Open AccessExperimental study for choosing an active substance in a microcracks detection system in the turbine blade
Author(s) -
М. С. Гринкруг,
M. Ballı,
Julia Ilyinichna Tkacheva,
Nikita A. Novgorodov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1111/1/012020
Subject(s) - signal (programming language) , current (fluid) , turbine blade , work (physics) , blade (archaeology) , materials science , voltage , gas turbines , active load , turbine , flow (mathematics) , acoustics , mechanics , mechanical engineering , automotive engineering , engineering , computer science , electrical engineering , physics , transistor , programming language
In this work, an experiment was carried out that allows choosing an active substance in the system for early detection of microcracks in the blades of gas turbine engines. The aim of the work is to compare several active substances by measuring the signal generated by each of them at the same temperatures and concentrations of the active substance. A current signal is obtained by applying a voltage between two electrodes placed in a stream of hot gas. The strength of the electric current arising between the electrodes in the hot gas flow depends on the ionization of the gas caused by the active substance. The current signal is the main criterion for choosing an active substance. A study was also carried out on the effect of gas temperature on the strength of the signal caused by the active substance. This experiment is one of the main stages in the creation of a system for detecting microcracks in gas turbine blades.