METHOD FOR DEGASSING A COUPLING LIQUID FOR A PRESSURE WAVE GENERATOR USING A COUPLING LIQUID BY CHEMICAL PROCESS

摘要

A method for degassing a coupling liquid. This method is characterized in that it comprises the addition to said coupling liquid of at least one chemical substance which readily gas in an amount sufficient to substantially completely absorbing said gas. This chemical is preferably an alkali metal sulfite or alkaline earth metal. The invention provides pressure waves of pressure values ​​greater than those obtained by a conventional physical degassing.