Patent ID: 9217730
Filing Date: 2015-12-22
Classification: G01M,G01N

Abstract:
1. A structural health monitoring system, comprising: an active damage detection module operable to transmit interrogation signals for interrogating a structure, the active damage detection module comprising a signal transmitter operable to transmit one or more of the interrogation signals at a first frequency to a sensor network disposed on the structure; and a passive monitoring module operable to monitor the structure, the passive monitoring module in electrical communication with the signal transmitter of the active damage detection module, the passive monitoring module comprising a first signal filter operable to receive the interrogation signals from the signal transmitter and response signals generated by the sensor network, to attenuate the received interrogation signals and the response signals at approximately the first frequency, and to pass un-attenuated response signals at approximately a second frequency that is different from the first frequency to a passive data acquisition module connected to the first signal filter; wherein the active damage detection module further comprises: a second signal filter operable to receive the interrogation signals from the signal transmitter and the response signals generated by the sensor network, to attenuate the response signals at approximately the second frequency, and to pass the received interrogation signals and un-attenuated response signals at approximately the first frequency to an active data acquisition module connected to the second signal filter.