Apogee SQ-100 Series 소유자 매뉴얼 - 페이지 10
{카테고리_이름} Apogee SQ-100 Series에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee SQ-100 Series 17 페이지. Quantum sensor
Apogee SQ-100 Series에 대해서도 마찬가지입니다: 소유자 매뉴얼 (2 페이지)
OPERATION AND MEASUREMENT
Connect the sensor to a measurement device (meter, datalogger, controller) capable of measuring and
displaying or recording a millivolt signal (an input measurement range of approximately 0-500 mV is
required to cover the entire range of PPF from the sun). In order to maximize measurement resolution
and signal-to-noise ratio, the input range of the measurement device should closely match the output
range of the quantum sensor. DO NOT connect the sensor to a power source. The sensor is self-
powered and applying voltage will damage the sensor.
All Apogee un-amplified quantum sensor models (SQ-100 and SQ-300 series) have a standard PPF
calibration factor of exactly:
Multiply this calibration factor by the measured mV signal to convert sensor output to PPF in units of µmol
m
-2
s
-1
:
Calibration Factor (5.0 µmol m
5.0
5.0 µmol m
-2
-2
-1
s
per mV) * Sensor Output Signal (mV) = PPF (µmol m
*
Example of PPF measurement with an Apogee quantum
sensor. Full sunlight yields a PPF on a horizontal plane at
the Earth's surface of approximately 2000 µmol m
yields an output signal of 400 mV. The signal is converted to
PPF by multiplying by the calibration factor of 5.00 µmol m
s
-1
per mV.
s
-1
per mV
400
-2
-1
s
)
=
2000
-2
s
-1
. This
10
-2