We are Generating an Enlightened Consumer DOI: 10.22184/1993-7296.FRos.2020.14.1.22.28
Modern high-tech industries are increasingly using the latest advances in information technology: digital doubles, CAD / CAM systems and new accounting and control systems. It is impossible to use such systems in the present production process without identification and labeling of products. At the same time, for mass production, it is important that the speed of marking does not limit the speed of production of products. That is why the market for laser markers is growing rapidly. But the market for precision laser cutting of sheet metals, plastics and other materials is also growing.Where does the border go dividing the market segments of laser engraving systems and laser cutting systems? We are talking about this, as well as the development of the domestic laser machine market and the education of laser literacy, with the Director of Innovation of the Laser Center LLC, Ivan Fomenko, Ph.D., an experienced specialist in solving non-standard problems in the field of laser applications.
All-Russian Strategic Session on the Development of Photonics as a “Cross-Cutting” Technology of STI DOI: 10.22184/1993-7296.FRos.2020.14.1.12.21
City Perm became on March 20–22, 2020 the venue of the All-Russian Strategic Session. Session name - the development directions of the photonics as an “Cross-Cutting” technology of the Science and Technology Initiative. The event was organized by the Government of the Perm Territory, ANO Platform NTI, JSC Russian Venture Company (NTI Project Office) and the Photonics cluster led by the Perm Scientific and Production Instrument-Making Company.
Methods for Controlling Geometric Parameters and Internal Stresses of Additive Technology Products DOI: 10.22184/1993-7296.FRos.2020.14.1.42.54
The creation of measuring systems for additive processes is hindered by the lack of diagnostic
and control systems for manufactured products. The quality of the parts obtained by the methods of additive technologies varies greatly due to inadequate dimensional tolerances, surface roughness, as well as defects and the presence of fields of mechanical stresses. This leads to the fact that the slightest deviation of external conditions arising in the manufacturing process, can cause a mismatch of the final product in shape or properties. The measuring system should have the potential to be integrated into a single production complex. This is due to the fact that the result of measuring the geometric parameters of specific products must be compared with the mathematical model developed in the CAD system, and measurements of defects, latent stresses, product structures must be transferred to the CAE system to decide on the suitability of the product or to develop an algorithm and technologies for its further
processing. To control the parameters of products of additive technologies, a system based on the methods of structured light and shearography is proposed.
LLS-YFLSM‑1000 – 1 kW Single-Mode Fiber Laser With High Radiation Quality DOI: 10.22184/1993-7296.FRos.2020.14.1.30.33
The article is devoted to the development of a single-mode fiber laser with a power of 1 kW with high quality radiation. The laser is used in materials processing and scientific projects. Key
characteristics, as well as the results of measurements of the beam quality, radiation spectrum and laser parameters in pulsed mode.
Properties of Multicomponent Alloys Obtained by Additive Laser Technologies DOI: 10.22184/1993-7296.FRos.2020.14.1.34.40
A review of the research of foreign studies on the characterization of high-entropy alloys (HEA) is given in this article. It has been shown that HEA based on a body-centered lattice (BCL) of a solid solution are more heat-resistant than a highly entropic alloy based on a face-centered lattice (FCL) of a solid solution. The results of the obtained quasi-high-entropy alloys (QHEA) with new properties instead of expensive highentropy alloys by introducing several serial powder materials based on iron, nickel, cobalt and tantalum nanocarbide additives to increase the wear resistance of coatings obtained by laser welding are presented. The introduction of 6% tantalum nanocarbide into the QHEA charge increases the wear resistance by 2.8 times compared to surfacing without carbide and increases the wear resistance by 7.2 times compared with the characteristic of the base material made of 40X steel. The technology of laser cladding QHEA can be used to restore various parts of machines, including those operating at elevated loads and temperatures. The characteristics of coatings obtained in the process of laser cladding are given. The range of variation of the operating parameters of the laser radiation is indicated: power of the displacement velocity, beam diameter.
Multispectral Fire Detection System by “Design Bureau “Astron” – Technology and Economics DOI: 10.22184/1993-7296.FRos.2020.14.1.106.114
The detectors of fire protection systems for the budget consumer have a high proportion of false alarms. A project of a multispectral fire detection system is presented, where a useful signal is distinguished against false interference by a combination of signals from detectors analyzing images in several spectral (visible, average IR, thermal IR) ranges. The test results are presented.
