Liquid Weighing Method on Ships Using a Hilbert Transformer

Abstract

In general, it is known that highly accurate weight measurement is not possible when the measuring instrument or the object to be measured is shaking. The weight is a DC component, and the AC component is noise. Hilbert transformer can estimate the frequency corresponding to the noise, but contains error. In this paper, we show a method for accurately measuring the weight of a liquid by correcting the error caused by the Hilbert transformer.