Apogee MQ-650 소유자 매뉴얼 - 페이지 8

{카테고리_이름} Apogee MQ-650에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee MQ-650 20 페이지. Underwater epar meter

Cosine Response

Directional, or cosine, response is defined as the

measurement error at a specific angle of radiation

incidence. Error for Apogee MQ-600 series ePAR Sensor

is approximately ± 2 % and ± 5 % at solar zenith angles

of 45° and 75°, respectively.

Mean directional (cosine) response

of seven Apogee series quantum

sensors. Directional response

measurements were made on the

rooftop of the Apogee building in

Logan, Utah. Directional response

was calculated as the relative

difference of quantum sensors

from the mean of replicate

reference quantum sensors (LI-

COR models LI-190 and LI-190R,

Kipp & Zonen model PQS 1). Data

were also collected in the

laboratory using a reference lamp

and positioning the sensor at

varying angles.