Total pressure probe with a duct                    Static pressure probe, ogive

Destination:

• Total and static pressure measurement in subsonic flows
• Determination of local flow speeds
• Determination of local angles of attack and sideslip angles of flat and 3D flows

Probe type	Minimum diameter (d), mm	Flow speed,m sec	Flow downwash, deg	Length l, mm diameter (d), mm	Systematic errors
Total pressure probes, cylindrical
With straight edge	0,2	10±300	±7	d=4±10	-1,0 %
With countersinking	0,5	10±300	±17	d=6±10	-1,0 %
With a duct	2,0	10±300	±57 ±45	d=8±12	-1,0 %
Static pressure probes, cylindrical
With conical and ogive input section	0,8	10±300	0	d=6, l=40d; l=20; l=12	0,5% 1,0% 4,0%
Total and static pressure probes for determination of a pressure head and speed, cylindrical, axial
With semispherical input section	2,6	10±100 10±300	0	d=8, l=12d	ΔV=0,5V ΔV=0,3V
Three-point pressure probes for determination of a value and direction of a speed of flat flows
Cylindrical	2,6	10±180	α=β=±25	d=4±8	ΔV=0,1 V,Δα=0,2°
Semispherical	3,0	10±250	α=β=±25	d=8	ΔV=0,2 V,Δα=0,3°
Spherical	5,0	10±250	α=β=±25	d=6±8	ΔV=0,3 V,Δα=Δβ=0,3°
Conical	5,0	10±300	α=β=±25	d=4±8	ΔV=0,1 V,Δα=Δβ=0,3°