Frequency converter of gas concentration in transistor structure with negative resistance

Autor:	A.V. Osadchuk, V.S. Osadchuk, I.A. Osadchuk, O.O. Seletska
Rok vydání:	2017
Předmět:	General Medicine
Zdroj:	Radiotekhnika. :195-202
ISSN:	2786-5525 0485-8972
Popis:	A frequency converter of gas concentration with a resistive element MEMC MiCS 6814, which determines the concentration of combustible gases, is presented. The dependences of the active and reactive components of the impedance of the gas concentration converter on the supply and control voltages and on the change in the gas concentration have been calculated and experimentally confirmed. Analytical expressions for the transformation function and the sensitivity equation are obtained. The sensitivity of the converter varies from 645 to 175 Hz / ppm in the concentration range from 1 to 1500 ppm, and decreases significantly with an increase in the propane concentration from 1500 ppm to 9000 ppm, and is from 175 Hz / ppm to 48 Hz / ppm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7daf5a496399306f36f40161a9c90732 https://doi.org/10.30837/rt.2017.4.191.20 Zobrazit plný text záznamu