Abstract
The handling techniques of liquid (storage and transfer etc.) under micro-gravity condition are a key technology to construct an infrastructure of space transportation system. Especially, it is very important to make a measurement for the amount of liquid under micro-gravity condition and, for example, to know how much a fuel or cryogen is left in a tank . However, it is very difficult to measure the liquid amount in space because a liquid-gas system is not easily separated, rather mixed up under micro-gravity condition . In order to make an effective and low cost measurement system; the Helmholtz resonance is applied in this study . Water is used as test liquid and two different types of experiment are done in this study . One is without a liquid stabilization technique and the other is with a liquid stabilization technique that cylindrical sheets of metal mesh are set in the experimental cell. It is confirmed that the application of the Helmholtz resonance with the liquid stabilization technique is effective means to measure the amount of liquid under micro gravity condition.
