Instrument Acronym:
PSF, PSFC, PSW, PSWC, PSB, PSBC
Instrument Measurements:
a) Trace Gas
b) Cloud Physics/Aerosol
c) Radiation/Optical/Electrical
d) Additional Capabilities
Barometric (static) pressure
Pressure Altitude
Resource Person/Developer:
Dick Friesen
NCAR/ATD/RAF
(303) 497-1047 (phone)
rbf@ucar.edu
Principle of Measurement:
Pressure on a sensing diaphragm, acting as one plate of a capacitor, changes
the capacitance which is converted to an electrical signal.
In situ/Remote/Flux Measurement:
In situ
Field projects in which the instrument has been used:
all
Aircraft Platform:
all
Inlet Configuration/Location:
Fuselage-, wing- or boom-mounted static pressure ports
Calibration/Cross Calibration:
Calibrated using a transfer standard which is periodically compared with a
dead-weight tester, a primary NIST-traceable reference.
Operator Requirements:
Data Collection:
external
Post-flight Data Validation, Processing, Hours per Flight Hour etc.
RAF NIMBUS software processor
Post-project validation by RAF Project Manager
Physical Characteristics:
Dimensions:
Weight:
Power:
Other:
Response Time:
< 1 s
Detection Limits:
0.034 mbar
Accuracy:
± 1.0 mbar
Precision:
Limitations (such as altitude, airspeed, etc.)