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Battelle Ultrasonic Liquid Level Monitor. Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 2 This demonstration.

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Presentation on theme: "Battelle Ultrasonic Liquid Level Monitor. Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 2 This demonstration."— Presentation transcript:

1 Battelle Ultrasonic Liquid Level Monitor

2 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 2 This demonstration illustrates the Corner Reflection approach to tank level measurement via ultrasound. The displays that follow contain plots derived from data collected while emptying a tank of water. Two ultrasound sensors were used to generate the liquid level data. Both sensors were mounted to the lower outside of the tank, one at a 60° angle from the horizontal, the other at a 45° angle.

3 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 3 The upper section of each display portrays data from the 60° sensor The lower section of each display portrays data from the 45° sensor

4 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 4 The plots on the left-hand portion of each display portray the tank with: The fill level shaded in blue, The sound zone from the 60° sensor shaded in green, and The sound zone from the 45° sensor shaded in red.

5 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 5 The plots in the upper right-hand portion of each display show signal data from the 60° sensor. The plots in the lower right-hand portion of each display show signal data from the 45° sensor.

6 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 6 Actual ultrasound signals with the intersections of the sound zones and the wall of the tank highlighted. These zones are where strong corner shots will occur.

7 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 7 The correspondence between the colored shaded regions and the sections of the tank wall intersected by the sound zones.

8 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 8 Enlarged views of signals as they pass through sound zones (highlighted) on tank wall.

9 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 9 Note the strong corner shot signal that occurs when the fill level passes through the second sound zone along the tank wall.

10 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 10 The enlarged views of the signal emphasize the dramatic pulse from the corner shot.

11 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 11 Sequence of displays as tank empties from 24 to 2.5.

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56 Process and Measurement Technology Battelle Ultrasonic Liquid Level Monitor Demonstration Battelle 56 Contact: Walter C. Weimer, Manager Process and Measurement Technology Battelle, Pacific Northwest Division (509) Technical Contacts: Richard (509) Scott (509) Don (509)


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