Apparatus and method for non-destructive detection of fan blade electrical isolation

摘要

An apparatus and method for detecting a short in a blade of a gas turbine engine, the apparatus including: a first plate configured to form a first capacitor with the protective sheath when the apparatus is located proximate to the blade; a second plate configured to form another capacitor with a portion of the airfoil when the apparatus is located proximate to the blade; and a voltage source electrically connected to the first plate and the second plate.