• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1990 Fiscal Year Final Research Report Summary

Development of New Measuring Method of Accurate Displacement and Surface Roughness by using Sound Signal

Research Project

Project/Area Number 01550089
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械工作
Research InstitutionNiigata University

Principal Investigator

ICHIMIYA Ryoichi  Niigata University Faculty of Engineering, Department of Mechanical Engineering, Professor, 工学部, 教授 (10035595)

Project Period (FY) 1989 – 1990
KeywordsSound frequency / Displacement / Resonance / Surface roughness / Accurate measurement
Research Abstract

Sound generates when compressed air is blown onto an open-ended face of a small pipe whose one end is closed. The sound frequency generated in the pipe alter when the length of the air column of the pipe is changed. This phenomenon is applied in this research work as the displacement of the substance corresponds to the sound frequency generated in the pipe. The purpose of this research work is to develop and put to practical use a new method which is used to measure the displacement precisely.
Theoretical analyses of the sound generation by suing compressed air were introduced and the sounding frequency was calculated from the theoretical equation.
Experiments of the measuring displacement by using compressed air and a speaker were conducted under several sounding conditions. Experimental data were obtained to make practice of this method of the displacement.
A new method described in this paper combines the features of high accuracy, low cost,simple directions ,etc. This method makes it possible to measure the displacement with a unit length under lmum.
By using aboved mentioned principle, the surface roughness was measured by means of the sound frequency, however more research works are required to make practice of this method on the measuring roughness.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 坂本 秀一: "管内空気柱の音響周波数変化を利用した変位の精密測定(等価回路と流速分布による理論解析)" 日本機械学会論文集. 56. 435-441 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 坂本 秀一: "管内空気柱の音響周波数変化を利用した変位の精密測定(スピ-カと電気的フィ-ドバックル-プによる共鳴法)" 日本機械学会論文集. 56. 2562-2566 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 一宮 亮一: "音響信号を利用した体積測定の研究" 日本機械学会論文集. 57. 332-337 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S. Sakamoto: "A New Measuring Method of Displacement by Means of Variations of Sound Frequency and the Length of Air Column in a Small Pipe (Theoretical Analysis by Means of Electrical Analogous Circuit and Velocity Distribution)" Transaction of JSME. vol. 56. 435-441 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Sakamoto: "A New Measuring Method of Displacement by Means of Variations of Sound Frequency and the Length of Air Volume in a Small Pipe (A Resonant Method by Using Speaker and Electric Feedback Loop)" Transaction of JSME. Vol. 56. 2562-2566 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R. Ichimiya: "Volume Measurement by Means of Sound Signals (Measurement of Volume Variation of Liquid by Means of Air Jet and Sound Frequency" Transaction of JSME. Vol. 57. 332-337 (1991)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1993-08-12  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi