| 摘要 |
PROBLEM TO BE SOLVED: To provide an interface meter capable of continuously measuring the position of interface in a tank in which the water level fluctuates, over the full range of the water levels without moving an ultrasonic wave receiver to follow the fluctuation of the water level. SOLUTION: In an interface meter which measures the position of interface in a tank by utilizing ultrasonic waves generates from ultrasonic wave transceivers, ultrasonic wave receivers 9, 10 are used, and they are provided to a sensor holder 11 so that they are properly spaced apart vertically and not overlapped when viewed from an up and down direction. Further, the sensing face 9a of the ultrasonic wave receiver 9 provided downward, is directed upward, while the sensing face 10a of the ultrasonic wave receiver provided upward is directed downward. |
