Volume 42 Issue 12
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FU Dongbo, DU Taotao, SHEN Shaoqun. Design of double layer resistance gird SOI strainometer and its application in coal mine[J]. Journal of Mine Automation, 2016, 42(12): 10-14. DOI: 10.13272/j.issn.1671-251x.2016.12.003
Citation: FU Dongbo, DU Taotao, SHEN Shaoqun. Design of double layer resistance gird SOI strainometer and its application in coal mine[J]. Journal of Mine Automation, 2016, 42(12): 10-14. DOI: 10.13272/j.issn.1671-251x.2016.12.003
shu

Design of double layer resistance gird SOI strainometer and its application in coal mine

  • 1.

    Coal Mining and Designing Department, Tiandi Science and Technology Co.,Ltd.,Beijing 100013, China

  • 2.

    School of Information Science and Technology, Fudan University, Shanghai 200433, China

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    Abstract
  • A double layer resistance gird SOI strainometer with micro fuse structure was designed. The strainometer is produced by techniques of thermally grown oxide, photoetching and mechanical erosion. It solves problems of normal SOI strainometer which has small bulk resistor and is vulnerable to pollution, and improves precision, insulativity and working stability of the strainometer. Field test results show that mine borehole stressmeter adopting the proposed SOI strainometer has high measuring accuracy and stable and reliable performance,and is suitable for stress monitoring of coal and rock mass.
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    SHEN Shaoqun
    • 2.

      School of Information Science and Technology, Fudan University, Shanghai 200433, China

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