Industrial data-reduction and analogue¿digital conversion equipment

Representative examples of specifications for data-reduction systems are presented and the data-reduction system considered as a tool which can meet the wide variety of practical requirements. The central elements of the system are analogue-digital converters which are described in detail. Existing and proposed installations are reviewed in two main groups: electro-mechanical and electro-optical devices, and pure electronic converters. Only the main features of the other maior elements of the system¿input devices, programmers, alarm detectors and digital output devices¿are discussed. The probable trend of future development is outlined.