Spectroscopic Leaf Area Index (LAI) Sensor MIJ-15LAI TypeII/K2-MIJ-15LAI TypeII/K2

Spectroscopic Leaf Area Index (LAI) Sensor MIJ-15LAI TypeII/K2
Japan Environmental Measurement Co., Ltd.

About This Product

■Summary When PAR (400-700nm) and NIR (700-1,000nm) are reflected and absorbed by chlorophyll within a leaf, the ratio of the transmitted light has a correlation with LAI.In other words, we adopted a spectroscopic measurement method (Patent No. JP5410323B22014.2.5). It is possible to stably measure photosynthetically active radiation (PAR) absorption rate by LAI and canopy leaves regardless of the weather, and it is possible to obtain continuous data simply by installing this device inside the canopy, without installing a target sensor outside the canopy.

By installing this device together with a data logger, annual changes in LAI can be measured unattended, and if you use a portable type, you can carry it around and measure over a wide area.

■Features・True LAI measurement that responds only to areas containing chlorophyll
・True LAI measurement is possible by neglecting PAI (PAI: measurement value including dead leaves, branches, trunks, etc.)
・The world's only sensor that measures the light transmitted through the tree canopy at a viewing angle of 180 degrees with wideband PAR=400-700nm and IR=700-1,000nm, and adopts a relationship in which the intensity ratio of PAR and IR correlates with LAI.
- Much more accurate than the fisheye lens type
・The only sensor that can continuously and automatically observe changes in LAI over time (must be combined with a data logger)

Model
There is 1 model available for this product.

Product
Spectroscopic Leaf Area Index (LAI) Sensor MIJ-15LAI TypeII/K2

Handling Company
Japan Environmental Measurement Co., Ltd.

Categories

Sensors

Optical Sensors

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Last viewed: 20 hours ago

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1 Models of Spectroscopic Leaf Area Index (LAI) Sensor MIJ-15LAI TypeII/K2

Image	Part Number	Price (excluding tax)	LAI calculation formula	Pin assignment	Main material	Operating temperature range	Incident angle characteristics	Output	Rotation angle characteristics	Shape	Response speed	Temperature characteristics	Measuring range	Unit of measurement	Weight
	MIJ-15LAI TypeII/K2	Available upon quote	LAI=2.80In (NIR/PAR) +0.69Enter this formula at the time of shipment. I am. Kume et al. (2011) JPlantRes124:99_106.	White/output+, black/output-	Housing: A5052, Covering: Alumite, Diffusion plate: PTFE	-40~80℃	<±1.5%at0~79° (<-50%Peakat80~89°)	Voltage (Calibration factor expressed as ###.##μE/mV on the label) Typical sensitivity PAR/10mV@2300uE,NIR/5mV@1300uE	Azimuth error: <±0.5% over360°at60°elevation	126 (W), 60 (D), 49 (H)	0.2uSec	<±0.1%/DEG	0~5,000μE	PAR and NIR are uE (μmol・S-1・m-2), LAI is dimensionless	Approximately 500g

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