Piezoelectric sensor module of a WIM system for two-track vehicles and measurement method

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United States of America Patent

PATENT NO 9488517
SERIAL NO

14400928

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Abstract

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A sensor module for measuring axle speeds and weights of double-track vehicles which travel in a direction of travel (L) along a carriageway with two lanes includes a plurality of piezoelectric strip sensors (A, B, C, D) that are arranged in a first lane group (I) and a second lane group (II). All the strip sensors (A, B, C, D) are spaced from each other in the direction of travel (L) via a secure longitudinal offset (LAD), which is greater than the maximum wheel contact length, and are offset from one another by between one centimeter and fifteen centimeters in the transversal direction. The sensor module also has a module length (LABCD) of less than 80 centimeters.

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Patent Owner(s)

Patent OwnerAddress
KISTLER HOLDING AGWINTERTHUR SWITZERLAND WINTERTHUR ZURICH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cornu, David Bellinzona, CH 18 122
Hofmann, Adrian Ellikon am Rhein, CH 15 114

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