Instrument Abbreviation:
WB57F TDL
Instrument Measurements:
a) Trace Gas
b) Cloud Physics/Aerosol
c) Radiation/Optical/Electrical
d) Additional Capabilities
Resource Person/Developer:
M. T. Coffey, W. G. Mankin, J. W. Hannigan
NCAR/ACD
(303) 497-1407 (phone Coffey)
coffey@ucar.edu
Principle of Measurement:
Measure the absorption of infrared radiation, produced by
diode laser, by target gas in a long path cell.
In situ/Remote/Flux Measurement:
in situ
Field projects in which the instrument has been used:
Test flight in WB57F in STERAO A.
Aircraft Platform:
WB57F; adaptable to others
Inlet Configuration/Location:
Flow through inlet on side of pallet
Calibration/Cross Calibration:
In-flight calibration by substitution of calibration
mixtures for the sample
Operator Requirements:
Instrument is automatic. Operator turns it on and off,
and can inhibit calibration during interesting observation
periods.
Data Collection:
self
Post-flight Data Validation, Processing, Hours per Flight Hour etc.
As yet unknown
Physical Characteristics:
Dimensions: 24 x 34 x 32 inches
Weight: 285 lbs
Power: 10 amp, 28 vdc; 3 amp, 110 vac, 60 Hz
Other:
Response Time: 1 second
Detection Limits: 1 ppb
Accuracy: 1%
Precision: 1 ppb
Limitations (such as altitude, airspeed, etc.) undetermined