Patent attributes
Characteristics of a multi-layer structure are detected, such as for detecting mechanical and/or corrosive damage of the multi-layer structure. In an example embodiment, an integrated in-situ sensor device senses characteristics of a multi-layer structure during operation thereof. The device includes a mechanical coupler and a sensor circuit. The mechanical coupler couples layers of the multi-layer structure together via an opening traversing the multi-layer structure. The sensor circuit inserts into the opening with the mechanical coupler, and induces an electrical response in a portion of the multi-layer structure adjacent the opening. This induced electrical response is indicative of characteristics of the multi-layer structure, and is sensed to provide a signal characterizing characteristics of the multi-layer structure.
