Temperature of retarded flow was measured by four four-zone Chromel-Copel thermocouples. Static pressure of flow at the inlet to the rotor was measured at four points through holes of diameter 1 mm in the turbine housing. Total pressure at the outlet of the turbine nozzle was measured by four-zone Pitot tubes, fixed in a turning ring which ensured the possibility of carrying out of measurements within limits of two stages of the turbine nozzle. At the rotor outlet there was located a special measuring section, in which we installed two five-zone Chromel-Copel thermocouple, and two five-zone combined Pitot tubes for measurement of total pressure, numbers λ and angles of flow.
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