| 摘要 |
PCT No. PCT/GB89/00630 Sec. 371 Date Jan. 16, 1991 Sec. 102(e) Date Jan. 16, 1991 PCT Filed Jun. 7, 1989 PCT Pub. No. WO89/12217 PCT Pub. Date Dec. 14, 1989.Weighing apparatus for weighing currency notes or coins has a weighing platform (4) coupled to a load cell (14) for generating a weight signal dependent upon the weight of items on the platform. The weighing machine includes a microprocessor (26) with associated memory (32, 34) which determines the number and/or value of the weighed items by dividing the weight signal by an appropriate weight factor. Where the quotient obtained is not an exact integer it is rounded. The quotient is compared with tolerance limits and a warning is given if the quotient falls outside these limits. To increase the accuracy of the machine while maintaining or reducing the number of warnings, means are provided to vary said tolerance limits in accordance with said weight signal or with said quotient.
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