Precision Control of Dynamic Objects: Main Problems and Decisions

Abstract

The precision automatic control systems (PACS) provide high-precision control of output values of controlled objects with the helps of negative feedback loop. They differ from convenient automatic control systems (ACS) due to highest demands to the accuracy. Typically, the allowed value of the error of control is less then 0.0001%, while the convenient ACS which provide control with the error inside the 0.1% are considered as rather accurate ones. Most known PACS are used in the laser technology (for precise stabilization and measuring) and in electronic industry (for precise control of mechanic movements). For their developing, the competence in the two relative field of technology is necessary. Namely, the developer should be good specialist in feedback control systems (automatics) and in metrology (theory of measuring). This paper gives main directions of the researches for these purposes, main problems and their decisions.