DEVICE MEASURING DISTANCE TO VARIOUS POINTS ON SURFACE OF OBJECTS Russian patent published in 1999 - IPC

FIELD: metrology, measurement of distances and forms of objects. SUBSTANCE: device measuring distance to various points on surface of object has laser, acoustic and optical reception channels, meter of time intervals and computer. Acoustic channel includes three microphones positioned in vertexes of triangle formed by rigid bars, three band-pass amplifiers, three comparators, three counters, meter of time intervals. Signals from output of optical channel goes to their START inputs. Invention makes it possible to determine time intervals between coming of optical signal to object and acoustic signal hitting microphones. Then computer calculates distances between irradiated object and each of three microphones and coordinates of determined points of surface of object. Given device makes it possible to enhanced body of information on coordinates of points on surface of object. As proposed device is easily delivered to large-sized objects time needed for making measurements and cost of these measurements are reduced. EFFECT: enhanced body of information on coordinates of points on surface of object, reduced time and cost of taking measurements. 1 cl, 1 dwg