METHOD FOR COUNTING NUMBER OF REVOLUTIONS OF BURR OF COFFEE MILL AND APPLIANCE COMPRISING THE MILL

摘要

PROBLEM TO BE SOLVED: To provide a method for counting the number of revolutions of a burr of a coffee mill driven in rotation by an electric motor.;SOLUTION: According to the method: at least one electrical parameter P_i of the motor that varies in proportion to the speed of the motor is measured in a regular time interval T_i; the speed V_i in each time interval T_i is calculated from the parameter P_i based on an experimentally obtained relation; and the number of revolutions N_i made by the burr in each time interval T_i is calculated from the speed V_i determined.;COPYRIGHT: (C)2009,JPO&INPIT