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LI-3100C
葉面積儀
Leaf Area Meter
http://www.licor.com/3100C
 LI-COR

說明:

 穿孔的葉片和具有不規則邊緣的葉片都可以利用LI-3100進行準確的測量,這在確定葉片的損害程度和昆蟲攝取葉片的量而言非常重要; 測量原理 在測量時,將葉片放置在移動的傳輸帶上,並且讓它們通過LI-3100。當樣本通過熒光光源時,樣品投射出的圖形通過三個鏡子反射到一個固定在儀器後部的固態的掃描照相機上。一種可調整的壓迫式滾筒能夠使捲曲的葉片變平並且使其恰當的到達兩個透明的傳輸帶之間。樣本的寬度通過掃描相機得到。以cm2爲單位的積累葉面積顯示在LED的顯示幕上。 3000A-01讀數控制單元可以連接到LI-3100上,目的是爲了額外的資料存儲和資料輸出。

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規格:

 LI-3100葉面積儀是測量大型和小型物體的快速、易作業系統,該儀器的測量精度爲1mm2或0.1mm2。

Resolution: 1 mm2 or 0.1 mm2 (adjustable)
Scanning Area: 1 mm2 Resolution: 1 mm x 1 mm; 0.1 mm2 Resolution: 0.300 mm W x 0.333 mm L
Display Capacity: 1 mm2 Resolution: 999,999.99 cm2; 0.1 mm2 Resolution: 99,999.999 cm2
Display: Full 8-digit LED
Width: 25.4 cm max; 1.5 to 3.0 mm min
Thickness: Up to 2 cm, user-expandable to 2.5 cm
Length: Unlimited
Conveyor Belt Speed: 8.0 cm/s at 60 Hz; 6.7 cm/s at 50 Hz
Light Source: 15 W fluorescent tube
Transparent Belts: Rugged clear vinyl
Power Requirements: 108-126/216-252 VAC, 48 to 66 Hz, 100 W max
Operating Temperature: +15 to + 55 °C
Storage Temperature: -20 to + 65 °C
Size: 25.0 H x 60.0 W x 73.0 L cm (9.8” x 23.6” x 28.7”)
Weight: 43 Kg (95 lb)

Accuracy

 
Sample Area
Resolution 10 cm2 3 cm2 1 cm2 0.3 cm2
1 mm2 ± 2.0% ± 3.0% ± 6.0% ± 10.0%
0.1 mm2 ± 1.0% ± 1.5% ± 3.0% ± 5.0%

Combined accuracy and precision to 99% confidence with correct calibration on verifiable shapes. Better accuracy can be achieved by calibrating the LI-3100C and/or placing the leaf on the middle section of the belt. Use the 0.1 mm2 resolution for conifers, roots and other similar objects and expect the accuracy to be about 5% less than normal leaves.