ADPを使用した圧電形標準マイクロホン
スポンサーリンク
概要
- 論文の詳細を見る
As the acoustical standard microphone, the condenser microphone MR-103 had been developed, and the system of acoustical standards in Japan has been established for audible range in air. But there has been no suitable microphone, to be used as the atandard microphone, in the range of higher frequencies, especially in water. The microphone discussed in this paper has crystal plates of the ammonium dihydrogen phosphate as the active elememt, and is prove most suitable fot thestandard microphone considering from its characteristics discussed in detail.
- 社団法人日本音響学会の論文
- 1956-09-30