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

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Test Results<br />

Fine Sand<br />

Normalized dielectric constant<br />

1.0<br />

0.9<br />

0.8<br />

0.7<br />

0.6<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

0.1<br />

0.0<br />

Equation y = a + b*x<br />

Adj. R-Squ 0.99597<br />

Value Standard Error<br />

Concatenat Intercept 1.00376 0.00319<br />

Concatenat Slope -0.434 0.00531<br />

Fine sand in tap water<br />

Fine sand in 250ppm NaCl solution<br />

Fine sand in 500ppm NaCl solution<br />

Fine sand in 750ppm NaCl solution<br />

Desing equation <strong>for</strong> fine sand<br />

0.0 0.2 0.4 0.6 0.8 1.0<br />

Normalized thickness <strong>of</strong> sediment layer<br />

Normalized electrical conductivity<br />

1.1<br />

1.0<br />

0.9<br />

0.8<br />

0.7<br />

0.6<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

0.1<br />

0.0<br />

Equation y = a + b*<br />

Adj. R-Sq 0.99007<br />

Value Standard<br />

Concaten Intercept 1.02032 0.0078<br />

Concaten Slope -0.66686 0.01262<br />

Fine sand in tap water<br />

Fine sand in 250ppm NaCl solution<br />

Fine sand in 500ppm NaCl solution<br />

Fine sand in 750ppm NaCl solution<br />

Design equation <strong>for</strong> fine sand<br />

Normalized <strong>TDR</strong> measurements <strong>for</strong> fine sand<br />

0.0 0.2 0.4 0.6 0.8 1.0<br />

Normalized thickness <strong>of</strong> sediment layer<br />

54

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