Liquid level sensing apparatus for long-distance automatically enhancing signal-to-noise ratio

Abstract

A liquid level sensing apparatus () for long-distance automatically enhancing a signal-to-noise ratio is applied to a measured target (). The liquid level sensing apparatus () includes a sensing module (), a long-distance command receiving module () and at least a brake module (). The sensing module () transmits a sensing signal () to the measured target (). The sensing signal () touches the measured target () to reflect back a reflected signal (). The sensing module () receives the reflected signal () to measure the signal-to-noise ratio and to measure a height of the measured target (). The long-distance command receiving module () is electrically connected to the sensing module (). The long-distance command receiving module () receives a long-distance command signal (). The brake module () is mechanically connected to the sensing module ().