FIELD: electric engineering.
SUBSTANCE: device has three identical distance sensors, connected to appropriate measuring converters and information processing block. Two distance sensors are mounted relatively to controlled object differentially, and third one is rigidly fixed at constant and known distance from controlled object surface. Information processing block has adder block, two subtracting blocks, three multiplication blocks, two division blocks and memory block. As information value, characterizing object movement, displacement of point is taken, which is placed on one of object sides. Value of deformation is determined on basis of integral deformation of object between its extreme points.
EFFECT: higher precision, broader functional capabilities.
