Online using load cell

Online, force-loop-feedback systems are used for weight control on most production tablet presses. Upper and lower punch forces as well as mean punch force can be monitored by load cells for each station on the tablet press. Deviations between the target and actual compaction forces are measured, and adjustments to the punch filling depth are automatically made to bring the mean force back into the target range. In some cases, the speed of the force feeders on the press is adjusted by reducing the observed variability of the compression force data. 

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