BLADE TIP CLEARANCE MEASUREMENT SENSOR AND METHOD FOR GAS TURBINE ENGINES

摘要

PROBLEM TO BE SOLVED: To provide a sensor and a method for measuring blade tip clearance for a gas turbine engine.;SOLUTION: An electromagnetic field sensor assembly 100 for blade tip clearance measurement in the gas turbine engine is disclosed. The electromagnetic field sensor assembly 100 includes ceramic sensor bodies 140a and 140b; a multi-layered wire coil 144a and 144b wound about a distal end portion of the sensor bodies 140a and 140b for producing an electromagnetic field; a ceramic well 130 enclosing the sensor bodies 140a and 140b and the coil; and a metallic housing surrounding the well 130 and having an open distal end.;COPYRIGHT: (C)2010,JPO&INPIT