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Progress in esophagus disease treatment is possible with the knowledge on normal morphology and physiology of the organ. More important is studying organ structure in functional aspect. This paper discusses the methods used for investigation of esophagus function. More perspective one is the optical method allowing for registering the esophageal peristalsis graphically. In this case the registration is carried out on a series of the levels simultaneously arranged over the esophagus length. Optical method is characterized by harmlessness, fulfillment simplicity, and high noise immunity. Also, computer techniques wide usage gives the capability of on-line gathering and processing information. MC allows one not only to automate the process of measurement but also to use it for measurement procedure in digital form based on special software. That extends the capability of measurement means, allows one to realize the measurement algorithm of new level of complexity, to increase the measurement accuracy. Using MC allows one to raise the efficiency of measurement systems, organize the capability of program readjustment.