List of symbols
Heat flux
Φ
W m
-2
Thermal conductivity of the surrounding medium
or object on which the sensor is mounted
λ
W/mK
Voltage Output
V
V
HFP01 Sensitivity
E
sen
µV/Wm
-2
Thermal conductivity dependence of E
sen
E
λ
mK/W
Time
t
s
Surface Area
A
m
2
Electrical Resistance
R
e
Ω
Thermal Resistance
R
th
Km
2
/W
Temperature
T
K
Temperature Dependence
TD
%/K
Depth of Burial
d
m
Subscripts
Property of the Sensor
sen
Property of Air
air
Property during Calibration
cal
Property of the Object on which HFP01 is
mounted
obj
Property at the soil surface
surf
Enabling better research outcomes in soil, plant & environmental monitoring.
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