触表面之外的一部分。 去耦系统包括具有比耦合到第一层的第二层的杨氏模量大的杨氏模量的第一层。 第二层耦合到基板。 选择第一层和第二层的杨氏模量，厚度和质量以使解耦系统具有至多的共振频率，部署在地面上的地震传感器的空间混叠频率或感兴趣的最低地震频率。
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公开(公告)号：US08588030B2
公开(公告)日：2013-11-19
申请号：US12774304
申请日：2010-05-05
IPC分类号： G01V1/04
CPC分类号： G01V1/155
摘要： In one embodiment of the invention a method includes (a) operating a combustion engine at a first activity level corresponding to a first noise level; (b) charging an accumulator with a first pressure input; (c) lowering engine activity level of the engine to a second activity level corresponding to a second noise level that is lower than the first noise level; and (d) seismic sweeping with the vibrator based on the first pressure input and lowering engine noise from the first noise level to the second noise level.
摘要翻译： 在本发明的一个实施例中，一种方法包括（a）以对应于第一噪声水平的第一活动水平操作内燃机; （b）用第一压力输入对蓄电池充电; （c）将发动机的发动机活动水平降低到对应于低于第一噪声水平的第二噪声水平的第二活动水平; 和（d）基于第一压力输入的振动器进行地震扫描，并且将发动机噪声从第一噪声水平降低到第二噪声水平。
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公开(公告)号：US20110273966A1
公开(公告)日：2011-11-10
申请号：US12774304
申请日：2010-05-05
IPC分类号： G01V1/155
CPC分类号： G01V1/155
摘要： In one embodiment of the invention a method includes (a) operating a combustion engine at a first activity level corresponding to a first noise level; (b) charging an accumulator with a first pressure input; (c) lowering engine activity level of the engine to a second activity level corresponding to a second noise level that is lower than the first noise level; and (d) seismic sweeping with the vibrator based on the first pressure input and lowering engine noise from the first noise level to the second noise level.
摘要翻译： 在本发明的一个实施例中，一种方法包括（a）以对应于第一噪声水平的第一活动水平操作内燃机; （b）用第一压力输入对蓄电池充电; （c）将发动机的发动机活动水平降低到对应于低于第一噪声水平的第二噪声水平的第二活动水平; 和（d）基于第一压力输入的振动器进行地震扫描，并且将发动机噪声从第一噪声水平降低到第二噪声水平。
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