research-focus Research Focus International Scientific Journal Research Focus 2181-3833 Ilm-fan va innovatsiyalar akademiyasi 10.66073/researchfocus.v4i4.1542 REL-A-012874 05.00.00 CREATION OF CHEMICAL SENSORS AND ALARMS TO ENSURE EXPLOSION AND FIRE SAFETY OF DOMESTIC AND INDUSTRIAL FACILITIES СОЗДАНИЕ ХИМИЧЕСКИХ ДАТЧИКОВ И СИГНАЛИЗАТОРОВ ДЛЯ ОБЕСПЕЧЕНИЯ ВЗРЫВОПОЖАРОБЕ ЗОПАСНОСТИ БЫТОВЫХ И ПРОМЫШЛЕННЫХ ОБЪЕКТОВ UY VA SANOAT OB‘EKTLARINING PORTLASH VA YONG‘IN XAVFSIZLIGINI TA‘MINLASH UCHUN KIMYOVIY SENSORLAR VA SIGNALIZATORLAR YARATISH Ibodova Sabrina Erkin qizi O‘zbekiston-Finlandiya pedagogika instituti talabasi Erdanov Fazliddin Faxritdinovich O‘zbekiston-Finlandiya pedagogika instituti o‘qituvchisi Eshkobilova M.E Associate professor of Samarkand State Medical University 05 05 2025 2025 4 4 10 16 https://creativecommons.org/licenses/by/4.0 This work is licensed under a Creative Commons Attribution 4.0 International License.

This article presents the results of research on the creation of chemical sensors and alarms that sensitively and selectively detect methane gas in order to ensure explosion and fire safety at industrial and residential facilities. In the course of the research, highly sensitive, selective and stable devices for the detection of methane were developed on the basis of thermocatalytic and semiconductor sensors. The direct proportional relationship between the methane concentration and the sensor signal, as well as the high selectivity of the developed TKS-1 sensor with respect to H₂ and CO gases, were proved experimentally. The sensitivity, speed of response, stability and temperature-dependent error levels of the sensors were also studied, and the possibility of detecting methane concentrations in the range of 0.1–5.0 % was created.

В статье представлены результаты исследований по созданию химических сенсоров и детекторов, чувствительных и селективных для обнаружения газа метана, для обеспечения взрывопожаробезопасности на промышленных и жилых объектах. В ходе исследований были разработаны высокочувствительные, селективные и стабильные приборы для определения метана на основе термокаталитических и полупроводниковых сенсоров. Экспериментально доказана правильная пропорциональная зависимость между концентрацией метана и сигналом сенсора, а также высокая селективность созданного сенсора ТКС-1 по отношению к газам H₂ и CO. Также были изучены чувствительность, скорость, стабильность и зависящие от температуры уровни погрешности датчиков, а также создана возможность обнаружения концентраций метана в диапазоне 0,1–5,0%.

Mazkur maqolada sanoat va uy-joy ob‘ektlarida portlash va yong‘in xavfsizligini ta‘minlashda metan gazini sezgir va selektiv aniqlovchi kimyoviy sensorlar va signalizatorlar yaratish bo‘yicha olib borilgan tadqiqot natijalari yoritilgan. Tadqiqot davomida termokatalitik va yarim o‘tkazgichli sensorlar asosida metan uchun yuqori sezuvchanlikka ega, selektiv va barqaror qurilmalar ishlab chiqildi. Metan konsentratsiyasi va sensor signali orasidagi to‘g‘ri proporsional bog‘lanish, yaratilgan TKS-1 sensorining H₂ va CO gazlariga nisbatan yuqori selektivligi tajriba orqali isbotlandi. Shuningdek, sensorlarning sezgirlik, tezkorlik, barqarorlik va haroratga bog‘liq xatolik darajalari o‘rganildi hamda metan konsentratsiyasini 0,1–5,0 % oralig‘ida aniqlash imkoniyati yaratildi.

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