Television Lenses for Surveillance Systems DOI: 10.22184/1993-7296.FRos.2020.14.1.96.104
The features of constructing television lenses for surveillance systems are considered. When
designing television lenses, it is necessary to take into account a set of factors that affect the
magnitude of the detection range: the pixel size of the selected matrix and its resolution, focal length, relative aperture and field of view of the lens. The optimal combination of these factors along with the design of the lens allows you to achieve high resolution and get the maximum detection range.
Harmonization with European Union Standards: Issues, Problems, Solutions DOI: 10.22184/1993-7296.FRos.2020.14.1.56.65
Harmonization of Russian regulatory documents with European Union (EU) standards is necessary to increase the effectiveness of mechanisms for the mutual recognition of certification results by national laboratories, certification centers and qualification communities. This article identifies significant differences between Russian and foreign documents, creating obstacles to simplify harmonization, and suggests possible solutions to the problems that have arisen.
Basic Test Plates: Two New and Relevant Uses in Optical Technologies DOI: 10.22184/1993-7296.FRos.2020.14.1.68.74
New possibilities are proposed for using the basic test plates (BTP) to solve two pressing problems in modern optical technologies – improving methods and means of metrological support for monitoring optical elements and increasing the productivity of manufacturing lenses and mirrors with spherical working surfaces. The solution to the first problem is based on the use of a reference set including a couple of BTP (convex and concave) and a reference on-axis computergenerated hologram optical element (CGHOE). To solve the second problem, it is proposed to use the BTP as reference masters with the subsequent production of copies of submatrices of specified sizes from them using precise replication.
Spectral Analysis of Temporal Velocity Changes as an Approach to Determining the Properties of Positioning Systems DOI: 10.22184/1993-7296.FRos.2020.14.1.76.86
We describe a method of monitoring of the instantaneous velocity of moving elements
in positioning systems. It is shown that various internal or external sources (engines,
transmissions, carriages, etc.) cаn give contribution into the velocity variation. A comparison of several drives is given, including the case of a sharp velocity reduction, namely, the defect of non-critical “jamming” when the amplitude of the vibration velocity components decreases to zero. The developed method is of interest for monitoring the occurrence and development of defects in positioning systems during its operation.
Use of Fiber Optic Technologies to Verify the Operational Parameters of Meteorological Lidars 10.22184/1993-7296.FRos.2020.14.1.116.126
Meteorological lidars are currently one of themost universal and informative devices for noncontact atmospheric research. Depending on the type, they are able to provide information on the altitude of the lower cloud cover, the number and density of cloud layers, the atmospheric dynamic parameters (wind speed and direction, wind shear, vortex traces, etc.). Despite the growing demand and a wide application range of meteorological lidars, today there is no sufficiently universal and practical method for verifying their operational parameters. The article describes a promising method for verification the operational parameters of meteorological lidars based on the use of fiber-optic technologies.
Multicolour Multiphoton Microscopy Based on a Nanosecond Supercontinuum Laser Source DOI: 10.22184/1993-7296.FRos.2020.14.1.88.94
This article from the journal Journal of Biophotonics was translated with the consent of the authors and in full agreement with the terms of open access under a Creative Commons Attribution-Non Commercial-No Derivs license.
Multicolor multiphoton microscopy is experimentally demonstrated for the first time on a spectral bandwidth of excitation of 300 nm (full width half maximum) thanks to the implementation a nanosecond supercontinuum (SC) source compact and simple with a low repetition rate. The interest of such a wide spectral bandwidth, never demonstrated until now, is highlighted in vivo: images of glioma tumor cells stably expressing eGFP grafted on the brain of a mouse and its blood vessels network labelled with Texas Red® are obtained. These two fluorophores have a spectral bandwidth covering the whole 300 nm available. In parallel, a similar image quality is obtained on a sample of mouse muscle in vitro when excited with this nanosecond SC source or with a classical high rate, femtosecond and quasi monochromatic laser. This opens the way for a simple and very complete biological characterization never performed to date with multiphoton processes, multiple means of contrast in nonlinear imaging allowed by the use of numerous fluorophores and other multiphoton processes like three-photon ones.