ADM-880C 07/20/09
54
conditions if these results are to represent true air velocity.
Local density velocity readings taken with the ADM-880C AirData Multimeter may be compared with hot wire anemometer
readings if the hot wire readings are corrected for local air density conditions to obtain true air velocity results.
The precise method for calculating local density corrected air velocity from measurements taken with a
hot wire anemometer
requires the use of the following equation:
Where:
P
b
= local barometric pressure (in Hg)
/
F = temperature of air stream
Velocity measurements taken with a thermal anemometer may be compared
directly
to AirData Multimeter velocity readings
taken in the
standard density mode
.
Summary of Contents for AIRDATA ADM-880C
Page 42: ...ADM 880C 07 20 09 37 FIGURE 6 3 VELGRID ASSEMBLY...
Page 50: ...ADM 880C 07 20 09 45 FIGURE 10 1 FRAME STORAGE FIGURE 10 2 FLOWHOOD IN CASE...
Page 51: ...ADM 880C 07 20 09 46 FIGURE 10 3 FLOWHOOD ASSEMBLY...
Page 53: ...ADM 880C 07 20 09 48 FIGURE 10 7 1X5 FRAME ASSEMBLY FIGURE 10 8 3X3 FRAME ASSEMBLY...