DEVICE FOR MEASUREMENT OF EROSIVE WEAR OF STEAM TURBINE BLADES Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: device uses an endoscope with a monitor, pulsed light source with a light or shadow band forming block, and a synchronizing mechanism, whose input is connected to the transmitter and the output - to the monitor, for measurement of erosive wear use is made of a data processing system connected to the output of the synchronizing mechanism and monitor, and a delay unit connected to the output of the synchronizing mechanism, the delay unit output is connected to the pulsed light source. The synchronizing mechanism transmitter is made as a source and receiver of luminous radiation, mechanically linked with the endoscope and located on one or both sides of the turbine blades. EFFECT: provision of simultaneous automatic measurement in service of erosive wear of blade leading edges and blade-section chord decreasing as a result of wear, enhanced reliability and service life of turbine blading. 7 dwg