ACOUSTIC PROFILER Russian patent published in 2015 - IPC G01B17/00 

FIELD: physics.

SUBSTANCE: proposed device comprises rod with two acoustic radiators, start button and adapter to contact with measured object surface, acoustic receiver with three mikes equipped with pulse leading edge shapers and secured at rigid triangle vertices. Besides, profiler comprises three-channel electronic unit with every channel including band amplifier, comparator and time interval counter, all being connected in series. Electronic unit is connected via appropriate interface with the computer. Acoustic receiver is composed of equilateral triangular antenna installed at support points. Note here centres of two mikes should be located at the axis perpendicular to the plane of its datum points. Note here that antenna face surface is closed with noise-insulating screen with opening for mikes. Target some 20 mm in diameter with cross at its centre is located on screen surface between said mikes while laser target indicator is arranged between inductive electric loudspeakers.

EFFECT: higher accuracy, lower labour input.

3 cl, 3 dwg