Ground assessment

Details Ground assessment Ground assessment

2006-01-10

2006-01-10

Noland, Thomas P. (Department: 2856)

Measuring and testing

Hardness

By penetrator or indentor

C073S084000

Reexamination Certificate

active

06983643

ABSTRACT:
For assessing ground quality, such as a condition of a racetrack, a handheld device has a shaft, a plate mounted to its bottom end, and a sensor body also mounted to the bottom of the shaft, independently of the plate. A tine tip projects below the sensor body. The sensor body has compression sensors and shear sensors. The user pushes down on the shaft. The tine tip penetrates the ground until the plate abuts the surface. Continued pushing leads to a compression reading. The user then pushes the top of the shaft so that it tilts, pivoting about an edge of the plate. Shear forces are sensed by the shear sensors. The compression and shear data pass to a data processor that computes a single value indicative of the ground quality.

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patent: 198 06 903 (1999-09-01), None

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