Photographic leaf area meter

Product introduction:

YMJ-P (computer version) photographic leaf area meter consists of image acquisition equipment and image processing software. It uses the company’s newly developed image recognition software. According to leaf contour feature extraction, graphic-to-object conversion, edge detection and other technologies, it can vividly and quickly obtain the measured leaf area, circumference, number of wormholes and other parameters. Compared with traditional leaf area, it has faster and simpler measurement, more vivid and objective results, diverse data and greatly reduces the errors caused by human operation.

Main technical parameters:

Measurement parameters: leaf area, perimeter, maximum leaf length, maximum leaf width, rectangularity, concavo-convex ratio, sphericity, shape coefficient, number of wormholes, wormhole area, etc.

Applicable scope: various common leaves with complete or wormholes

Measurement range: 1-600 square centimeters

Leaf length: 0-290mm

Maximum leaf width: 0-210mm

Measurable wormhole range: not less than 0.1 square centimeters

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

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

Stability: change <±2% within one year

Average response time: 100ms

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

Host parameters:

Software system: WINDOWS 7 and above

Memory at least: 2GB, 4GB recommended

Hard disk: 50GB, 100GB or more recommended

Interface: USB-A

Image acquisition instrument parameters:

Camera resolution: 2592*1944 pixels

Auto/manual focus: manual

Fill light: high brightness LED

Stepless dimming: not supported

Lens support rod can be retracted: yes