Electromagnetic sensors

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Electromagnetic sensors exploit the magnetostrictive effect of certain ferromagnetic materials. In a ferromagnetic material, magnetostriction results in anisotropic deformation when subjected to a magnetic field.

CorroVolta

Corrosion sensor in reinforced concrete.


HydraCap

In-situ measurement of the humidity gradient inside the concrete.

ThermoOhmRR

Platinum thermometer resistant to radiation.

It is therefore possible to measure different physical quantities by measuring the variation of the magnetic permeability. These sensors can sometimes be an alternative to conventional sensors.



HydraPter

Concrete water content sensor by TDR: HydraPter

Characteristics :

  • Water content measurement in fresh and hard concrete
  • Can follow the evolution of the water content with time