抄録
A digital signal processing technique for visualizing spatiotemporal behavior of a fluctuating temperature field of an airflow was developed, in which an adaptive response compensation method was applied to a two-dimensional array of fine-wire thermocouples. In the experiment, sixty-four two-thermocouple sensors-the sensor is composed of two fine-wire thermocouples of unequal diameters, e.g., 25μm and 51μm-were used, and enabled us to capture rapid precessional motion of a hot air jet adequately. The technique developed will serve as a basis for a real-time response compensation technique for multidimensional thermocouple measurement.
