Sensor arrangement for installation in carriageways and runways
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United States of America Patent
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Oct 31, 1995
Grant Date -
N/A
app pub date -
Jul 7, 1994
filing date -
Nov 23, 1993
priority date (Note) -
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Abstract
The invention concerns a sensor arrangement which is installed in the surface of carriageways or runways and serves to detect the wheel loads of vehicles or aircraft and/or their shear components on the surface during travel. The construction of the flanged tube sensor with piezoelectric crystal plates makes possible modular assembly, in that either piezo-plates sensitive to pressure P only, or to shear S, or to combinations of both are installed, since all piezo-plates have the same dimensions. The force introduction flange makes possible a concentration of the force lines onto the measuring arrangement with a substantial mechanical amplifying effect. The packing of the flanged tube sensor ready to install ensures proper fitting and positioning in the installation groove. Here the two rolling force insulation compounds and the foam insulator of the tubular part are important. The application of the invention lies in traffic management for weight detection. With the addition of shear measuring, new applications are feasible in vehicle testing tracks and aircraft landing runways, opening up new aspects of driving dynamics and security.
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