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水下壁面剪应力传感器温控标定装置研究

夏云峰 郝思禹 徐华 蔡喆伟 张世钊 闫杰超

夏云峰, 郝思禹, 徐华, 等. 水下壁面剪应力传感器温控标定装置研究[J]. 实验流体力学, 2017, 31(3): 72-77. doi: 10.11729/syltlx20170025
引用本文: 夏云峰, 郝思禹, 徐华, 等. 水下壁面剪应力传感器温控标定装置研究[J]. 实验流体力学, 2017, 31(3): 72-77. doi: 10.11729/syltlx20170025
Xia Yunfeng, Hao Siyu, Xu Hua, et al. Research on the calibration device with temperature control for underwater wall shear stress sensor[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(3): 72-77. doi: 10.11729/syltlx20170025
Citation: Xia Yunfeng, Hao Siyu, Xu Hua, et al. Research on the calibration device with temperature control for underwater wall shear stress sensor[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(3): 72-77. doi: 10.11729/syltlx20170025

水下壁面剪应力传感器温控标定装置研究

doi: 10.11729/syltlx20170025
基金项目: 

国家重大科学仪器设备开发专项项目 2013YQ040911

国家自然科学基金项目 51309158

详细信息
    作者简介:

    夏云峰(1965-), 男, 安徽芜湖人, 博士, 教授级高级工程师。研究方向:河口海岸泥沙工程研究。通信地址:江苏省南京市鼓楼区虎踞关34号南京水利科学研究院河流海岸研究所(210024)。E-mail:yfxia@126.com

    通讯作者:

    夏云峰, E-mail:yfxia@126.com

  • 中图分类号: TV131

Research on the calibration device with temperature control for underwater wall shear stress sensor

  • 摘要: 新型壁面剪应力传感器的出现为河口海岸工程中水下壁面剪应力的准确测量提供了新的方式。热式壁面剪应力传感器受环境温度影响显著,相关传感器的研究与应用需要准确的标定。本文基于宽扁管道内壁面切应力与沿程压力梯度的关系,研发了一种具有温控功能的水下壁面剪应力传感器静态标定装置,可实现不同水温条件下的壁面剪应力输出。该标定装置可提供的最大水温在35℃。最后通过对MEMS柔性热膜式壁面剪应力传感器在不同水温条件下的静态标定实验,确定了不同水温条件下传感器的标定系数,结果表明标定系数B与水温呈线性相关。
  • 图  1  典型的壁面剪应力传感器标定用微型宽扁管道示意图[13]

    Figure  1.  Typical micro rectangular duct for wall shear stress sensor calibration[13]

    图  2  标定段宽扁管道示意图

    Figure  2.  Diagrammatic sketch of the calibration section

    图  3  用于连接水管和标定段的平滑过渡段

    Figure  3.  Transition section for connecting pipe and calibration section

    图  4  标定段壁面剪应力沿程分布

    Figure  4.  Distribution of wall shear stress along the calibration section

    图  5  水下壁面剪应力传感器温控标定装置平面布置图

    Figure  5.  Layout of the calibration device with temperature control for underwater wall shear stress sensor

    图  6  加热浮箱照片

    Figure  6.  Photo of floating heater

    图  7  MEMS柔性热膜式壁面剪应力传感器

    Figure  7.  MEMS flexible hot-film wall shear stress sensor

    图  8  安装于标定段的柔性热膜式壁面剪应力传感器

    Figure  8.  Wall shear stress sensor installed on the calibration section

    图  9  编号1的壁面剪应力传感器在不同水温下的标定曲线

    Figure  9.  Calibration curves of #1 sensor at different water temperatures

    图  10  编号2的壁面剪应力传感器在不同水温下的标定曲线

    Figure  10.  Calibration curves of #2 sensor at different water temperatures

    图  11  标定系数B与水温Ta的变化趋势

    Figure  11.  Variation trend of calibration coefficient B and water temperature Ta

    表  1  标定系数以及标定公式的确定系数

    Table  1.   Parameters of calibration equations and R-Square

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出版历程
  • 收稿日期:  2016-12-15
  • 修回日期:  2017-05-22
  • 刊出日期:  2017-06-25

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