Abstract :
The need and use of statistical methods for quality control of a continuous industrial process is discussed and some examples of quality control based on statistical techniques, but employing a ¿human¿ controller described. The advantages and disadvantages of automatizing such control from the engineering, economic and social points of view are considered. The prime functions of statistical controller are discussed. An outline of some of the circuit techniques employed is given and two practical examples are quoted¿one in the bakery industry and one in cable manufacture¿of the application of automatic statistical control, with histograms, etc., showing improvements effected by the apparatus.
