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Battelle Ultrasonic Liquid Level Monitor PowerPoint PPT Presentation


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Battelle Ultrasonic Liquid Level Monitor. 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.

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Battelle Ultrasonic Liquid Level Monitor

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Battelle ultrasonic liquid level monitor

Battelle

Ultrasonic Liquid Level Monitor


Battelle ultrasonic liquid level monitor

  • 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.

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Battelle ultrasonic liquid level monitor

The upper section of each display portrays data from the 60° sensor

The lower section of each display portrays data from the 45° sensor

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Battelle ultrasonic liquid level monitor

  • 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.

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Battelle ultrasonic liquid level monitor

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.

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Battelle ultrasonic liquid level monitor

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.

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Battelle ultrasonic liquid level monitor

The correspondence between the colored shaded regions and the sections of the tank wall intersected by the sound zones.

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Enlarged views of signals as they pass through sound zones (highlighted) on tank wall.

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Note the strong “corner shot” signal that occurs when the fill level passes through the second sound zone along the tank wall.

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Battelle ultrasonic liquid level monitor

The enlarged views of the signal emphasize the dramatic pulse from the “corner shot”.

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Battelle ultrasonic liquid level monitor

Sequence of displays

as tank empties from 24” to 2.5”.

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  • Contact:

  • Walter C. Weimer, Manager

  • Process and Measurement Technology

  • Battelle, Pacific Northwest Division

  • [email protected]

  • (509) 375-6922

  • Technical Contacts:

  • Richard [email protected]

  • (509) 375-4546

  • Scott [email protected]

  • (509) 375-3604

  • Don [email protected]

  • (509) 375-4365

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