Радіоінформаційний сенсор газу з частотним виходом на основі транзисторної структури з від’ємним опором

Abstract

In this thesis work presents research radio-information sensor with frequency output of gas-based transistor structure with negative resistance. Also, an analysis of the current state of gas concentration converters that are based on different methods. In the theoretical part of the classification sensors, gas, and gas sensors described semiconductor resistive type, based ionnoselektyvnyh polvyh transistors, diodes and field-effect transistors. The calculation of the current-voltage characteristics of the converter. In the experimental part of the thesis are flowcharts experimental units and experimental results in removal of the current-voltage characteristics and other dependencies. Developed microprocessor air quality monitoring at gas-filling stations radioinformatsiynoho based gas sensor with frequency output based transistor structure with negative resistance. The economic part was defined cost, economic impact and payback of the device. Also consider life safety.