S.A. Lysenko1, A.M. Pristash2, N.N.Yuryshev3, V.I. Denisenkо4, D.G. Tagabilev5, N.F. Starodubtsev6

1–3, 6 Lebedev Physics Institute of the Russian Academy of Sciences, Trinity Separate subdivision (Moscow, Troitsk, Russia)

4,5 Russian Scientific Center of Surgery named after Academician B.V. Petrovsky, Scientific and Clinical Center No. 3 (Moscow, Troitsk, Russia)
1 s.lyssenko@mail.ru, 2 pristash1973@mail.ru, 3 yuryshev@rambler.ru, 4 nkc3@med.ru, 5 dimatagabilev@list.ru, 6 nfstaro@gmail.com

As a rule, medical equipment based on optical sensors can lead to distortions in the obtained results when the area under study is simultaneously exposed to external optical radiation. This is acceptable, for example, when studying the impact or developing lighting devices for physiotherapy procedures. To minimize possible errors, it is necessary to understand the mechanism of operation of the optical sensor. Unfortunately, not all manufacturers provide complete information about their equipment, since the use of such devices does not imply their use in conditions significantly different from normal.

The aim of the work is to study the possibility of using the ready-made MAX30102 pulse oximeter module, as well as the external STM32F401 microcontroller module and the ST-Link V2 programmer-debugger for STM32 as a fast and cost-effective method of optical sensor measuring stand for research in the field of pulse oximetry in precise time mode. It is also planned to create the necessary hardware software based on open software libraries for the MAX30102 pulse oximeter module and the STM32F401 microcontroller module.

The time intervals of the optical components of the module were studied and the moments of measuring the external background, as well as the duration of data transmission in one measurement cycle, were determined.

The operation of the manufacturer's built-in compensation system for the external background when exposed to IR radiation with a power density of up to 200 MW/cm2 has been verified., which is close to the maximum for low-intensity light exposure, was tested. An increase in interference in the recorded readings of the MAX 30102 pulse oximeter module was detected when exposed to external infrared radiation (λ=850 nm) with a power density of 100 mW/cm2 at the point of its attachment.

The tested methods may be useful in studies of the effect of optical radiation on hemoglobin using similar pulse oximeter modules to minimize possible optical interference.

These measurement approaches with concomitant external light exposure will help developers of such medical devices when testing them in real conditions in the presence of external interference to improve the accuracy of parameter measurement by the MAX30102 pulse oximetry module.

Lysenko S.A., Pristash A.M., Yuryshev N.N., Denisenkо V.I., Tagabilev D.G., Starodubtsev N.F. Determination of the operating time of optical components and the data transmission interval in one measurement cycle of the MAX30102 pulse oximetry module // Biomedicine Radioengineering. 2026. V. 29. № 4. P. 69–80. DOI: https:// doi.org/10.18127/ j15604136-202604-07

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