四 組成

主機(jī)、光纖樣品夾、電池充電器、4節(jié)AA鎳氫充電電池、USB通訊纜線、使用手冊(cè)。

可選配件:

20mm大探頭: 增加測量面積。 較大的樣本量可能對(duì)某些類型的樣本有用，例如苔蘚

增長版葉夾:

Ø 測量參數(shù)：葉綠素?zé)晒獗嚷?/span>——發(fā)射熒光在735nm/700nm的比值（CFR），或相對(duì)葉綠素含量mg· m^-2；

Ø 測量面積：直徑3mm的圓，外徑4mm，但對(duì)直徑小于3mm的樣品也可準(zhǔn)確可靠的測量；

Ø 分辨率：比值0.01或1 mg· m^-2；

Ø 重復(fù)性：依賴于信號(hào)強(qiáng)度，對(duì)信號(hào)強(qiáng)度低的樣品，建議使用多點(diǎn)測量的平均值，對(duì)信號(hào)強(qiáng)度高的樣品，差異通常為±0.03或更低；。

Ø 噪聲：<±0.02；

Ø 光源：LED 460 nm藍(lán)光二極管，半峰寬15 nm；

Ø 探頭：兩個(gè)固態(tài)高感傳感器，提供濾光片。同時(shí)提供兩個(gè)波長探頭（700nm~710nm，730nm~740nm）；

Ø 檢測：數(shù)控調(diào)制光，將背景光影響將至低。并對(duì)光源和檢測器進(jìn)行溫度補(bǔ)償；

Ø 存儲(chǔ)容量：2GB；

Ø 模式：單點(diǎn)測量，2~30個(gè)點(diǎn)去平均值，去除2σ區(qū)間外的平均值，或者中位數(shù)；

Ø 樣品接口：光纖傳感器，直徑4mm；

Ø 用戶界面：240 × 320 像素彩色觸摸屏；

Ø 輸出：USB 1.1；

Ø 溫度范圍：0~50 ℃；

Ø 電源：2節(jié)充電AA電池；

Ø 自動(dòng)關(guān)閉間隔：（無按鍵或下載）0~20分鐘可選；

Ø 大?。?/span>12 cm × 9 cm × 3 cm；

Ø 重量：0.16lbs 275g；

Ø 測量時(shí)間：5秒；

五、產(chǎn)地:美國

六、參考文獻(xiàn)

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Tapani Repo, Samuli Launiainen, Tarja Lehto, Sirkka Sutinen, Hanna Ruhanen, Juha Heiskanen, Ari Laurén,

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挪威云杉和蘇格蘭松樹苗

Johanna Riikonen, Nelli Kettunen, Maria Gritsevich, Teemu Hakala, Liisa Särkkä, Risto Tahvonen, (2016)

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Environmental and Experimental Botany Volume 121, January 2016, Pages 112-

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Anshu Rastogi, Marcin Stró?eckia, Hazem M. Kalaji, Dominika ?uców de Mariusz, Lamentowicz, Rados?aw

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of peatland vegetation Environmental and Experimental Botany Volume 160, April 2019, Pages 71-80

CAM植物 - 仙人掌

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IN SOUTH AFRICA: BASIS OF HOST SELECTION IN THE 'STRICTA' BIOTYPE OF

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