Ultrasonic tomography based temperature distribution measurement method

Abstract The temperature distribution information plays an important role in industrial applications. Owing to the advantages such as non-intrusive sensing and low cost, the ultrasonic tomography (UT) is considered to be a promising method for temperature field visualization. The ultrasonic time-of-flight (TOF) measurement and the reconstruction algorithm are crucial for practical applications of the UT measurement. In this paper, a dual-threshold measurement method is proposed to ensure a high-quality TOF measurement. In view of the inaccurate nature of the reconstruction model and TOF data, a new reconstruction method that integrates the advantages of the Tikhonov regularization method and the least squares support vector machine (LSSVM) is proposed to improve the reconstruction quality. The experimental results were compared against thermocouple measurements and the results show that the temperature distribution can be reconstructed with the error of 1.3%, which validates the feasibility and effectiveness of the proposed Tikhonov-LSSVM reconstruction algorithm.

[1]  A technique for measuring velocity and attenuation of ultrasound in liquid foams. , 2012, Ultrasonics.

[2]  Yingcun Xia,et al.  Semiparametric Regression Models , 2011, International Encyclopedia of Statistical Science.

[3]  D. Calvetti,et al.  Tikhonov regularization and the L-curve for large discrete ill-posed problems , 2000 .

[4]  Jigui Zhu,et al.  A highly accurate ultrasonic ranging method based on onset extraction and phase shift detection , 2014 .

[5]  Pei-wen Que,et al.  Wavelet based noise suppression technique and its application to ultrasonic flaw detection. , 2006, Ultrasonics.

[6]  Li Jian,et al.  Rotating polar-coordinate ART applied in industrial CT image reconstruction , 2007 .

[7]  Qian Zhao,et al.  Preconditioning of projected SIRT algorithm for electromagnetic tomography , 2013 .

[8]  Hua Yan,et al.  Primary study of temperature distribution measurement in stored grain based on acoustic tomography , 2012 .

[9]  Ming J. Zuo,et al.  An adaptive Morlet wavelet filter for time-of-flight estimation in ultrasonic damage assessment , 2010 .

[10]  Johan A. K. Suykens,et al.  LS-SVM based spectral clustering and regression for predicting maintenance of industrial machines , 2015, Eng. Appl. Artif. Intell..

[11]  Y. P. Huang,et al.  Envelope pulsed ultrasonic distance measurement system based upon amplitude modulation and phase modulation. , 2007, The Review of scientific instruments.

[12]  Yuguang Niu,et al.  Online monitoring of the two-dimensional temperature field in a boiler furnace based on acoustic computed tomography , 2015 .

[13]  S. Ohyama,et al.  Temperature distribution and wind vector measurement using ultrasonic CT based on time of flight detection , 2007, 2007 International Conference on Control, Automation and Systems.

[14]  Yongzhong Song,et al.  Image restoration with a high-order total variation minimization method☆ , 2013 .

[15]  E. Salerno,et al.  An acoustic pyrometer system for tomographic thermal imaging in power plant boilers , 1996 .

[16]  Johan A. K. Suykens,et al.  Least Squares Support Vector Machines , 2002 .

[17]  Jian Yu,et al.  Restoration of images corrupted by mixed Gaussian-impulse noise via l1-l0 minimization , 2011, Pattern Recognit..

[18]  Pei-wen Que,et al.  Optimal scale wavelet transform for the identification of weak ultrasonic signals , 2009 .

[19]  Liansuo An,et al.  Ash fouling monitoring based on acoustic pyrometry in boiler furnaces , 2015 .

[20]  Xing Zhang,et al.  Noncontact measurement of internal temperature distribution in a solid material using ultrasonic computed tomography , 2001 .

[21]  Filippo Attivissimo,et al.  Digital signal processing techniques for accurate ultrasonic sensor measurement , 2001 .

[22]  Kai Zhang,et al.  Three-dimensional reconstruction using an adaptive simultaneous algebraic reconstruction technique in electron tomography. , 2011, Journal of Structural Biology.

[23]  Qingyu Xiong,et al.  Ultrasonic temperature distribution reconstruction for circular area based on Markov radial basis approximation and singular value decomposition. , 2015, Ultrasonics.

[24]  Supachai Bangliang,et al.  The use of simultaneous iterative reconstruction technique for electrical capacitance tomography , 2000 .

[26]  Cila Herman,et al.  Possibilities and limitations of the ART-Sample algorithm for reconstruction of 3D temperature fields and the influence of opaque obstacles. , 2013, International journal of heat and mass transfer.

[27]  Eduardo Rocon,et al.  Design and evaluation of a fast model-based algorithm for ultrasonic range measurements , 2008 .

[28]  Wang Yifan,et al.  3D ECT reconstruction by an improved Landweber iteration algorithm , 2014 .

[29]  Cornel Ioana,et al.  Zernike ultrasonic tomography for fluid velocity imaging based on pipeline intrusive time-of-flight measurements , 2014, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

[30]  Jung-Ryul Lee,et al.  Statistical threshold determination method through noise map generation for two dimensional amplitude and time-of-flight mapping of guided waves , 2013 .

[31]  Martin Stoll,et al.  A Krylov–Schur approach to the truncated SVD , 2012 .

[32]  A Tikhonov,et al.  Solution of Incorrectly Formulated Problems and the Regularization Method , 1963 .

[33]  Ming Jiang,et al.  Convergence of the simultaneous algebraic reconstruction technique (SART) , 2003, Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256).