Patents Assigned to and Space Admimistation
  • In Situ Health Monitoring of Piezoelectric Sensors
    Publication number: 20100088067
    Abstract: An in situ health monitoring apparatus may include an exciter circuit that applies a pulse to a piezoelectric transducer and a data processing system that determines the piezoelectric transducer's dynamic response to the first pulse. The dynamic response can be used to evaluate the operating range, health, and as-mounted resonance frequency of the transducer, as well as the strength of a coupling between the transducer and a structure and the health of the structure.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 8, 2010
    Applicants: and Space Admimistation
    Inventors: Scott L. Jensen, George J. Drouant