DEVICE FOR DETERMINING THE QUANTITY OF LIQUID, IN PARTICULAR OF WATER OR OF TRANSPIRATION EXCHANGED BETWEEN A SYSTEM AND ITS ENVIRONMENT

摘要

The present invention relates to a device making it possible to determine the quantity of liquid, in particular water or perspiration, exchanged between a system, in particular a living organism, and its environment. Typically, said device comprises a flat element made of a material capable of absorbing said liquid, said flat element comprising: - means for sealingly fixing to said system; - an absorption zone capable of coming into contact with said liquid; and a reactive zone which comprises microcapsules / microspheres, said reactive zone being capable of absorbing said liquid originating from said absorption zone, said microcapsules / microspheres comprise a shell which is soluble or dispersible in said liquid, said shell and said dye have different colors, said shell being hollow and surrounding a dye soluble or dispersible in said liquid and possibly capable of changing color in contact with said liquid and / or said shell is full or possibly hollow and contains a dye soluble or dispersible in said liquid and suitable to change color on contact with said liquid and said reactive zone is covered with a protective film which is impermeable to said liquid and transparent to light.