音響管を用いた新しい伝搬定数計測法の実用化に関する研究 : 多孔質材料の試料共振の抑制方法と応用計測を中心として

概要

論文の詳細を見る
Some improvements were tested about a new and simple measuring method using a sound tube for the propagation constant. At first, this new system consists of four parts so that the backed wall can be removed. It makes it easy to set and take off a test material. Moreover, in order to reduce the resonant vibration of the test material which caused to large measuring errors, the material was fixed to the backed wall by several nails. As a result, the smooth frequency characteristics in which the error deep dip is eliminated can be observed. In addition, using this system, measurements on granular material such as sand and small ballast could be performed, which could not be done by the ordinary method.
社団法人日本建築学会の論文
1998-01-30