Unit Conversions
Unit Conversions
Quantum Sensors
1.0 µmol s
-1
m
-2
= 1 µE s
-1
m
-2
= 6.022 × 10
17
photons s
-1
m
-2
= 6.022 × 10
17
quanta s
-1
m
-2
= 6.022 × 10
13
quanta s
-1
cm
-2
Pyranometer
1 W m
-2
= 1.433 × 10
-3
cal cm
-2
min
-1
= 1.433 × 10
-3
langley min
-1
= 0.100 mW cm
-2
= 100 µW cm
-2
= 1.0 J s
-1
m
-2
= 1000 erg s
-1
cm
-2
= 0.317 BTU ft
-2
h
-1
= 5.283 × 10
-3
BTU ft
-2
min
-1
Photometric Sensor
1 lux
= 1 lm m
-2
= 0.0929 lm ft
-2
= 0.0929 fc
= 0.001 klux
14
