| 摘要 |
<p>Apparatus for weighing vehicles in motion comprising a support member across which vehicles to be weighed will travel, and a transducer arranged to produce a first electrical signal indicative of the force applied to the support member when a vehicle passes over it. Also provided is a filter circuit for attenuating the alternating component in the first electrical signal. This filter circuit comprises means for deriving from the first signal a second signal corresponding to the alternating component thereof, and means for combining the first and second signal in such a way as at least partially to remove the alternating component of the first signal.</p> |
