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Here are the results of the comparison of Arenal’s ultrasonic density measurement vs radioactive density measurement in a live application. (Dredging application at a hydro powerplant in France). The Arenal system was placed over a 100 meter away from the radioactive sensor. You see this delay in the graph. Also note that this was a '2nd' generation system. Our ‘3rd’ generation system is even more accurate.

The graph shows how dynamic and accurate the Arenal ultrasonic density measurement is.

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