Determining density of homogeneous material and surface density distribution of inhomogeneous material

摘要

The method compares the quality of the transmitted ultrasound (7) with the received ultrasound, reflected (11) at the material. The amplitude of the ultrasound serves as the characteristic value for the comparison of the quality of the transmitted to the received ultrasound. The intensity of the ultrasound serves as the characteristic value for the comparison of the quality of the transmitted to the received ultrasound. The system for carrying out the method includes at least one ultrasonic transmitting element (6) and at least one receiving element (12). The two elements are ultrasonic linear arrays.