Local Model Networks(LMN) Based Ultrasonic Liquid Density Test and On-line Correction
JIN Haishui 1, ZHU Shiming 2,YIN Qiufang 3 1.School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024 P.R.China 2. Institute of Acoustics, Tongji University, Shanghai 200092 P.R.China 3.Kunshan Constraction Engincering Survey C
In many cases, the density of liquid is function of velocity of ultrasound passing through it, and the function is different at different temperature. Aiming at this property of liquid, author put forward a LMN Based fit and correcting method of the function. The method is more flexible than the polynomial fit method and easy for on line correction.