DEVELOPMENT OF A COMPOUND SENSOR FOR ACCURATE DISPLACEMENT AND TEMPERATURE BY MEANS OF SOUND SIGNAL

开发通过声音信号精确测量位移和温度的复合传感器

• 批准号: 62850026
• 负责人: ICHIMIYA Ryoichi
• 金额: $ 1.92万
• 依托单位: NIIGATA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850026/
• 关键词: Sensor; Sound Frequency; Displacement; 温度測定; 音統周波数

SOUND GENERATES WHEN THE COMPRESSED AIR IS BLOWN ONTO AN OPEN-ENDED FACE OF A SMALL PIPE WHOSE BOTH ENDS ARE OPENED. THE SOUND FREQUENCY AND THE SOUND PRESSURE LEVEL VARY WITH THE DISPLACEMENT OF A SOLID PLACED CLOSE TO THE OTHER OPEN-ENDED FACE OF THE PIPE. THE TEMPERATURE OF THE AIR CAN BE DETECTED FROM THE SOUND VELOCITY WHICH VARIES WITH THE TEMPERATURE OF THE AIR. THE PURPOSE OF THIS RESEARCH WORK IS TO DEVELOP AND PUT TO PRACTICAL USE A NEW COMPOUND SENSOR WHICH CAN DTECT THE TEMPERATURE AND SMALL DISPLACEMENT WITHOUT CONTACT BY OBTAINING THE FREQUENCY VARIATION OF THE SOUND GENERATED IN THE PIPE.SOUND GENERATION WHEN THE COMPRESSED AIR IS BLOWN ONTO THE PIPE IS THEORETICALLY ANALYZED BY USING THE SOUND IMPEDANCES IN THE PIPE AND END FACES OF THE PIPE. SAMPLE CALCULATIONS ARE CONDUCTED UNDER VARIOUS SOUNDING CONDITIONS AND COMPARED WITH THE EXPERIMENTAL RESULTS. INORDER TO ESTABLISH A SUPERIOR MEASURING METHOD, A NEW NON-CONTACTING METHOD USING THE SOUND FREQUENCY GENERATED IN THE PIPE IS DEVISED WHICH IS HIGHLY ACCURATE, ECONOMICAL, WIDELY APPLICABLE, AND STRUCTURELLY SIMPLE. GOOD CORRESPONDENCE BETWEEN THE DISPLACEMENT AND THE SOUND FREQUENCY VARIATION IS OBTAINED, AND IT IS POSSIBLE TO MEASURE THE DISPLACEMENT WITH HIGH ACCURACY LOWER THAN 1mum.

当压缩空气吹到两端开口的小管道的开口面上时，就会产生声音。声频和声压级随放置在靠近管道另一开口表面的固体的位移而变化。空气温度可以从随空气温度变化的声速中检测出来。本研究的目的是研制和应用一种新型的复合式传感器，通过测量管道中产生的声音的频率变化，实现对温度和微小位移的非接触测量。利用管道内和管道端面的声阻抗，从理论上分析了压缩空气吹入管道时产生的声音。在不同探空条件下进行了算例计算，并与实验结果进行了比较。为了建立一种更好的测量方法，设计了一种利用管道中产生的声音频率进行非接触测量的新方法，该方法具有精度高、经济、适用范围广、结构简单等特点。位移与声频变化之间有很好的对应关系，可以实现小于1微米的高精度位移测量。

项目成果

一宮亮一: 日本機械学会論文集. 53. 125-130 (1987)

Ryoichi Ichinomiya：日本机械工程师学会会议记录 53. 125-130 (1987)。

宮下晃一: 日本機械学会 論文集. 54. 1469-1474 (1988)

Koichi Miyashita：日本机械工程师学会会议记录 54. 1469-1474 (1988)。

一宮亮一: 日本機械学会論文集. 54. 1469-1474 (1988)

Ryoichi Ichinomiya：日本机械工程师学会会议记录 54. 1469-1474 (1988)。

ICHIMIYA,RYOICHI: "AN ACCURATE MEASUREMENT OF DISPLACEMENT BY MEANS OF SOUND FREQUENCY IN A RESONANT PIPE (THEORETICAL ANALYSIS OF SOUND FREQUENCY VARIATION WITH DISPLACEMENT OF SUBSTANCE)" TRANSACTION OF J.S.M.E.54. 1469-1474 (1988)

ICHIMYA,Ryoichi：“通过谐振管中的声频精确测量位移（声频随物质位移变化的理论分析）”J.S.M.E.54 交易。

ICHIMIYA,RYOICHI: "CORRELATION BETWEEN THE PROCESS OF TRANSFERING STEADY CUTTING NOISE TO CHATTER NOISE AND THE VARIATION OF CUTTING SITUATIONS" TRANSACTION OF J.S.M.E.54. 3090-3094 (1988)

ICHIMYA,Ryoichi：“将稳定切削噪声转移到颤振噪声的过程与切削情况变化之间的相关性”J.S.M.E.54 交易。