Method of measuring steel bar in building by THz wave

被引：0
|
作者：
Bi L. [1 ]
Yuan M. [1 ]
Zhu Y. [1 ]
机构：
[1] Shanghai Key Lab of Modern Optical System, Terahertz Technology Innovation Research Institute, University of Shanghai for Science and Technology, Shanghai
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2019年 / 48卷 / 01期
关键词：
Building; Data processing; Steel measurement; Terahertz wave;
D O I：
10.3788/IRLA201948.0125003
中图分类号：
学科分类号：
摘要：
The parameters of steel bar (such as position, diameter, etc. ) play an important role in the safety of the constructed buildings. A measurement method for position and diameter of the steel bar within the building by using terahertz wave was proposed. The terahertz wave was used as the detection signal to realize these functions, which the terahertz wave had a strong penetrability to nonmetal building material (such as cement, brick, lime, etc. ) and had the characteristics of almost total reflection to the metal (steel bar). At the same time, compared with the microwave, the terahertz wave was easy to achieve a very narrow antenna beam, which achieved high detection accuracy. And compared with the magnetic detector, it was not influenced by the external magnetic field environment. Theoretical analysis and engineering test show that this method can meet the requirements of actual engineering application. © 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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共 17 条
  • [1] Yang F., Luo S., Application of wavelet transform in detection of rebar in ground penetrating radar, Computing Techniques for Geophysical and Geochemical Exploration, 31, 4, pp. 354-360, (2009)
  • [2] Jiang Y., Deng B., Wang H., Et al., RCS measurement of cylinders in terahertz band based on the time-domain spectroscopy system, Infrared and Laser Engineering, 43, 7, pp. 2223-2227, (2014)
  • [3] Jiang Y., Deng B., Qin Y., Et al., Experimental results of concealed object imaging using terahertz radar, International Workshop on Electromagnetics: Applications and Student Innovation Competition, pp. 16-17, (2017)
  • [4] Wang F., Qiu D., Xia H., Et al., Preliminary exploration on identification of probiotics in terahertz time domain spectroscopy, Infrared and Laser Engineering, 45, 7, (2016)
  • [5] Ding L., Ding X., Ye Y., Et al., Overview of passive terahertz imaging systems for indoor concealed detection, Chinese Optics, 10, 1, pp. 114-121, (2017)
  • [6] Wang K., Radar simulation test on the defects inspection between concrete layers, South-To-North Water Transfers and Water Science & Technology, a01, pp. 85-87, (2016)
  • [7] Cao T., Wang W., Yang N., Et al., Detection method for the depth of pavement broken block in cement concrete based on 3D laser scanning technology, Infrared and Laser Engineering, 46, 2, (2017)
  • [8] Dai S., Liu L., Wu B., Et al., Development of handheld ground penetrating radar system for the nondestructive testing of reinforced concrete, Journal of Hunan University(Naturnal Science), 37, 9, pp. 39-43, (2010)
  • [9] Xie Q., Yang H., Li H., Et al., Explosive identification based on terahertz time-domain spectral system, Optics and Precision Engineering, 34, 10, pp. 2392-2399, (2016)
  • [10] Zhang J., Wang Q., Zhang X., Et al., Application of GPR in void defect detection of cement concrete pavement, Site Investigation Science and Technology, 6, pp. 50-52, (2013)
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