Regular Article

Real-time laser ultrasound tomography for profilometry of solid objects

V. P. Zarubin$^{1,2}$, A. S. Bychkov$^{1,2}$, A. A. Karabutov$^{1,2}$, V. A. Simonova$^{1,3}$, I. A. Kudinov$^1$, E. B. Cherepetskaya$^2$

Moscow University Physics Bulletin 2018. 73. N 1. P. 75

Article

Annotation

Laser ultrasound tomography for profilometry of solid objects is proposed. This approach provides high spatial resolution, high efficiency and ability to profilometry contaminated objects or submerged in liquids objects. Algorithms for tomograms reconstruction and recognition of objects profiles using the NVIDIA CUDA parallel programming technology are investigated and implemented. A prototype of the real-time laser ultrasonic profilometer is tested on solids of revolution. The proposed method allows determining the position of solids surfaces with approximation accuracy of up to 16 microns in real time.

Received: 2016 December 20

Approved: 2018 June 25

PACS:

42.30.Wb Image reconstruction; tomography
43.38.+n Transduction; acoustical devices for the generation and reproduction of sound

Authors

V. P. Zarubin$^{1,2}$, A. S. Bychkov$^{1,2}$, A. A. Karabutov$^{1,2}$, V. A. Simonova$^{1,3}$, I. A. Kudinov$^1$, E. B. Cherepetskaya$^2$
$^1$Lomonosov Moscow State University, International Laser Centre\
$^2$Moscow Institute of Steel and Alloys. College of Nanotechnology and new materials\
$^3$3Institute on Laser and Information Technologies RAS (ILIT RAS)

Issue 1, 2018

Moscow University Physics Bulletin

Science News of the Faculty of Physics, Lomonosov Moscow State University

This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.