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Assessment of the Automation Algorithm for TDR Bridge - Ohio ...

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“Dry Scour”<br />

Dry scour depth by <strong>TDR</strong> (cm)<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

Dry scour depth by <strong>TDR</strong><br />

Linear Fit <strong>of</strong> Dry scour depth by <strong>TDR</strong><br />

Equation<br />

Weight<br />

Residual Sum<br />

<strong>of</strong> Squares<br />

Adj. R-Square<br />

y = a + b*x<br />

No Weighting<br />

24.13911<br />

Relative voltage(V)<br />

0 5 10 15 20 25 30 35<br />

Dry scour depth by ruler (cm)<br />

0.98586<br />

1.2<br />

0.6<br />

0.0<br />

-0.6<br />

-1.2<br />

Value Standard Error<br />

Dry scour depth Intercept 0 --<br />

Dry scour depth Slope 1.08463 0.05801<br />

Pure air<br />

Increase thickness <strong>of</strong> wet sand layer<br />

Air/wet sand interface<br />

0 3 6<br />

Scaled distance(m)<br />

Zoom in View<br />

Pure wet sand<br />

Dry scour wave<strong>for</strong>ms<br />

Dry scour depth by <strong>TDR</strong><br />

68

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