Measuring the length of a column of fluid in a tube

Details Measuring the length of a column of fluid in a tube Measuring the length of a column of fluid in a tube

1991-12-03

1993-02-09

Arana, Louis

Measuring and testing

Vibration

By mechanical waves

73290V, G01N 924

Patent

active

051845121

ABSTRACT:
The length of a column of a gaseous or liquid substance or of a solid bar is determined by generating a standing wave of known frequency, wavelength and/or wave velocity in the column or in the bar. The wave frequency is varied until at least two consecutive maxima (antinodes), two consecutive minima (nodes) or a minimum following a maximum of the amplitude of the standing wave have been detected. The length of the column of medium at known frequency and wave velocity of the standing wave generated in that column is computed from the equation

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"11.Laufzeitverfahren", Werkstoffprufung mit Ultraschall, 1980, By J. Krauthkramer et al., pp. 265-267.
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"Besonderheiten der Fehlerortung bei Starkstromkabeln", pp. 127-130 (date unknown).

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