Apogee SQ Series Panduan Pemilik - Halaman 12

Jelajahi secara online atau unduh pdf Panduan Pemilik untuk Aksesori Apogee SQ Series. Apogee SQ Series 19 halaman. Quantum sensor

Sensor Calibration

All Apogee unamplified quantum sensor model (SQ-100X) have a standard PPFD calibration factor of exactly:

Multiply this calibration factor by the measured mV signal to convert sensor output to PPFD in units of µmol m

Calibration Factor (10.0 µmol m

10.0

Full Sunlight

(2000 µmol m

-2

10.0 µmol m

-2

-1

per mV) * Sensor Output Signal (mV) = PPFD (µmol m

-1

)

Sensor Output

200 mV

-2

-1

per mV

200

Example of PPFD measurement with an Apogee

quantum sensor. Full sunlight yields a PPFD on

a horizontal plane at the Earth's surface of

approximately 2000 µmol m

output signal of 200 mV. The signal is

converted to PPFD by multiplying by the

calibration factor of 10.00 µmol m

-2

-1

-2

-1

)

2000

-2

-1

. This yields an

-2

-1

per mV.