Liquid detector

摘要

A detector element is provided which is responsive to contact with a liquid to be detected to assume at least one of dissolution, softening, shrinkage and absorption conditions to result in a change in its apparent specific gravity. Upon change in the apparent specific gravity of the detector element, a rotation or movement of the element itself or another body or a cut-off of the detector element by dissolution occurs to cause electrical, mechanical or fluidic signal generating means to operate for providing an indication of the liquid to be detected.