Abstract: A wireless sensing module with extended service life containing at least one sensor of a physical parameter, a data acquisition hardware acquiring output electrical signals from at least one sensor and converting it into digital measurement data, a microcontroller, a non-volatile memory, at least one transceiver for wireless communication with external wireless devices, at least one battery, including at least one re-chargeable battery, at least one energy harvesting device, a power management circuit, and at least one antenna. All components of the wireless sensing module are mounted on a printed circuit board and placed into an enclosure providing mechanical, chemical, electrical and environmental protection. The wireless sensing modules can be used in different applications, including long-term condition monitoring of structures.

Abstract: Systems in accordance with the present invention can include a tip contactable with a media, the media including a servo pattern, an inhibiting matrix having a plurality of cells disposed within the inhibiting matrix, wherein the servo pattern is defined at least partially by the plurality of cells. A data portion amongst which the servo pattern is disposed can further be defined within the inhibiting matrix. Alternatively, the data portion can include a continuous media. A tip including a conductive contact surface can be positioned in contact or near-contact with the plurality of cells, and a voltage potential can be applied across the media from the tip. A resistance of the at least one cell is then detectable. In an embodiment, the resistance of the at least one cell can be lower than a data indicium within the continuous media or within a patterned media, thereby identifying the cell as a servo mark.