Elena A. Badeeva, Doctor of engineering sciences, associate professor, professor of the sub-department of accounting, taxation and audit, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: email@example.com
Tat'yana I. Murashkina, Doctor of engineering sciences, professor, professor of the sub-department of instrument engineering, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: firstname.lastname@example.org
Ekaterina A. Polyakova, Head of reliability department, Research Institute for Physical Measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: email@example.com
Il'ya E . Slavkin, Postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: firstname.lastname@example.org
Aleksey N. Kukushkin, Master’s degree student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: Kukushkin.email@example.com
Background. To improve the accuracy of advanced fiber-optic information and measurement systems used in the harsh conditions of rocket and space and aviation technology, it is advisable to use the invariance method, which is based on the principle of multichannel using at least two channels for receiving and converting signals, designed in such a way that joint signal processing in the electronic path leads to interference compensation, reduction of additional errors due to the influence of external influencing factors (climatic, mechanical, etc.), changes in the supply voltage, bends of optical fibers. It is necessary to identify the conditions that ensure the division of the light flux in the miro-opto-mechanical system of fiber-optic sensors into at least two independent streams, the conversion of which is carried out independently in two measuring channels, as well as to determine the structure of an invariant fiber-optic information and measurement system that implements the principle of multichannel. The purpose of the work is to substantiate and implement the principle of spatial two-channel communication in fiber-optic information and measurement systems to reduce additional errors under the influence of external influencing factors. Materials and methods. A theory is presented that develops the principle of two-channel communication, including the necessary and sufficient conditions for its physical implementation in invariant fiber-optic information and measurement systems. A two-channel spatial transformation of optical signals directly in the measurement zone is proposed by dividing one light flux into two using special schemes for the arrangement of optical fibers at the ends of fiberoptic cables and optical-modulating elements, the measurement transformations of which are carried out independently in the first and second measurement channels. Results. An invariant fiber-optic information and measurement system has been developed that implements the principle of spatial two-channel transmission by converting two independent light streams from a single radiation source, which improves its technical and operational characteristics when operating under conditions characteristic of rocket-space and aviation equipment products. Conclusions. The two-channel principle in fiber-optic information and measurement systems made it possible to reduce additional measurement errors due to the influence of external influencing factors inherent in rocket and space and aviation technology by 1.5–2 times when implementing logometric or amplitude-phase conversion.
1. Petrov B.N., Viktorov V.A., Lunkin B.V., Sovlukov A.S. Printsip invariantnosti v izmeritel'noy tekhnike = The principle of invariance in measuring technolog. Moscow: Nauka, 1976:242. (In Russ.)
2. Nesterov V.N., Li A.R. Theory and practice of designing invariant measuring transducers and systems based on the two-channel principle. Izvestiya Samarskogo nauchnogo tsentra RAN = Proceedings of Sama Scientific Center of the Russian Academy of Sciences. 2016;18(4):1414–1422. (In Russ.)
3. Svistunov B.L. Transmitters for parametric sensors using analytical redundancy. Izmerenie. Monitoring. Upravlenie. Kontrol' = Measurement. Monitoring. Management. Control. 2017;2(20):94–100. (In Russ.)
4. Chernetsov M.V., Churakov P.P. Invariant transformation in measuring systems with parametric sensors. Izmerenie. Monitoring. Upravlenie. Kontrol' = Measurement. Monitoring. Management. Control. 2018;1(23):11–17. (In Russ.)
5. Murashkina T.I., Istomina T.V., Slavkin I.E., Chukareva M.M., Badeeva E.A., Motin A.V. Intellectual measuring system based of fiber optic sensors. Information Innovative Technologies: materials of the International scientific – practical conference. Moscow: Association of graduates and employees of AFEA named after prof. Zhukovsky, 2018:652.
6. Murashkina T.I., Badeeva E.A., Yurova O.V., Savochkina M.M., Motin A.V. Transformation of Signals in the Optic Systems of Differenzial-type Fiber-Optic Transducers. Journal of Engineering and Applied Sciences. 2016;11(13):2853–2857. doi:10.3923/jeasci.2016.2853.2857
7. Badeeva E.A., Shcherbakova A.A., Polyakova E.A., Murashkina T.I. Evaluation of explosion and fire safety of information-measuring systems based on fiber-optic sensors with an open optical channel. Obespechenie bezopasnosti AES s VVER: sb. tr. 11-y Mezhdunar. nauch.-tekhn. konf. (21–24 maya 2019 g., OKB «Gidropress» g. Podol'sk) = The security of the NPP with WWER: proceedings of the 11th International scientific and engineering conference (Podolsk, OKB “Gidropress”, May 21-24, 2019). Podol'sk, 2019:148–150. (In Russ.)
8. Murashkina T.I., Badeeva E.A. Volokonno-opticheskie pribory i sistemy: Nauchnye razrabotki NTTs «Nanotekhnologii volokonno-opticheskikh sistem» Penzenskogo gosudarstvennogo universiteta Ch. I = Fiber optic devices and systems: Research and Development Center “Nanotechnology of fiber optic systems”, Penza State University, Part 1. Saint-Petersburg: Politekhnika, 2018:187. (In Russ.)
9. Badeeva E.A., Murashkina T.I., Savochkina M.M. Luminous flux control in a fiber-optic measuring transducer. Journal of Physics: Conference Series (JPCS). 2017;803(1).
10. Badeeva E.A., Meshcheryakov V.A., Murashkina T.I. [et al.] Aircraft attenuator type fiber optic pressure sensors. Datchiki i sistemy = Sensors and systems. 2003;4:11–14. (In Russ.)
11. Dolgov I.I., Ivanov G.A., Chamorovskiy Yu.K., Yakovlev M.Ya. Radiation-resistant single-mode optical fiber with a quartz core. FOTON-EKSPRESS = PHOTONEXPRESS. 2005;6(46):4–10. (In Russ.)
12. Patent 2740538 Russian Federation. Sposob preobrazovaniya svetovogo potoka i realizuyushchiy ego volokonno-opticheskiy datchik davleniya = A method for converting a luminous flux and a fiber-optic pressure sensor that implements it. Badeeva E.A., Murashkina T.I., Serebryakov D.I., Badeev A.V. Publ. 15.01.2021, bull. no. 2. (In Russ.)
13. Murashkina T.I., Motin A.V., Badeeva E.A. Mathematical simulation of the optical system of a fiber-optic measuring micro motion converter with a cylindrical lens modulation element. Journal of Physics: Conference Series (JPCS). 2017;803(1):012101.
14. Patent 2290605 Russian Federation. Volokonno-opticheskiy preobrazovatel' peremeshcheniya = Fiber-optic displacement converter. Pivkin A.G., Murashkina T.I., Badeeva E.A. Publ. 27.12.2006, bull. no. 36. (In Russ.)