作者: Paul Jeffrey Derego , Antonio Gomez , Brian Herridge , Joshua J. Trujillo , Robert Anthony Thom
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摘要: An apparatus for generating seismic waves includes a housing, strike surface within the and hammer movably disposed housing. actuator induces striking motion in such that impacts as part of motion. The is selectively adjustable to change characteristics generated by impact. may be modified physical hammer, thereby changing hammer. removable shock cavity, include two hammers cavities positioned symmetrically about center apparatus.