METHODS FOR INCREASING THE EFFICIENCY OF A DUAL-CHANNEL OPTO-ELECTRONIC SIGHT
https://doi.org/10.21122/2220-9506-2018-9-2-182-186
Abstract
The actual task of the aiming equipment manufacturers is to develop autonomous models of optical sights capable of independently measuring and analyzing input parameters in combat conditions and on their basis to make corrections to the guidance system and aiming mechanisms. The aim of the study was to investigate methods for increasing the efficiency of the dual-channel opto-electronic sight of the DNS-1 model for small arms by analyzing the degree of influence of external environmental factors determining the trajectory of a bullet flight and the accuracy of its hit into the target.
The variant of the practical implementation of the DNS-1 sight with an integrated ballistic computer, taking into account: wind speed and direction, target location angle, ambient temperature, relative humidity and atmospheric pressure is considered. Evaluation of the rigidity and stability of the sight design was made when fastening it to the receiver along the «swallowtail» guide and on the «Picatinny» bar. In the variant with Picatinny rail, the loads are smaller and distributed more evenly along the line of the body of the sight. Calculations of the trajectory of the bullet from the cartridge 7Н10 with a caliber of 5.45 mm for the AK74Н at distances of 300 and 1000 m were carried out. At a distance of 300 m and at a value exceeding 53.2 cm, the throwing angle remains practically unchanged and lies within 0.2°. For long distances up to 1000 m, the ballistic angle increases to 3°. A method for measuring wind load using a thermal anemometer based on the Dantec Dynamics 55P11 sensor is proposed. Optimization of the anemometer housing design was performed and wind load simulation was performed, wind field velocity distribution was obtained in the aerodynamic blowdown of the anemometer assembly in the range from 2 to 20 m/s. A method is proposed for measuring the angle of the target site using an accelerometer based on the SCA830-D07 sensor with an accuracy of 0.00179°.
The presented research results show the possibility of creating a complex automated fire control system for small arms.
About the Authors
R. V. FiodortсevBelarus
Address for correspondence: Fiodortсev R.V. – Belarusian National Technical University, Nezavisimosty Ave., 65, Minsk 220013, Belarus. e-mail: fedortsev@bntu.by
A. P. Shkadarevich
Belarus
str. Makayonka, 23, building. 1, Minsk 220114, Belarus
Qusai Eid Mohammad
Syrian Arab Republic
Mousalam Baroudy Street, Damascus
A. V. Fufaev
Belarus
str. Makayonka, 23, building. 1, Minsk 220114, Belarus
References
1. Matveyev I.A., Bogdanova L.A., Tyurin P.V., Mironov P.Yu., Malykhin V.A., Shvets L.M., Khokhlov N.I., Stepanichev I.V. Sposob strel'by boevoi mashiny s zakrytykh pozitsii po nenablyudaemoi tseli i sistema upravleniya ognem dlya ee osushchestvleniya [The method of shooting a combat vehicle from closed positions for an unobserved target and a fire control system for its implementation]. Patent RF 2 444 693 C2 State Unitary Enterprise «Design Bureau of Instrument Engineering» (Tula). Declared: 11.01.2010. Posted on 10.03.2012. Bul. no. 7.
2. Shipunov A.G., Ignatov A.V., Kuznetsov V.M., Gudkov N.V., Ryndin M.V., Tanaev V.P., Dixhev A.I. [The concept of an ideal weapon. Armament and military equipment]. Proceedings of Tula State University. Technical science, 2014, is. 6, pp. 183–195 (in Russian).
3. Teledyne Awarded 25 Million Dollars to Lead in the Development of the Extreme Accuracy Tasked Ordnance (EXACTO) System Teledyne Technologies. Available at: http://www.defense.gov/contract.aspx?contractid=4377 (accessed 15.10.2010).
4. Boyd B., Lupher J. Precision guided firearms: disruptive small arms technology. Proc. SPIE, Display Technologies and Applications for Defense, Security, and Avionics VII, 2013, vol. 8736.
5. Leonov M.B., Nazarov V.N. [The conceptual model of the security system of video surveillance with the module of anticipation of danger]. IZV. VUZOV. Priborostroenie [IZV. HIGH SCHOOL. Instrument making], 2015, no. 5, pp. 380–384 (in Russian).
6. Danilin G.A., Ogorodnikov V.P., Zavolokin A.B. Osnovy proektirovaniya patronov k strelkovomu oruzhiyu [Basics of designing cartridges for small arms. Textbook], Baltic State Technical University, St. Petersburg, 2005, 374 p. (in Russian).
7. Kolomiytsev L.V., Sobakar I.S., Nikityuk V.T., Somov V.V. Patrony k strelkovomu oruzhiyu [Cartridges for small arms]. Kharkiv, 2003, 336 p. (in Russian).
8. Testing of an external ballistic calculator VAMPIRE SOLO. CJSC «Innovative Weapons Technologies»(IWT). Available at: http://inwetech.ru/publikaciya-1/ (accessed 23.03.20180).
9. Finn E. Jorgensen. How to measure turbulence with hot-wire anemometers – a practical guide. DANTEC Dynamics, 2002, 73 p.
10. Carlos Cesar Aparecido Eguti, Edson Del Rio Vieira. Development of a basic circuit of a hotwire anemometer. Proceedings of the 10o Brazilian Congress of Thermal Sciences and Engineering – ENCIT 2004 – ABCM, Rio de Janeiro, Brazil, Nov. 29 – Dec. 03, 2004, 9 p.
11. SCA830-D07 1-AXIS INCLINOMETER WITH DIGITAL SPI INTERFACE. Data Sheet. Murata Electronics Oy. Doc. # 82 823 00 D, 5 p. Available at: www.murata.com.
Review
For citations:
Fiodortсev R.V., Shkadarevich A.P., Eid Mohammad Q., Fufaev A.V. METHODS FOR INCREASING THE EFFICIENCY OF A DUAL-CHANNEL OPTO-ELECTRONIC SIGHT. Devices and Methods of Measurements. 2018;9(2):182-186. (In Russ.) https://doi.org/10.21122/2220-9506-2018-9-2-182-186