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User:Crecasens

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== Vibrations ==

Radar technology can also be used to make non contact remote measurements of building vibrations with high precision level. This is a very interesting application on the construction area.<br>

This is a very interesting application on the construction area.<br>  IMPORTANT: An special software has been developed to this specific application and cannot be done with IGEP RADAR LAMBDA radar application demo. If you want to use this feature you must contact with&nbsp; [mailto:radar@iseebcn.com radar support] and we will study your case and make you an offerfor an special software.<br>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [[Image:AVE BRIDGE SET UP-Bs.jpg]]

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Measurements set up: The radar IGEP RADAR LAMBDA eith special software is placed on the ground facing the top of the viaduct at a distance of 15m<br>   

The next figure show the graphic obtained at the time the train was passing over the bridge. The graphic represents the relative position of the top of the viaduct over the ground. Yes, the structure moves 2mm, will you take the next high speed train? Do not worry this is normal and you do not have to worry about it, this vibration response has a normal profile. The advantage of this kind of measurements is that tdepending on the vibration wave profile engineers can detect structure problems, in the same way a doctor can check if your hearth is OK by lookintg at an EKG.<br>

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[[Image:AVEMESURA-3-GRID-POINTS.jpg]]

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vibration wave graph obtained on the measurement. It can be clearly shown the high precision of the measurement<br>  Y Axis: Relative movement between viaduct top and ground in millimeters X Axis. Time in seconds We can see from the graph that the radar technology has a precision better than 50 micrometers    

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [[Image:AVEMESURA-3-Bs.jpg]]

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Carles Recasens

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