APPARATUS FOR SENSING CONDITIONS LOCAL TO A CONVEYOR BELT
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United States of America Patent
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app pub date -
Nov 20, 2009
filing date -
Feb 6, 2008
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Abandoned
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Abstract
Apparatus and method for sensing conditions local to a modular conveyor belt and wirelessly transmitting signals representing those conditions to an off-belt belt monitoring system. A load cell pin installed in a clevis formed at a hinge joint between adjacent rows of a modular conveyor belt serves as a clevis pin to interconnect the rows and as a sensor sensitive to belt tension transmitted through the clevis. A special load-sensing belt module forms the clevis and holds electronic circuitry that takes the measurements made by the sensor, logs them in a memory element, and transmits them wirelessly to the belt monitoring system. The measurements may also be used as part of a closed-loop control system to control the speed or other operating characteristics of the conveyor system. Furthermore, a variety of sensors housed in sensor modules similar to standard conveyor belt modules may be installed in the belt as drop-in replacements for standard modules.
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