Радіовимірювальний прилади визначення концентрації горючих газів

Abstract

Thesis is devoted to the analysis of various sensors gas and basic principles of their work. The challenge was put to this work, you can convert gas consumption in gas supply systems in frequency output signal that provides high noise immunity, and hence highly accurate flow measurement. Ra¬diovymiryuvalni transducers with frequency output signal having a number of advantages, namely combined as simplicity and universality that are inherent in analog devices, as well as the accuracy and noise immunity, typical for couples with code output. These converters have a high sensitivity to the measured parameters, relatively low weight, dimensions. Own informational, structural and technological compatibility with microelectronic means of information processing, which ensures their superiority over existing converters costs. During the execution of the master's thesis was an analysis of sensors and their operating principles. Also in the course of the economic part of the master's thesis on the basis of calculations it was shown that the introduction of the production of transducers concentration of flammable gas is cost-effective for both producer and consumer benefit. During the execution of this section on health was considered such a contingency as technical solutions for the hygiene and health regulations, the calculation of the lower and upper concentration limits flash fire explosion dangerous mixture.