IMPROVING AN OPTICAL DISPLACEMENT SENSOR ACCURACY UNDER CONITIONS OF VIBRATION IMPACT ON THE MONITORED OBJECT
Abstract. Optical sensors based on a multi-element photodetector line are widely used in measuring technology. The effect of vibration on optical linear motion sensors is one of the factors that reduce the accuracy of measurements. An algorithm for processing the sensor signal is developed to reduce the negative impact of vibration on measurement accuracy. Numerical modeling methods are applied, and the characteristics of the Toshiba TCD1304 photodetector array are used as modeling parameters. The simulated range of the ratio of the period of integration of the photodetector array to the period of vibrations is from 0.02 to 2. The results of the study shows a decrease in measurement error compared with the sensor using the centroid method for estimating the linear position. Efficiency is achieved when the ratio of the integration period to the vibration period is greater than 0.1. Analysis of the results confirms the effectiveness of the developed signal processing algorithm in terms of increasing the dynamic metrological characteristics of linear motion sensors. The algorithm can be recommended for use in precision engineering and aeronautical engineering, where the problem of vibration interference is particularly relevant.
Acknowledgement: The work was carried out with the support of the Ministry of Education and Science of the Russian Federation within the framework of the State Assignment of the V. A. Kotelnikov Institute of Radio Engineering and Electronics of the RAS (FFWZ-2025-0005).
References:
1. Borisov R.A. Datchiki davleniy na osnove optoelektronnykh preobrazovateley dlya sistem upravleniya vysotno- skorostnymi parametrami vozdushnogo sudna (Pressure Sensors Based on Optoelectronic Converters for Aircraft Altitude-Speed Parameter Control Systems), Candidate’s thesis, Ulyanovsk, 2022. 187 р. (in Russ.) 2. Patent RU2712777, Datchik aerometricheskikh davleniy (Aerometric Pressure Sensor), I.V. Antonets, R.A. Borisov, A.A. Chertoriyskiy, Priority 13.05.2019, Published 31.01.2020. (in Russ.) 3. Berintsev A.V., Vesnin V.L., Chertoriyskiy A.A. Radioelectronic Engineering, 2011, no. 1(4), pp. 193–198. (in Russ.) 4. Kashtanov N.V., Chertoriyskiy A.A. Aktual’nyye problemy fizicheskoy i funktsional’noy elektroniki (Actual Problems of Physical and Functional Electronics), Proceedings of the 26th All-Russian Youth Scientific Conference, Ulyanovsk, October 24–26, 2023, рр. 304–306, DOI: 10.61527/APPFE-2023.304-306. (in Russ.) 5. Chertoriyskiy A.A. Radioelectronic engineering, Ulyanovsk, 2021, рр. 107–115. (in Russ.) 6. Lysenko A.V., Bushmelev P.E., Pivkin A.V. Young scientist, 2015, no. 21, pp. 185–187. (in Russ.) 7. TCD1304DG, https://static.chipdip.ru/lib/802/DOC052802372.pdf. 8. Chertoriysky A.A., Nizametdinov A.M. Radioelectronic Engineering, Ulyanovsk, 2023, рр. 144–155, DOI: 10.61527/ RET-2023.144-155. (in Russ.) 9. Kashtanov N., Chertoriysky A. 2024 International Conference on Actual Problems of Electron Devices Engineering (APEDE), Saratov, 2024, pp. 163–166, DOI: 10.1109/APEDE59883.2024.10715818. 10. Sergienko A.B. Tsifrovaya obrabotka signalov (Digital Signal Processing), St. Petersburg, 2002, 608 р. (in Russ.) 11. Chertoriyskiy A.A., Kashtanov N.V. Sovremennyye tekhnologii obrabotki signalov (STOS-2023) (Modern Signal Processing Technologies (STOS-2023)), Reports of the 4th All-Russian Conference, Moscow, December 12–13, 2023, рр. 64–68. (in Russ.)
