| 摘要 |
PURPOSE:To make simultaneous measurement possible, by using a direction perpendicular to a flowing direction of a fluid in a duct as the longitudinal direction and joining monolithically a total pressure measuring pipe of the upper stream side of the flowing direction having a total pressure measuring hole and a static pressure measuring pipe having a larger diameter than that of the total pressure measuring pipe having a static pressure measuring hole. CONSTITUTION:Plural total pressure measuring hales 4 are bored into a total pressure measuring pipe 2 so as to face an upper stream of a flowing direction A of a fluid. Total pressure is averaged in the pipe 2 because these plural holes 4 are communicated through the pipe 2. Plural Static pressure measuring holes 5 bored into a static pressure measuring pipe 3 are formed at a position having a suitable angle (a variable angle theta) to the direction A of the fluid. The static pressure is averaged in the pipe 3 because these holes 5 are communicated through the pipe 3. |
