Patent ID: 7870776
Filing Date: 2011-01-18
Classification: G01G

Abstract:
1. A weighing scale, comprising: a mass receiver for receiving a mass to be weighed by the weighing scale; electronic circuitry configured to provide the weighing scale with a weighing mode and a self-calibration mode, said weighing mode for weighing a mass placed upon said mass receiver; a base supporting said mass receiver when the weighing scale is in said weighing mode, said base contributing to an actual inverted sprung weight of the weighing scale when the weighing scale is inverted and supported by said mass receiver; a load cell located between said mass receiver and said base and in operative communication with said electronic circuitry, said load cell configured to output a weight signal proportional to a force applied to said load cell in each of said weighing mode and said self-calibration mode; and wherein said electronic circuitry is configured to calibrate the weighing scale as a function of the actual inverted sprung weight when said electronic circuitry is in said self-calibration mode.