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    • 3. 发明申请
    • LOW AND EMPTY PRODUCT DETECTION USING LOAD CELL AND LOAD CELL BRACKET
    • 使用负载电池和负载电池支架的低和空的产品检测
    • WO2009074929A1
    • 2009-06-18
    • PCT/IB2008/055107
    • 2008-12-04
    • ECOLAB INC.MEHUS, Richard J.WEBER, Bruce W.WILTSIE, Ben J.
    • MEHUS, Richard J.WEBER, Bruce W.WILTSIE, Ben J.
    • G01G17/04G01G23/00G01L1/26
    • G01G17/04G01G3/14G01G23/01G01G23/02
    • A system and method detect when a product container from which a product is dispensed is empty or nearly empty, and provides a notification of the product status. The system includes a load cell that deflects at a first rate of distance per unit load when a load less than a critical load is positioned to be weighed by the load cell, and a load cell bracket positioned such that the free end of the load cell contacts the load cell bracket when a load substantially equal to or greater than the critical load is positioned to be weighed by the load cell. The load cell bracket may prevent the load cell from further deflection, or it may permit deflection of the load cell at a second rate of distance per unit load when the load cell is in contact with the load cell bracket. The system may generate an out- of -product notification when the amount of product dispensed is substantially equal to zero, a low product notification when the amount of the product remaining is less than a threshold weight or a proof-of-delivery notification.
    • 一种系统和方法检测产品从其分发的产品容器是空还是几乎为空时,并提供产品状态的通知。 该系统包括负载传感器,当负载小于临界负载的负载被称重传感器称重时,以单位负载的第一距离偏转,并且负载传感器支架定位成使得称重传感器的自由端 当负载基本上等于或大于临界负载的负载被称重传感器称重时,接触称重传感器支架。 称重传感器支架可以防止称重传感器进一步偏转,或者当称重传感器与称重传感器支架接触时,可能允许以每单位负载的距离的第二速率使称重传感器偏转。 当所分配产品的数量基本上等于零时,该系统可以产生一个不合格产品的通知,当剩余的产品的数量小于一个阈值权重或一个证明交货通知时的低产品通知。