Photographic Leaf Area Meter YMJ-P

YMJ-P Photographic Leaf Area Meter

Product Description:

YMJ-P photographic leaf area meter (computer version) consists of image acquisition equipment and image processing software, using the company's newly developed image recognition software, according to the leaf contour feature extraction, graphic physical conversion, edge detection and other technologies, can image and quickly get the measured leaf area, perimeter, the number of wormholes and other parameters. Compared with the traditional leaf area, it is faster and easier to measure, the result is more objective, the data is diverse and the error caused by human operation is greatly reduced.

Main technical parameters:

Measurement parameters: leaf area, perimeter, maximum leaf length, maximum leaf width, roundness, concavity-convexity ratio, sphericity, shape coefficient, number of wormholes, area of wormholes and so on.

Scope of application: all kinds of complete or containing wormholes of common leaves

Measuring range: 1-600cm2

Maximum leaf length: 0-290mm  

Maximum leaf width: 0-210mm

Segmented measurement of large leaves: leaves exceeding the measuring range can be measured in segments, the system will automatically merge the two pictures and comprehensively analyse each parameter.

Measurable wormhole range: not less than 0.1cm2

Measurement resolution: Area: 0.001cm² Length, width: 0.01cm

Measurement accuracy: 1% (greater than 30cm²), 2% (less than 30cm²)

Host storage: Dependent on the host device's hard disc space, average 1~3MB per group.

Stability: <±2% variation within one year

Average response time: 100ms

Application Temperature: -30℃-80℃; Relative Humidity 0-100

Cloud platform data transmission: data can be uploaded to the cloud platform, historical data can be retrieved according to any time period and leaf category, you can view the measurement time leaf area, perimeter, maximum leaf length, maximum leaf width, rectangularity, concavity-convexity ratio, globularity, shape coefficient, the number of wormholes, the area of wormholes, etc., you can do a histogram analysis of the different parameters, support for the data in the form of an Excel table to export, according to the chosen Support data to be exported in the form of EXCEL table, data can be displayed according to the selected time period, support data to be analysed by table, histogram, etc., download online.

Host parameters:

Software system: WINDOWS 7 and above.

Memory: 2GB, 4GB recommended

Hard drive: 50GB, recommended 100GB or more

Interface: USB2.0

Image Acquisition Instrument Parameters:

Camera pixels: 16 megapixels

Auto/Manual Focus: Auto

Fill light: high brightness LED

Infinitely dimming: not support