News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back Measuring the average temperature of the turbo shaft engine gases using different types of sensors Sukhinets Zh.A. In this paper, we consider the methods for gas-turbine engines gas-temperature measurement using thermal and jet-acoustic sensors and calculating the average parameter for control signal of control systems and diagnostics. The temperature inside the combustion chamber is distributed very unevenly across the section and reaches 350 °C, necessitating the use of multiple temperature sensors and further parameters averaging. The control system can unnecessarily change the engine operation mode when understating the average temperature due to violations of the identity of the connection resistance of the thermocouple connections increasing the temperature of the gases exhausted, that can cause burning of the turbine blades. We propose a method for measuring the mean medium temperature with nonuniform temperature field and the device for its implementation using the twowire line to the measuring unit and the same type of standard thermistors (as temperature sensors) as the chain phasing elements, that would provide efficiency, ease of installation and maintenance, high reliability and maintainability. The unique device of averaging the gases temperature using thermocouples with increased speed and accuracy of production ACS control action to the engine, as well as simple to manufacture and reliable in operation circuit for measuring the frequency sensors average temperature, due to the absence of a computation unit. Key words: jet-acoustic detector; average temperature; turboshaft engine; thermocouple; frequency. Contacts: E-mail: gulin_tks@ugatu.ac.ru Pp. 71-79.