Influence of polymolecular adsorption of water on parameters of acoustic electronic devices

Influence of polymolecular adsorption on change of speed and attenuation of surface acoustic waves in system layer of adsorbed water - a substrate of niobates lithium is investigated. Values of temperature factor of time of a delay are found in the acoustic path loaded with a layer of adsorbed water. It is shown, that at presence adsorbed layer the temperature factor of time of delay of the given system decreases with growth of a thickness and there passes zero value. In system "the adsorbed water - niobates lithium" gives the chance to define occurrence of zero value of temperature factor of time of a delay precisely a thickness adsorbed layer and to construct an isotherm of adsorption of steam of water on surface of niobates lithium.