| 摘要 |
The invention provides a weight sensor (10) which includes a first electrically conductive sheet (12) electrically isolated from a second electrically conductive sheet (14) by inserts of a closed cell foamed polymeric dielectric (16) and an elastic dielectric (18) in spaces (20) formed between the inserts (16) located between the sheets (12, 14). The sensor (10) also includes capacitive measuring means (24), electrically connected between the first sheet (12) and the second sheet (14), which measures a change of capacitance between the sheets (12, 14) when a vehicle passes over the sheets (12, 14). The sensor (10) further includes converting means (26) for converting the change of capacitance to a number related to a weight of the vehicle.
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