초록 ▼

A level measuring system for measuring the level of a fluid in a tank employing tubes through which gas is passed extending to different levels in the fluid, whereby the level may be measured by comparing the differences in pressure necessary to release bubbles from the tubes. The ends of each of th

A level measuring system for measuring the level of a fluid in a tank employing tubes through which gas is passed extending to different levels in the fluid, whereby the level may be measured by comparing the differences in pressure necessary to release bubbles from the tubes. The ends of each of the tubes are bent at substantially a right angle, with the tips cut off at an angle so that the gas/liquid interface of the bubbles are at a more constant depth, and the bubbles are prevented from sagging.

대표청구항 ▼

In a purging bubbler tube measuring system for determining the level of a fluid in a tank, employing at least two bubbler tubes through which gas is periodically passed, said tubes extending to different levels in or above said fluid, the improvement comprising bending the end of each of said tubes

In a purging bubbler tube measuring system for determining the level of a fluid in a tank, employing at least two bubbler tubes through which gas is periodically passed, said tubes extending to different levels in or above said fluid, the improvement comprising bending the end of each of said tubes below the fluid level at substantially a right angle, forming a horizontal tube section in each of the tubes long enough such that the interface of the bubbles and the fluid are kept at a constant depth even though they should back up in the horizontal section of the tubes; and cutting off the tips of the bent tubes at an angle such that the bubbles will rest on the tip of the tubes and not sag over the end of the tube tips.