Development of a Simultaneous Measurement System of Length and Temperature of Pipes Using Stationary Waves with Two Acoustic Sensors

开发使用带有两个声传感器的驻波同时测量管道长度和温度的系统

• 批准号: 12555115
• 负责人: TANAKA Shogo
• 金额: $ 3.9万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555115/
• 关键词: Pipe Length; Temperature; Sound Disturbance; Acoustic Sensor; Intelligent Sensing; Stationary Waves; Kalman Filters; Maximum Likelihood Method; 音響センサ; 管内温度; 直管; 最尤法; 管の長さ; 間接計測; 知的計測; ダイナミックモデル

In the field of measurement, there are many applications where the measurement of pipe length plays an important role. From the viewpoint, four types of highly accurate pipe length measurement systems were developed using stationary waves in the pipe. The first system measures the length of pipes with open ends, the second system measures the length of pipes even if stationary wave in the pipe is disturbed by external sounds, the third system measures not only the pipe length but also the location of branch point for branch pipes, and lastly the fourth system measures the pipe length together with the temperature in the pipe.That is, the first three measurement systems were developed for various types of pipes considering that the temperature in the pipe is measured with a thermometer, whereas the last measurement system was developed with the situation in mind that the temperature in the pipe change so rapidly as not to be followed by usual thermometers as in the case where the air in the pipe is pressurized by an air compressor.

在测量领域中，管道长度的测量起着非常重要的作用。从这一观点出发，开发了四种利用管道中驻波的高精度管道长度测量系统。第一个系统测量开口管道的长度，第二个系统在管道中的驻波受到外界声音干扰的情况下测量管道的长度，第三个系统不仅测量管道长度，还测量分支管道的分支点位置，最后第四个系统测量管道长度和管道内的温度。也就是说，前三个系统是针对不同类型的管道而开发的，考虑到管道中的温度是用温度计测量的，而最后一种测量系统是在考虑到管道中的温度变化如此之快以至于常规温度计无法跟踪的情况下开发的，例如在管道中的空气由空气压缩机加压的情况下。

项目成果

岡本昌幸: "定在波を用いた分岐管の長さ及び分岐点位置の計測"システム/制御/情報. 15・9(掲載予定). (2002)

冈本正之：“利用驻波测量支管长度和支管点位置”系统/控制/信息（2002年）。

S.Tanaka and M.Okamoto: "Dynamic Model Based Length Measurement Using Stationary Waves"Measurement. Vol.28. 249-259 (2000)

S.Tanaka 和 M.Okamoto：“使用驻波进行基于动态模型的长度测量”测量。

M.Okamoto and S.Tanaka: "On-Line Measurement of Sand Level in Casing Pipes Using Stationary Wave"Trans. Of The Institute of Electrical Engineers of Japan. Vol.121-C, No.3. 653-661 (2001)

M.Okamoto 和 S.Tanaka：“利用驻波在线测量套管中的砂位”Trans。

M.Okamoto and S.Tanaka: "Pipe Length Measurement for Pipes with Open Ends Using Stationary Wave Under Noisy Environment"Proc. Of the 34th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (to be published). (2003)

M.Okamoto 和 S.Tanaka：“噪声环境下使用驻波测量开口端管道的管道长度”Proc。

西本 勝: "定在波を用いた湾曲管および分岐管の長さ計測"電気学会論文誌. 121-E. 402-411 (2001)

Masaru Nishimoto：“使用驻波测量弯曲管道和分支管道”，日本电气工程师学会会刊 121-E 402-411 (2001)。