ntum. If it is able of doing so, its sensitivity is equal to one quantum. Sensitivity is defined by the NF profundity/intensity. The NF profundity/intensity is a number of quanta of action of the single SFU system which sum is identified as the discrepancy between the actual and appropriate/proper action. The NF profundity/intensity is preset by the command. The highest possible NF profundity/intensity is the sensitivity of discrepancy in one quantum of action of single SFU. The less the NF profundity/intensity, the less is sensitivity, the more it is "rough". In other words, the less the NF profundity/intensity, the larger value of the discrepancy between the result of action and the proper result is interpreted as discrepancy. For example, even two (three, ten, etc.) Quanta of action of two (three, ten, etc.) SFU is interpreted as discrepancy. Minimal NF profundity/intensity is its absence. In this case any discrepancy of the result of action with the proper one is not interpreted by the control block as discrepancy. The result of action would be maximal and the system with simple control block with zero NF profundity/intensity would turn into composite SFU with DPC (with simplest/elementary control block). For example, the system of the Big Circle of Blood circulation for microcirculation in fabric capillaries should hold average pressure of 100 mm Hg accurate to 1 mm Hg. At the same time, average arterial pressure can fluctuate from 80 to 200 mm Hg. The value "100 mm Hg "determines the level of controllable result of action. The value "from 80 to 200 mm Hg "is the range of controllable external (entry) influence. The value of "1 mm Hg" is determined by NF profundity/intensity. Smaller NF profundity/intensity would control the parameter with smaller degree of accuracy, for example, to within 10 mm Hg (more roughly) or 50 mm Hg (even more roughly), while the higher NF profundity/intensity would do it with higher degree of accuracy, for example to within 0.1 mm Hg (finer). Maximal NF sensitivity is limited to the value of quantum of action of SFU which are part of the system, and the NF profundity/intensity. But in any case, if discrepancy between the level of the controllable and preset parameters occurs to the extent higher than the value of the preset accuracy, the NF loop should "feel" this divergence and "force" executive elements to perform so that to eliminate the discrepancy of the goal and the result of action. Maximal level of controllable outlet/exit signal (range) for NF is the level of signal about the result of action of the system at which all SFU are actuated. The system cannot react to the further increase in entry signal by increase in its function any more, because it has no more of SFU reserves. The time of actuating of NF control is the time interval between the onset of discrepancy of signal about the result of action with the preset result and the beginning of the system's operation. All these par...
