The application of digital interferometric techniques in the measurement of forced convection in compact channels is examined. Michelson Interferometry and Mach–Zehnder Interferometry have been compared and contrasted, in terms of the suitability for temperature measurements. A wedge-fringe setting parallel to the heated surface has been utilized as the basis of the fringe analysis, for effective measurement in small dimension channels. Michelson interferometry was found to provide a larger number of data points in the visualization field, thus proving to be a better method of measurement in compact passages. Heat transfer parameters, useful in heat sink design, were also calculated.

研究了数字干涉测量技术在紧凑通道中强制对流测量中的应用。就温度测量的适用性而言，已对迈克尔逊干涉测量法和马赫曾德尔干涉测量法进行了比较和对比。平行于加热表面的楔形条纹设置已被用作条纹分析的基础，以便在小尺寸通道中进行有效测量。发现迈克尔逊干涉测量法在可视化领域中提供了大量的数据点，因此被证明是紧凑通道中更好的测量方法。还计算了对散热器设计有用的传热参数。