Apogee Instruments SQ-645 소유자 매뉴얼 - 페이지 11

{카테고리_이름} Apogee Instruments SQ-645에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee Instruments SQ-645 16 페이지. Quantum light pollution sensor
Apogee Instruments SQ-645에 대해서도 마찬가지입니다: 소유자 매뉴얼 (16 페이지)

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Apogee Instruments SQ-645 소유자 매뉴얼
Sensor Calibration
Apogee SQ-640 Quantum Light Pollution Sensors have standard calibration factors of exactly:
Multiply the calibration factor by the measured mV signal to convert sensor output to photon flux density in units
of µmol m
-2
s
-1
:
Calibration Factor (1 µmol m
1
LED Output
-2
(50 µmol m
1 µmol m
-2
-1
s
per mV) * Sensor Output Signal (mV) = Photon Flux Density (µmol m
*
-1
s
)
Sensor Output
50 mV
-2
-1
s
per mV
50
=
50
Example of photon flux density measurement with an
Apogee model SQ-640 Quantum Light Pollution Sensor.
The LED in this example Full yields a photon flux density on
a horizontal plane of 50 µmol m
signal of 50 mV. This signal is converted to photon flux
density by multiplying by the calibration factor of 1 mol
-2
-1
m
s
/ mV.
-2
-1
s
)
-2
-1
s
. This yields an output