| 摘要 |
<p>A strut mounted multiple static tube providing, as shown, multiple separate static pressure measuring systems and using one probe (10) with separate sets (23, 24 and 35, 36) of pressure sensing ports for each system. The probe (10) is designed to have a surface configuration which provides substantially identical static pressure conditions at each set of sensing ports (23, 24 and 35, 36) while the axial length of the barrel portion (14) of the sensing probe (10) is maintained at a minimum and the pressure effects from the adjacent structures such as the strut (13) are compensated for. The structure includes a barrel portion (14) of the probe (10) having a surface annular wave pattern (27, 28, 29, 30) with sections of different diameters which causes large, uniform changes in the pressure pattern along the probe (10) to provide areas of both positive and negative pressure levels for aerodynamic compensation. The positions for the ports (23, 24 and 35, 36) for the separate systems are selected from a pressure profile of the probe so the ports are located at desired pressure areas.</p> |
