Tiltmeter-based weighing device

摘要

Since the inception of the Intermediate-range Nuclear Forces (INF) Treaty, weight has been considered as a screening criterion for mad and rail vehicles which are capable of carrying treaty-limited items. Portal monitoring system concepts include provisions for installing in-road scales capable of weighing vehicles as they exit through treaty-designated monitoring portals. Major detriments to the treaty use of weigh-in-motion scales are the resources required for installation and maintenance. In addition, the road surface itself must meet certain criteria for suitable scale operation. Tiltmeters are precision inclinometers which show promise as an inexpensive, extremely portable, and quickly deployed indirect weighing device. For weighing heavy vehicles, tiltmeters respond to the local earth deformations as the result of a heavy object, such as the axle from a moving rail car. This paper provides the basis of a tiltmeter-based weighing device and presents the analytical and experimental results of tiltmeter measurements made on slow moving road and rail vehicles.