Direct force measurement system of IIS consists of EM sensor and PowerEM-read out units. EM sensor and PowerEM produce magnetic field to steel bar, single strand or multi-strands, then measure the force directly according to the relative permeability. With the Multiplexer a PowerEM read-out units can measure the force at 16 nodes automatically.
With more 10 years experiences on structural health monitoring to bridges, IIS' Information technology has being applied to many strucutures in the world.
