Loose material quantity determination method in which a vibration pulse is induced at one side of the container and the vibration, modified by the amount of material, is measured at the other side of the container

摘要

Method for determining the quantity of loose material in a container, whereby a vibration pulse is applied at one end of a material containing space (12) and at the other end of the space induced vibration in a the material (11) is measured. The quantity of material is determined by a comparison of the applied vibration pulse and the measured vibration. The invention also relates to a corresponding device that has a measurement chamber with first (14) and second (16) walls or plates, typically of a stainless steel sheet, with attached piezo-actuators (24, 26), one for providing a vibration impulse and the other for detecting vibrations