LASER PROFILOMETER FOR DETERMINING GEOMETRIC PARAMETERS OF SURFACE PROFILE Russian patent published in 2018 - IPC G01B11/30 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring equipment, in particular to devices for optical non-contact surface profile measurement, and can be used to measure the parameters of unevenness, surface roughness, for example, of a road surface, metal surfaces and complex shapes articles. Laser profilometer for determining geometric parameters of a surface profile contains a laser source with a laser beam-to-line converter, an optical matrix receiver of the reflected radiation and an information processing device. Laser source is made in the form of a semiconductor laser operating in the pulsed mode with an integrated temperature stabilization system. In the course of the reflected beam, at least one narrow-band interference light filter is introduced before the optical matrix receiver. In addition, a semiconductor laser operating in the visible red wavelength range is used, the temperature stabilization system is based on Peltier elements with a controller and a temperature sensor.

EFFECT: increasing the accuracy of the measurement by reducing the error of the profilometer while simplifying its design.

4 cl, 1 dwg