The LVDT is an electrical transformator used for measuring linear displacements. The pictures below on the left side show the position of a sensor and its corresponding thermocouple. The graphs on the right show the displacement and the referring temperature.
The LVDT is installed across a crack detected on a vault of the roof for the monitoring of the east wall out-of-plane motion. The sensor is protected with a specific box and connected through a cable to the acquisition system.
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