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Extensometer Image Gallery

By Virginia and West Virginia Water Science Center
Connecting drill stem to the top head drive on the USGS Research Rig Building housing the USGS Franklin extensometer The USGS Franklin pipe extensometer with a total depth of 860 feet. Building housing the USGS Suffolk extensometer The USGS Suffolk pipe extensometer with a total depth of 1,620 feet. The USGS Nansemond research station The USGS Nansemond pipe extensometer. The USGS Nansemond pipe extensometer (59D 39) with a total depth of 1, Analog dial gage (left) and a digital linear potentiometer (right) USGS Nansemond extensometer Pivot Block. Installing the linear potentiometer on the USGS Nansemond extensometer

Detailed Description

This slideshow displays photography of the Virginia Extensometer Network, including research sites, drilling operations, and operational borehole extensometers.

Sources/Usage

Public Domain.