Photographic leaf area meter YMJ-P

YMJ-P photographic leaf area meter (computer version)

Product Introduction:

The YMJ-P photographic leaf area meter (computer version) consists of image acquisition equipment and image processing software. It uses our company's newly developed image recognition software to extract leaf contour features, convert graphics to physical objects, and detect edges. It can vividly and quickly obtain parameters such as measured leaf area, circumference, and number of wormholes. Compared to traditional leaf area, it has the advantages of faster and more convenient measurement, more vivid and objective results, diverse data, and greatly reduces errors caused by human operation.

Main technical parameters:

Measurement parameters: leaf area, perimeter, maximum leaf length, maximum leaf width, circularity, aspect ratio, sphericity, shape factor, number of wormholes, wormhole area, etc

Scope of application: Various common leaves that are complete or contain wormholes

Measurement range: 1-600 square centimeters

Maximum leaf length: 0-290mm

Maximum leaf width: 0-210mm

Segmented measurement of large blades: It is possible to measure blades that exceed the range in segments, and the system will automatically merge two images and comprehensively analyze various parameters

Measurable wormhole range: not less than 0.1 square centimeters

Measurement resolution: Area: 0.001cm ² Length and width: 0.01cm

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

Host storage capacity: depends on the hard disk space of the host device, with an average of 1-3MB per group

Stability: Change within one year<± 2%

Average response time: 100ms

Application temperature: -30 ℃ -80 ℃; Relative humidity 0-100%

Cloud platform data transmission: Data can be uploaded to the cloud platform, and historical data can be retrieved according to any time period and leaf category. The measurement time leaf area, circumference, maximum leaf length, maximum leaf width, rectangularity, concavity convexity ratio, sphericity, shape coefficient, number of wormholes, wormhole area, and other data can be viewed. Bar chart analysis can be performed on different parameters, and data can be exported in EXCEL spreadsheet format. Data can be displayed according to the selected time period, analyzed in tables, bar charts, and downloaded online.

Host parameters:

Software system: WINDOWS 7 and above

Minimum memory: 2GB, recommended 4GB

Hard drive: 50GB, recommended 100GB or above

Interface: USB 2.0

Image acquisition instrument parameters:

Camera Pixel: 16 million pixels

Automatic/Manual Focusing: Automatic

Fill light: High brightness LED

Infinite dimming: not supported