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US 4,156,472 AGranted
Apparatus for automatically changing the integration time and resolution of an electrical scale under predetermined operating conditions
AssigneeMettler Instrumente AG
InventorPeter Kunz
Life of this patent
Estimating the term…
Abstract
In an electrical scale, the weight of the load when the scale is in equilibrium is represented by counting pulses summed up over predetermined time intervals. The sum is displayed digitally. For such a scale, a control apparatus is furnished which automatically decreases the predetermined time intervals and also the number of digits in the display in response to a signal indicating that the scale is operating in a transient condition.
Claims13
Electrical scale, comprising, in combination, receiving means for receiving a load to be weighed;
- pulsing means for furnishing a plurality of pulses varying in number as a function of the weight of said load, summing said pulses over predetermined time intervals and furnishing a counting signal corresponding to the number of so-counted pulses;
- display means connected to said pulsing means for furnishing a digital display of said counting signal;
- and control means connected to said pulsing means and said display means, for automatically adjusting both the number of places in said digital display and the length of said predetermined time intervals in accordance with the then-present operating conditions.
Dependencies are inferred from the claim text.