1 research outputs found
Wireless strain and temperature monitoring in reinforced concrete using Surface Acoustic Wave (SAW) sensors
Monitoring the health of civil engineering structures using implanted
deformation, temperature and corrosion sensors would further improve
maintenance and extend the service life of those structures. However, sensor
integration poses a number of problems, due to the presence of cables and
on-board electronics. Passive, wireless SAW sensors offer a very promising
solution, here. We used commercial SAW devices mounted on steel rebars to carry
out an initial feasibility study. Without cables or embedded electronics, we
were able to measure the deformation of a concrete beam subjected to bending
load. We were also able to measure the temperature continuously over a
three-week period