Automated volume measurement for weihts using acoustic volumeter

M. Ueki, T. Kobata, K. Ueda and A. Ooiwa

Abstract

An automated method using an acoustic volumeter to measure the volume of weights mass ranging from 1 g to 100 g is described. The automated system consists of a manipulator of three-axis motion, a container lifting mechanism, a stationary weight magazine with 30 weights positions, a control unit, a personal computer and an acoustic volumeter. The acoustic volumeter with the weight exchanging system enables to perform fully-automated volume measurements. The reliability of the automated acoustic volumeter is experimentally examined, and the measurement uncertainty of the volume of the small mass weights is evaluated. Combined standard uncertainty is estimated to be 0.0021 cm³ in case of volume measurement of a 100 g weight, whose nominal volume is 12.5 cm³. It is confirmed that the automated acoustic volumeter can be applied to volume measurements of small weights with sufficient accuracy for the OIML class E₁.

Keywords

acoustic volumeter, weight, volume, automated measurement

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IMEKO-TC3-2007-016u.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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