超音波流速分布計測に温度勾配が与える影響

抄録

Effects of temperature gradient on ultrasound velocity profile method was evaluated by experiment. Ultrasound echo signals under temperature gradients condition was measured. The incident ultrasound beam which was caused by temperature gradients. After the confirmation of refraction beam, flow caused by heater was measured by an ultrasound phased array 2-D velocity profile measurement system. An upward flow was observed as expected using this system. As a result, the availability of flow measurement by phased array system under the temperature gradient environment was confirmed.