Narzędzia help

Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
first previous next last
cannonical link button


Optica Applicata

Tytuł artykułu

A distributed soil temperature measurement system with high spatial resolution based on BOTDR

Autorzy Gao, L.  Shi, B.  Zhu, Y.  Wang, K.  Sun, Y.  Tang, C. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN This paper presents a new, recently developed, distributed soil temperature measurement sensor system, with high spatial resolution, based on Brillouin optical time domain reflectometry (BOTDR). The process of developing the distributed soil temperature sensor is introduced in detail, including the principle, materials, installation, instrumentation and calibration. The new distributed soil temperature sensor improves the spatial resolution from 100 cm to 3.3 cm, and has some other unique advantages, including long distance measurement capability, a longer life cycle, galvanic isolation, EMI immunity, good stability and ease of integration. Finally, an in situ comparison test was carried out, where results from the new sensor were compared to data measured using a standard point-mode system. This test proves that the newly developed distributed sensor is both accurate and has the capability to measure continuously the distribution of the soil temperature along the whole borehole depth, indicating that this new measure technique has a wide and powerful application potential.
Słowa kluczowe
EN distributed temperature measurement   Brillouin optical time domain reflectometry (BOTDR)   high spatial resolution   soil temperature  
Wydawca Oficyna Wydawnicza Politechniki Wrocławskiej
Czasopismo Optica Applicata
Rocznik 2011
Tom Vol. 41, nr 3
Strony 607--616
Opis fizyczny Bibliogr. 16 poz.
autor Gao, L.
autor Shi, B.
autor Zhu, Y.
autor Wang, K.
autor Sun, Y.
autor Tang, C.
  • School of Earth Sciences & Engineering, Nanjing University, 210093, China
[1] De BRUYN D., THIMUS J.F., The influence of temperature on mechanical characteristics of Boom clay: The results of an initial laboratory programme, Engineering Geology 41(1–4), 1996, pp. 117–126.
[2] MA SHI-JU, The environmental effect on urban soil bodies, Kunming University of Science and Technology, 2008, (in Chinese).
[3] CAI GUO-QING, ZHAO CHENG-GANG, Temperature effects on seepage and strength-deformation characteristics of unsaturated soils, Advance in Mechanics 40(2), 2010, pp. 147–156, (in Chinese).616 L. GAO et al.
[4] TU XIN-BIN, DAI FU-CHU, Analytical solution for one-dimensional heat transfer equation of soil and evaluation for thermal diffusivity, Chinese Journal of Geotechnical Engineering 30(5), 2008, pp. 652–657, (in Chinese).
[5] ZHANG YAN-JUN, YU ZI-WANG, HUANG RUI, et al., Measurement of thermal conductivity and temperature effect of geotechnical materials, Chinese Journal of Geotechnical Engineering 31(2), 2009, pp. 213–217, (in Chinese).
[6] WU QING-BAI, YU HUI, JIANG GUAN-LI, et al., Analysis of temperature features within crushed rock revetment and cooling mechanism of embankments for the Qinghai Tibet railway, Chinese Journal of Geotechnical Engineering 30(7), 2008, pp. 1011–1016, (in Chinese).
[7] CHEN WEN-HUA, ZHAO CHENG-GANG, ZENG QIAO-LING, et al., Artificial boundary conditions and simulation of temperature and moisture of sub soil, Chinese Journal of Geotechnical Engineering 22(5), 2000, pp. 545–548, (in Chinese).
[8] WANG TIE-HANG, LI NING, XIE DING-YI, Necessity and means in research on soil coupled heat--moisture-stress issues, Rock and Soil Mechanics 26(3), 2005, pp. 488–493, (in Chinese).
[9] BAO X., WEBB D.J., JACKSON D.A., Combined distributed temperature and strain sensor based on Brillouin loss in an optical fiber, Optics Letters 19(2), 1994, pp. 141–143.
[10] NIKLES M., THEVENAZ L., ROBERT P.A., Simple distributed fiber sensor based on Brillouin gain spectrum analysis, Optics Letters 21(10), 1996, pp. 758–760.
[11] HORIGUCHI T., SHIMIZU K., KURASHIMA T., TATEDA M., KOYAMADA Y., Development of a distributed sensing technique using Brillouin scattering, Journal of Lightwave Technology 13(7), 1995, pp. 1296–1302.
[12] ZHOU L.F., BAO X.Y., AFSHAR S.V., CHEN L., Dependence of the Brillouin frequency shift on strain and temperature in a photonic crystal fiber, Optics Letters 29(13), 2004, pp. 1485–1487.
[13] ZHANG WEI, SHI BIN, SUO WEN-BIN, et al., Monitoring and application of distributed optical fiber sensors in transient temperature field of frozen soil, Chinese Journal of Geotechnical Engineering 29(5), 2007, pp. 202–207, (in Chinese).
[14] LI KUO, ZHOU ZHEN-AN, LIU AI-CHUN, The application of fiber Bragg grating sensor to high precision temperature measurement, Progress in Geophysics 23(4), 2008, pp. 1322–1325.
[15] CUI HE-LIANG, SHI BIN, XU HONG-ZHONG, et al., BOTDR optic fiber temperature monitoring technique and its application in civil engineering, Journal of Disaster Prevention and Mitigation Engineering 4(3), 2004, pp. 252–256, (in Chinese).
[16] JUNQI GAO, BIN SHI, WEI ZHANG, HONG ZHU, Monitoring the stress of the post-tensioning cable using fiber optic distributed strain sensor, Measurement 39(5), 2006, pp. 420–428.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-article-BPW7-0018-0040