process for the regulation of population density and food pourmise system implementing method

摘要

cond controllable feeders. The computed density is compared in comparison means with a set point density and a comparison signal is generated in response thereto. Means for generating mass flow set point signal is provided. The mass flow set point signal is operated on by means for generating a first and second complementary signal in accordance with the comparison signal. The first complementary signal is applied to the first controllable feeder as a set point signal and the second complementary signal is applied to the second controllable feeder as a set point signal whereby the first and second controllable feeders are controlled to produce the preselected set point density.