Measuring and testing – Testing by impact or shock – Accelerated or decelerated specimen
Patent
1996-03-11
1998-04-07
Biegel, Ronald L.
Measuring and testing
Testing by impact or shock
Accelerated or decelerated specimen
73 1213, G01N 330, G01M 700
Patent
active
057366314
ABSTRACT:
A system for impact analysis of soil surfaces includes a Clegg impact hammer, an accelerometer mounted on the hammer, an analog to digital converter to digitize the deceleration signal of the accelerometer, and a computer to store the digitized curve samples and to calculate selected impact parameters from the curve samples. The apparatus includes a notebook computer and additional components all of which are portable to enable storage of a great number of curve samples and calculation of the impact parameters for a large number of test points in the field immediately after each hammer drop.
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Dixon Charles R.
McWilliams Stephen B.
Biegel Ronald L.
Noori Max H.
Turf Diagnostics & Design, Inc.
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