WEIGHING APPARATUS

Japanese Patent JP3426351

B2

PURPOSE: To allow high-speed weighing even if a range to be weighed in weight and shape is wide by selecting the signal which has stabilized most rapidly among weighing signals which are filtered by a plurality of filters having different filtering characteristics.
CONSTITUTION: In order to remove a natural frequency of a weighing apparatus in respective weights and shapes most effectively, filtering characteristics different from one another are set for digital filters 18-1 to 18-8. Weighing signals A0 to A8 sampled at predetermined sampling cycles and digitized by an ADD- converter 6 are stored in a RAM 26 of the corresponding filters 18-1 to 18-8, and filtered weighing signals (analyzed data) B1 to B8 calculated by each calculator 24 based on the weighing signals A0 to A8 are output to respective stabilization determiners 20-1 to 20-8. The determiners 20-1 to 20-8 determine, based on the analyzed data B1 to B8, the data which has stabilized most rapidly, and a data selection means 22 selects the analyzed data which is determined to have stabilized most rapidly to output it as weighing data.

Susumu Shioji

JP15528894A

July 14, 2003

June 13, 1994

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ISHIDA CO.,LTD.

G01G11/00; G01D3/028; G01G15/00; G01G19/387; G01G23/36; G01G23/37; (IPC1-7): G01G11/00; G01D3/028; G01G15/00; G01G23/36; G01G23/37

JP6383619A
JP52131764A
JP781906B2
JP715407B2
JP612291B2
JP621814B2
JP833321B2
JP569175B2

【文献】特許2719722(JP,B2)
【文献】特許2741251(JP,B2)
【文献】特許3226974(JP,B2)

Shuji Sugimoto (1 person outside)

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