Cc-d215a portable facial equipment

Description:Michigan Technological University devised a system capable of recording the earth motion and pressure due to downhole and surface seismic sources. This system was used to record four seismic sources, three downhole sources and one surface source. A single activation of each of the downhole sources was not seen on time traces above the ambient noise, however, one sweep of the surface source, a small vertical vibrator, was easily seen in a time trace. One of the downhole sources was seen by means of a spike in its spectrum and a second downhole source was clearly seen after correlation and stacking.

Views: 2955 Date: 2018-10-29 Favorited: 55