剪切流探头标定方法研究

Study on Calibration Method for Shear Probe

海洋湍流动能耗散率的获取主要是依靠精细结构的流速剪切原始数据,而目前获取数据的最为有效和可靠手段是使用专用的湍流测量仪器。翼型剪切流探头作为仪器最为重要的部分,其性能决定了获得数据的有效性和可靠性,为此,对其特性的研究具有重要的科学价值和工程意义。翼型剪切流探头在标定和实际测量过程中,其数据获取精度受很多因素的影响,为此,获取准确的测量数据,提高目前的翼型剪切流探头测量水平,开展探头标定精度分析,测量过程的误差研究,对提高海洋微结构研究具有重要意义。

Acquiring of dissipation rate of ocean turbulent kinetic energy mainly relies on the raw data of shear velocity of the fine structure.The most effective and reliable means of data acquisition is using special instruments of turbulence measuring.As the most important part of the instrument,the performance of airfoil shear probe determines the validity and reliability of access to data,therefore the research on the characteristics has important scientific value and engineering significance.In the process of airfoil shear probe calibration and actual measurement,the accuracy of data acquisition is affected by many factors.Therefore,it is of great significance to improve the ability of ocean microstructure research,through obtaining the accurate measurement data,improving the current level of airfoil shear probe measurement,carrying out the analysis of the probe calibration accuracy and error research in the measurement process.