Apparatus and methods for interrogating smart structure sensors.

摘要

Apparatus for contactless interrogation of a sensor, the apparatus having coil means for magnetically coupling signals across a gap between a sensing circuit having a sense coil and an interrogation circuit having an exciter coil connectable to a variable frequency supply; the exciter coil conducting current induced by sense coil current related to the sensor output; and control means for determining the sensor output based on the exciter coil current compensated for the gap.