Abstract: A system includes a conduit, a sensor system and a controller. The conduit may be associated with a structure, having a portion thereof disposed on a surface, and being disposed in a direction normal to the surface. The controller is in communication with the sensor component. When the sensor system is operable to detect when sediment on the surface and surrounding the structure is removed from an area around the structure, an initial length, li, of the conduit is disposed below the surface of the sediment on the surface and surrounding the structure at an initial time. When the sensor system is operable to detect when sediment is deposited around the structure, the initial length, li, of the conduit is disposed above the surface at the initial time.

Abstract: A system includes a first sensor, a second sensor and a processing portion. The first sensor can wirelessly transmit a first detected signal based on a detected parameter of a structure. The second sensor can wirelessly transmit a second detected signal based on the detected parameter of a second portion of the structure. The processing portion can wirelessly transfer energy to the first sensor and the second sensor. The processing portion is operable to wirelessly transfer electromagnetic energy to enable the first and the second sensors.

Abstract: A device is provided for monitoring strain and acoustic emission in an object. The device includes: a strain measurement portion operable to measure strain; an adhesive layer disposed on the strain measurement portion; and a peel-off mask disposed on the adhesive layer. In an example embodiment, the strain measurement portion includes a body, a transparent window portion, a strain measurement device and a signal processing portion. The body includes an attachment surface, wherein the adhesive layer is disposed on the attachment surface for attachment of the body to the object. The transparent window portion is arranged to enable viewing of a portion of the object through the body. The strain measurement device is disposed within the transparent window portion and is operable to generate a strain signal based on strain in the object. The signal processing portion is operable to generate a processed signal based on the strain signal.