音響信号を利用した管の長さ測定　管内空気柱の共振周波数検出

DOI 機関リポジトリ HANDLE Web Site Web Site 被引用文献2件

書誌事項

タイトル別名
  • A New Method of Measuring Length of Pipe by Means of Sound Signals. Detecting Resonant Frequency of Air Column in Pipe.
  • オンキョウ シンゴウ オ リヨウシタ カン ノ ナガサ ソクテイ カンナイ ク

この論文をさがす

抄録

This research paper presents a new method of measuring the length of a pipe by using sound frequency. A sweep signal is radiated from the speaker toward the inside of the pipe. The sound pressure at the resonant frequency of the air column in the pipe indicates the largest value. The length of the pipe to be measured corresponds well to the resonant frequency. The phase. locked loop device is adopted to obtain the stabilities of resonation and frequency. A frequency counter with a reciprocal mode is adopted for higher resolution within a shorter time period because of low frequency.

収録刊行物

被引用文献 (2)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