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In addition to its flow- and level-metering technologies, D-Flow
offers methods for measuring speed of sound in the measured
media. A speed of sound device can be used for calibrating level
meters and media concentration calculations, for example alcohol
content in beer. The total uncertainty of the speed of sound
measurement depends more on mechanical tolerances than the actual
time measurement. The typical repeatability in air and water
is better than ± 0.01 and ± 0.1 m/s respectively. |
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