Self-powered sensing system for the monitoring of quasi-static structural response

A self-powered sensing system, comprising:

• an energy concentrator having a member configured to detect a variation of a physical stimuli and change shape in response to the variation of the physical stimuli, where the variation occurs at a frequency less than one Hertz;
• a transducer coupled to the member of the energy concentrator and generates a voltage in response to the change in shape of the member;
• and
• an event logging circuit configured to receive the voltage from the transducer and operates to log the voltage in a non-volatile memory
• wherein the member of the energy concentrator is defined as a strip having two opposing planar surfaces substantially wider than remaining surfaces, where the strip is constrained by a first wall disposed adjacent to one planar surface of the strip and a second wall disposed adjacent to other planar surface of the strip.