| 摘要 |
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. |
