LI-600 Porometer/Fluorometer Instruction Manual
6-6
FLUORO
Fo Minimum fluorescence in dark
Fm Maximum fluorescence in dark
Fv/Fm Quantum efficiency in dark
Fs Minimum fluorescence in light
Fm' Maximum fluorescence in light
PhiPS2 Quantum efficiency in light
PS2/1 Ratio of PSII to PSII absorptance
abs Leaf light absorptance
ETR Electron transport rate
TRANS Transmission factor
Sensor
The Sensor group contains the values recorded by the
relative humidity, temperature, flow, pressure, and PAR
sensors as well as the battery voltage. The output in the
SENSORgroup is calculated from the SENSOR_V and
calibration coefficients determined at the factory.
SENSOR
rh_s Sample relative humidity
rh_r Reference relative humidity
Tref Block reference temperature
Tmeas IRT leaf (sample) temperature
Tleaf Calculated leaf temperature
P_atm Atmospheric pressure
flow Flow rate to cuvette
flow_s Exhaust flow leaving cuvette
leak_pct Flow percent leak
Qamb Ambient light
batt Battery voltage
Leaf angle
The leaf angle group contains measurements from the
magnetometer, accelerometer, GPS, and calculated vari-
ables. See Leaf angle and GPS on page9-16. This group