Sensor for measuring cryogenic temperatures based on a transistor-sensitive element

  • M. M. Murshudli National Aerospace Agency, Baku, Azerbaijan
  • A. M. Alieva National Aerospace Agency, Baku, Azerbaijan
  • M. I. Musaev National Aerospace Agency, Baku, Azerbaijan
Keywords: gas analyzer, gas-sensitive element, self-oscillations, nitrogen oxides, gas-sensitive transistor

Abstract

The possibility of creating a gas analyzer based on an n-p-n bipolar transistor operating in the self-oscillation mode is considered. Within the operating temperature range from –20 to +50 °C and for NOx concentrations of 5–500 ppm, the dependence of oscillation frequency on concentration is linear. The detection capability is at the level of 3–5 ppm. The gas analyzer allows measurement of nitrogen oxide concentration within a few seconds. Structurally, it is designed as a compact device with dimensions of 150×85×25 mm.

Published
2005-02-28
How to Cite
Murshudli, M. M., Alieva, A. M., & Musaev, M. I. (2005). Sensor for measuring cryogenic temperatures based on a transistor-sensitive element. Technology and Design in Electronic Equipment, (1), 28-30. Retrieved from https://www.tkea.com.ua/index.php/journal/article/view/TKEA2005.1.28
Issue
No. 1 (2005): Tekhnologiya i konstruirovanie v elektronnoi apparature
Section
Articles

Copyright (c) 2005 M. M. Murshudli, A. M. Alieva, M. I. Musaev

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