PolyPen RP 410手持式植物光譜測量儀通過內(nèi)部光源(氙氣白熾燈380-1050nm)測定植物葉片的反射光譜,也可以測定其他光源的透光度和吸光率。PolyPen在軟件中內(nèi)置了幾乎所有常用的植物反射光譜指數(shù)公式,例如NDVI,PRI,NDGI等。測得的數(shù)據(jù)以圖形或數(shù)據(jù)表的形式實時顯示在儀器的顯示屏上。這些數(shù)據(jù)都可以儲存在儀器的內(nèi)存里并傳輸?shù)诫娔X里
●技術(shù)參數(shù):
光譜檢測范圍:
PolyPen RP 410 UVIS光譜響應(yīng)范圍為380-780nm
PolyPen RP 410 NIR光譜響應(yīng)范圍為640-1050nm
內(nèi)置植被指數(shù):
PolyPen RP 410 UVIS:NDVI、SR、綠度指數(shù)、MCARI、TCARI、TVI、ZMI、SRPI、NPQI、PRI、NPCI、Carter指數(shù)、SIPI、GM1。
PolyPen RP 410 NIR:NDVI、SR、MCARI1、OSAVI、MCARI、TCARI、ZMI、Ctr2、GM2
光源:氙氣白熾燈380-1050nm
光譜響應(yīng)半寬度:8nm
光譜雜散光:-30dB
光學(xué)孔徑:7mm
掃描速度:約100ms
觸控屏:240×320像素,65535色
內(nèi)存:32MB(可存儲8000組以上測量數(shù)據(jù))
系統(tǒng)數(shù)據(jù):16位數(shù)模轉(zhuǎn)換
動態(tài)范圍:高增益 1:4300;低增益 1:13000
GPS:內(nèi)置
通訊方式:USB
軟件功能:自動計算內(nèi)置植被指數(shù)、計算用戶自定義植被指數(shù)、實時顯示數(shù)據(jù)圖和數(shù)據(jù)表、數(shù)據(jù)導(dǎo)出為Excel、GPS地圖、固件升級,Windows XP及以上系統(tǒng)適用
光譜反射標(biāo)準(zhǔn)配件(選配):提供zui高的漫反射值(99%)。光譜平面涵蓋UV-VIS-NIR光譜,保證+/-1%的光學(xué)平面。用于光源和檢測器的校準(zhǔn)。
尺寸:15×7.5×4cm
重量:300g
外殼:防水濺外殼
電池:鋰電池,通過USB接口充電
續(xù)航時間:可連續(xù)測量48小時
工作溫度:0~50℃
存放溫度:-20~70℃
●參考文獻(xiàn)
1. A Niglas, et al. 2017. Short-term effects of light quality on leaf gas exchange and hydraulic properties of silver birch (Betula pendula). Tree Physiology 37(9): 1218-1228
2. M Ashrafuzzaman, et al. 2017. Diagnosing ozone stress and differential tolerance in rice (Oryza sativa L.) with ethylenediurea (EDU). Environmental Pollution 230: 339-350
3. M López-López, et al. 2016. Early Detection and Quantification of Almond Red Leaf Blotch Using High-Resolution Hyperspectral and Thermal Imagery. Remote Sens. 8(4): 276
4. PJ Zarco-Tejada, et al. 2016. Seasonal stability of chlorophyll fluorescence quantified from airborne hyperspectral imagery as an indicator of net photosynthesis in the context of precision agriculture. Remote Sensing of Environment 179: 89-103
5. VV Ptushenko, et al. 2015. Possible reasons of a decline in growth of Chinese cabbage under a combined narrowband red and blue light in comparison with illumination by high-pressure sodium lamp. Scientia Horticulturae 194: 267-277
6. VV Ptushenko, et al. 2014. Chlorophyll fluorescence induction, chlorophyll content, and chromaticity characteristics of leaves as indicators of photosynthetic apparatus senescence in arboreous plants. Biochemistry (Moscow) 79: 260-272