PolyPen RP 410手持式植物光譜測量儀通過內部光源(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在軟件中內置了幾乎所有常用的植物反射光譜指數公式,例如NDVI,PRI,NDGI等。測得的數據以圖形或數據表的形式實時顯示在儀器的顯示屏上。這些數據都可以儲存在儀器的內存里并傳輸到電腦里

●技術參數:
光譜檢測范圍:
PolyPen RP 410 UVIS光譜響應范圍為380-780nm
PolyPen RP 410 NIR光譜響應范圍為640-1050nm
內置植被指數:
PolyPen RP 410 UVIS:NDVI、SR、綠度指數、MCARI、TCARI、TVI、ZMI、SRPI、NPQI、PRI、NPCI、Carter指數、SIPI、GM1。
PolyPen RP 410 NIR:NDVI、SR、MCARI1、OSAVI、MCARI、TCARI、ZMI、Ctr2、GM2
光源:氙氣白熾燈380-1050nm
光譜響應半寬度:8nm
光譜雜散光:-30dB
光學孔徑:7mm
掃描速度:約100ms
觸控屏:240×320像素,65535色
內存:32MB(可存儲8000組以上測量數據)
系統數據:16位數模轉換
動態范圍:高增益 1:4300;低增益 1:13000
GPS:內置
通訊方式:USB
軟件功能:自動計算內置植被指數、計算用戶自定義植被指數、實時顯示數據圖和數據表、數據導出為Excel、GPS地圖、固件升級,Windows XP及以上系統適用
光譜反射標準配件(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%的光學平面。用于光源和檢測器的校準。
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
續航時間:可連續測量48小時
工作溫度:0~50℃
存放溫度:-20~70℃
●參考文獻
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