tech
Engineers increasingly embed sensors inside bridges and buildings to watch for hidden damage before it turns dangerous.
Structural health monitoring sensors detect early cracks, strain, or abnormal movement before they become visible or dangerous. Strain gauges measure tiny deformations while accelerometers track vibration patterns revealing loosening joints or developing cracks, letting engineers spot problems long before a routine visual inspection would.
Charging electric cars over a bridge is an unrelated wireless-charging concept, not monitoring. Broadcasting radio music is entertainment, unrelated to assessing a structure's physical condition.
This lets engineers move beyond periodic manual inspections, which can miss problems between visits, toward scheduling targeted repairs based on real ongoing data about how a structure is being stressed.
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