公开(公告)号：US20170345405A1

公开(公告)日：2017-11-30

申请号：US15263043

申请日：2016-09-12

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Yong Tae Kim ,  Bong Young AHN

IPC: G10K11/162

CPC classification number: G10K11/162

Abstract: The present disclosure relates to a temperature controllable anechoic sound absorber using two different kinds of scattering particles and a method for manufacturing the same. More specifically, a temperature rise controllable anechoic sound absorber using two different kinds of scattering particles, which absorbs a sound wave which is transmitted through a medium, includes a composite material which induces a scattering process of the sound wave and has a first scattering particle and a second scattering particle; and a base material which fills a base of the absorber during the scattering process of the sound wave. Herein, volume content ratios of the base material, the first scattering particle, and the second scattering particles are adjusted so that a heat capacity of the absorber is within a set heat capacity range.