Pressurized fluid-submerged, internal, close-range photogrammetry system for laboratory testing
AssigneeBoard of Trustees of the University of Arkansas
InventorsSean E. Salazar, Richard A. Coffman
Life of this patent
Estimating the term…
Abstract
A device for measuring strain and volume of a soil sample including an enclosure adapted to receive a soil sample within another enclosure. A base adapted to hold the sample enclosure. The device also has a plurality of moveable arms located between the enclosures which may be a spaced distance apart and adapted to move around the sample. Cameras as included on the arms.
Claims14
A device to determine the radial and axial strain of a specimen comprising:
- a plurality of small board pinhole cameras, located within a triaxial cell;
- and said pinhole cameras are mounted on diametrically-opposed arms and said arms are mounted to a rotating track.
A device for measuring strain and volume of a soil sample comprising:
- a first enclosure adapted to receive a soil sample, said first enclosure located within a second enclosure;
- a base adapted to hold said first enclosure;
- a plurality of moveable arms located between said enclosures, said arms located a spaced distance apart and adapted to move around said all or some of said first enclosure;
- and
- said arms including one or more cameras.
A method for measuring strain and volume of a soil sample comprising the steps of:
- providing a first enclosure adapted to receive a soil sample, said first enclosure located within a second enclosure;
- providing a base adapted to hold said first enclosure;
- providing a plurality of moveable arms located between said enclosures, said arms located a spaced distance apart and include one or more camera cameras;
- rotating said arms around said sample while said cameras capture images of said sample;
- and
- analyzing said images to determine the strain and volume of said sample.
Dependencies are inferred from the claim text.