D.S. Loginov1, T.A. Kholomina2, V.G. Litvinov3

1-3 Ryazan State Radio Engineering University named after V.F. Utkin (Ryazan, Russia)

Formulation of the problem. Carrying out express diagnostics of switching reliability and parameters of magnetically controlled contacts necessitates the creation of a device that will make measurements accurate and automated.

Goal. Development of an automated measuring and analytical complex for multiple switching (artificial wear) of magnetically controlled contacts.

Results. An automated measuring and analytical complex for multiple switching (artificial wear) of magnetically controlled contacts has been developed, providing voltage in the switched circuit from 0.1 to 10 V, current from 0.01 to 3 A, switching frequency from 1 Hz to 100 kHz, process duration switching from 5 s to 48 h.

Practical value. The automated measuring and analytical complex allows, in real time, with predetermined parameters of the switched circuit, to perform multiple switching of magnetically controlled contacts for subsequent studies of low-frequency noise spectra, composition and morphology of the contact surface in order to predict the reliability of devices.

Loginov D.S., Kholomina T.A., Litvinov V.G. Мeasuring and analytical complex for automated testing magnetically controlled contact. Radiotekhnika. 2022. V. 86. № 3. P. 134−140. DOI: https://doi.org/10.18127/j00338486-202203-13 (In Russian)

1. Zhigal’skii G.P., Kholomina T.A. Excess noise and deep levels in GaAs detectors of nuclear particles and ionizing radiation. Journal of Communications Technology and Electronics. 2015. V. 60. № 6. S. 517-542 (In Russian).
2. Loginov D.S., Krutchenko O.N., Litvinov V.G., Kholomina T.A., Ermachikhin A.V., Rybin N.B., Semenov A.R. Study of Low Frequency Noise Parameters of Metal Contacts. ICNF 2019 – 25th International Conference on Noise and Fluctuation. Neuchâtel (Switzerland). 2019. P. 1-4.
3. Description of STM32F1 HAL and low-layer drivers [jelektronnyj resurs]. 2021. URL: https://www.st.com/resource/en/user_manu-al/dm00154093-description-of-stm32f1-hal-and-lowlayer-drivers-stmicroelectronics.pdf (data obrashhenija 07.09.2021).
4. Future Technology Devices International Ltd. FT232R USB UART IC [jelektronnyj resurs]. 2021. URL:https://www.ftdic-hip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf (data obrashhenija 06.09.2021).
5. AD8403 Digital Potentiometer [jelektronnyj resurs]. 2021. URL: https://www.analog.com/ru/products/ad8402.html#product-overview (data obrashhenija 08.09.2021).
6. Fully Integrated, Hall-Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor [jelektronnyj resurs]. 2021. URL: https://www.allegromicro.com/en/products/sense/current-sensor-ics/zero-to-fifty-amp-integrated-conductor-sensor-ics/acs712 (data obrashhenija 14.09.2021).
7. Octal transceiver with direction pin 74ABT245D [jelektronnyj resurs]. 2021. URL: https://www.nexperia.com/products/analog-logic-ics/asynchronous-interface-logic/transceivers/74ABT245D.html (data obrashhenija 16.09.2021).
8. Semenov A.R., Litvinov V.G., Holomina T.A., Ermachihin A.V., Kostrjukov S.A., Loginov D.S. Razrabotka avtomatizirovannogo kompleksa dlja issledovanija spektrov nizkochastotnogo shuma v jelementah i strukturah jelektronnoj tehniki. Radiotehnika. 2017.
   № 5. S. 179-185 (In Russian).
9. Loginov D.S., Kholomina T.A., Litvinov V.G., Rybin N.B., Semenov A. R., Rybina N.V. Comprehensive implementation of the magnetic contact reliability test method. Proceedings of the 2020 30th International Conference Radioelektronika (RADIOELEKTRONIKA).
   P. 134-138.
10. Baskakova A.V., Loginov D.S., Rybin N.B. Issledovanie struktury poverhnosti pokrytij magnitoupravljaemyh kontaktov posle ih kommutacionnyh ispytanij. IV Mezhdunar. nauch.-tehnich. forum «Sovremennye tehnologii v nauke i obrazovanii» (STNO-2021). Rjazan'. 2021. S. 47-51 (In Russian).