Beverages container pressure monitoring method

摘要

To determine the internal pressure in containers of beverages, in cans a pressure distortion is detected through an electrical current designed for polymonomers with additives such as ruthenium atoms to give a number of oxidation conditions. The extraction or feed of electrons and the application of a voltage gives a colour change, or there is a colour change without a voltage in a thin polyaniline film. Other aniline derivatives can be used to form polymers, colours and sequences. With corked bottles, a pressure sensor is used which reacts to pressure and gives an electric voltage to give colour changes which can be viewed in a window. The pressure receiver can be an adhesive film of polyvinylidene fluoride (PVF2), to interact with a conductive film of at least one polyaniline polymer derivative, to show when the pressurised container can be opened at the optimum temp. For cans at least one corrugated and pliable membrane is used to give proportional pressure measurements. For corked bottles, a piezo element such as of PVF2 is applied near the contents level.