ULTRASOUND TRANSDUCER WITH ACOUSTIC ABSORBER STRUCTURE

• Main Authors: ADAM, Joseph Michael, BIRCUMSHAW, Brian Lee, FREDRICK, Daniela Marisa, BAUMGARTNER, Charles
• Format: Patent
• Language: English; French
• Published: 27.05.2021
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; SOUND-PRODUCING DEVICES; TESTING; TRANSPORTING

Described are acoustic absorber materials with high acoustic attenuation and high thermal conductivity comprising an inorganic, porous foam and an absorbing material within at least a portion of the pores of the foam, ultrasound transducers and devices including the same, as well as methods of making the materials. L'invention concerne des matériaux absorbants acoustiques ayant une atténuation acoustique élevée et une conductivité thermique élevée comprenant une une mousse poreuse inorganique et un matériau absorbant à l'intérieur d'au moins une partie des pores de la mousse, des transducteurs ultrasonores et des dispositifs comprenant ceux-ci, ainsi que des procédés de fabrication des matériaux.