PROCESS FOR DETERMINING THE CONVEYOR POWER OF A CONVEYOR-BELT WEIGHER AND A DEVICE FOR CARRYING THIS OUT
In order to improve the accuracy of conveyor-belt weighers, in particular dosing belt weighers, a process for determining the conveyor power is proposed whereby at least two weighing cells (5, 6) are provided with a predetermined distance (D) between them, their weighing signal curves (5b, 6b) being compared taking into a ccount the band speed (v). An error signal (F) is generated by any deviation in the belt load values (q1, q2) of the weighing cells (5, 6) which are shifted by the time difference (t) calculated from the distance (D) and belt speed (v). To determine the belt speed (v), preferably a time phase shift is calculated by correlation of the two weighing signal curves (5b, 6b), and the calculated time difference (t) is used, taking into account the distance (D). In addition, a device is disclosed for carrying out this process.