Method to estimate the degree of compaction obtained at compaction and means to measure the degree of compaction for carrying out the method
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United States of America Patent
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-
Sep 26, 1989
Grant Date -
N/A
app pub date -
Jun 11, 1986
filing date -
Nov 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Estimation of the degree of compaction of a bed when using a compacting machine employs an oscillatory principle. The oscillatory compacting machine is arranged to act on the bed by gravitational force and rapidly alternating horizontal force. The method uses a recorded signal from a horizontally mounted sensor connected to the bearing of the roller drum. The system for performing this method, utilizes a processor to calculate results which are presented by a display unit. Beside the acceleration sensor another sensor and a switch are used in order to enable calculation by the processor of different kinds of averages of the compaction meter value and also for determination of travel speed.
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