Patent ID: 8844161
Filing Date: 2014-09-30
Classification: D06F

Abstract:
1. A method of measuring the weight of the laundry inside a drum of a tumble laundry drier; the method comprising the steps of: starting a drying/ironing cycle and feeding drying air into the drum from a drum input to a drum output; and continuously measuring the electrical resistance/conductivity between two electrodes contacting the laundry inside the drum; the method being characterized by comprising the step of: estimating the weight of the laundry inside the drum by evaluating a noise level of a signal representing instantaneous values of the electrical resistance/conductivity measured between the two electrodes over time, wherein the weight of the laundry inside the drum is estimated to be below a weight threshold if the noise level of the signal is above a noise level threshold, and the weight of the laundry inside the drum is estimated to be above the weight threshold if the noise level of the signal is below the noise level threshold.