Apogee Instruments SQ-618-SS 소유자 매뉴얼 - 페이지 9

{카테고리_이름} Apogee Instruments SQ-618-SS에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee Instruments SQ-618-SS 18 페이지. Epar sensor

Cosine Response

Directional, or cosine, response is defined as the

measurement error at a specific angle of radiation

incidence. Error for Apogee SQ-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.