Invention Grant
US08283580B2 System and method for counting nominally identical articles by weight
有权
按照重量计算名义上相同的物品的系统和方法
- Patent Title: System and method for counting nominally identical articles by weight
- Patent Title (中): 按照重量计算名义上相同的物品的系统和方法
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Application No.: US12311011Application Date: 2007-09-20
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Publication No.: US08283580B2Publication Date: 2012-10-09
- Inventor: Duncan McPhail , Neil James Hunter , William Wright Hamilton
- Applicant: Duncan McPhail , Neil James Hunter , William Wright Hamilton
- Agent William H. Bollman
- Priority: GB0618484.0 20060920
- International Application: PCT/GB2007/003582 WO 20070920
- International Announcement: WO2008/035087 WO 20080327
- Main IPC: G01G19/42
- IPC: G01G19/42 ; G01G23/10

Abstract:
A method and apparatus for counting nominally identical articles employs weighing apparatus, which comprises a load hod (102) for holding a number of articles to be weighed and a load transducer (20) responsive to loading of the hod (102) to produce a derived electrical signal indicative of the apparent weight of articles in the hod (102). The signal is susceptible to fluctuation as a result of local air currents acting on the hod (102) or on the articles contained therein. The transducer derived signal is filtered to extract a component signal representative of such fluctuation. After further processing, the filtered component signal is used to correct the original transducer signal thereby to indicate the true weight of articles in the hod (102). The number of articles in the hod (102) is then determined by dividing the true weight indication by an expected average weight of an article. Fluctuations in the transducer signal due to air currents may also be removed by a system of validation of the signals depending on whether or not they are within range limits based on a running average.
Public/Granted literature
- US20090301791A1 SYSTEM AND METHOD FOR COUNT BY WEIGHT CORRECTION Public/Granted day:2009-12-10
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