Abstract: A system for monitoring the displacement of turbine blades that includes a turbine blade with a cutting tooth and one or more sensor wires, each sensor wire including a severable portion, that become severed by the cutting tooth as turbine blade displacement occurs. The sensor wires may be embedded in a honeycomb, which may be an area of abradable material attached to turbine shrouds. The sensor wires may include a plurality of radial sensor wires embedded in the honeycomb at varying predetermined radial distances from a turbine rotor. The sensor wires also may include a plurality of axial sensor wires embedded in the honeycomb at varying predetermined axial locations along the length of the honeycomb.
Type:
Grant
Filed:
June 13, 2006
Date of Patent:
March 31, 2009
Assignee:
General Electric Company
Inventors:
Tagir R. Nigmatulin, Ariel Caesar-Prepena Jacala, Charles A. Bulgrin