Webanalyzing the first arrival times of P-waves (longitudinal or compressional waves) at the surface of the earth. This technique is termed seismic refraction. Applications of subsurface imaging include locating buried archeological sites, assessing subsurface geological hazards, defining aquifer geometry, and exploring for fossil fuel and http://science8sc.weebly.com/compressional--longitudinal-waves.html

Method of seismic exploration using elliptically polarized shear waves …

WebA disturbance of matter that travels along a medium. Examples include waves on a string, sound, and water waves. Wave speed. Speed at which the wave disturbance moves. … WebA bi-directional telemetry system for use in a wellbore environment is provided. The bi-directional telemetry system includes a first acoustic telemetry component and a second acoustic telemetry component that is separate from the first acoustic telemetry component. The first acoustic telemetry component comprises a downhole acoustic transmitter … megan rosenthal

Flywheel method of generating SH waves专利检索-···利用旋转 ...

Webtype of seismic wave. In Earth exploration: Seismic refraction methods. …can travel through a body: P waves (primary) and S waves (secondary). P waves are compressional … WebSound waves traveling through a fluid such as air travel as longitudinal waves. Particles of the fluid (i.e., air) vibrate back and forth in the direction that the sound wave is moving. This back-and-forth longitudinal motion creates a pattern of compressions (high pressure regions) and rarefactions (low pressure regions). A detector of pressure at any location … WebThe invention relies upon a shear wave source of a type which couples a continually rotating longitudinal force into an earth medium thereby to propagate an elliptically polarized shear wave for refraction, reflection or subsurface detection, various forms of exploration being well within the capabilities. 权利要求 nancy afro shop wolfsburg