Qiao Qingqing, Chen Wanchun. Singular perturbation midcourse guidance law based on dynamic inversion for air-to-air missile[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1365-1371. (in Chinese)
Citation: Nie Jing, Meng Xiaofeng, Wang Shuo, et al. Dew point measurement based on the sensitive circuit[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(2): 206-209. (in Chinese)

Dew point measurement based on the sensitive circuit

  • Received Date: 22 Dec 2011
  • Publish Date: 28 Feb 2013
  • According to the problem of atmospheric humidity measurements, the dew point measurement method was proposed based on the sensitive circuit. The quartz crystal as a humidity sensor, when water condensation produced by the Peltier cooling appears on the quartz crystal, the test circuit will stop the vibration. Use this characteristics of colpitts oscillator distinguish the dew point and can get the dew point temperature. The measurement results with the proposed method were compared with the actual data. Though some measurement error was yielded, it is proved that the proposed method is useful for measuring the dew point of moist air and it has some advantages such as simple, high sensitivity, good reliability and low cost.

     

  • [1]
    Rittersma Z M.Recent achievements in miniaturized humidity sensors—a review of transudation techniques[J].Sensors and Actuators A,2002,96(2-3):196-210
    [2]
    王进才,陈振林,张凤林,等.图像式露点测量仪器的功能开发[J].分析测试技术与仪器,2000,6(3):158-161 Wang Jincai,Chen Zhenlin,Zhang Fenglin,et al.Image-sensitization condensation hygrometer[J].Analysis and Testing Technology and Instrument,2000,6(3):158-161(in Chinese)
    [3]
    Weremczuk J,Tarapata G,Paczesny D,et al.Fast dew point hygrometer with silicon integrated detector-Optimization of dynamic properties[J].Sensors and Actuators A,2006,132(1):195-198
    [4]
    Sauerbrey G Z.Use of quartz crystal vibrator for weighting thin films on a microbalance[J].Phys,1959,155:206-222
    [5]
    Kanazawa K K,Gordon J G.The oscillation frequency of a quartz resonator in contact with liquid[J].Analytica Chimica Acta,1985,175:99-105
    [6]
    Hillman A R.The EQCM:electrogravimetry with a light touch[J].Journal of Solid State Electrochemistry,2011,15(7-8):1647-1660
    [7]
    Kwon S Y,Kim Y G,Yang I.Study on the melting and freezing behaviour of high temperature binary eutectic fixed points using differential scanning calorimetry[J].Metrologia,2010,47(3):248-252
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(1703) PDF downloads(719) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return