Because of the different powder shapes, the Chengdu Jingxin JX-2000A image analyzer is selected by means of laser particle size analyzer, which can achieve more accurate and accurate grain size and control and analyze product quality. The system consists of an optical microscope, a USB camera, image analysis software, a computer, and a printer.
The main process of image analysis is: the sample is magnified by microscope, the image of the particle shape is captured by the camera and transmitted to the computer. The morphology of the powder particles is directly observed on the computer, and the number and area of ​​the particles are obtained through calculation and analysis by proprietary software. Distribution data and images such as circumference, diameter, volume, aspect ratio, and aspect ratio. At the same time, it has data distribution charts such as D10, D50, D90, D97, average particle size and surface area. The test results are saved by the computer display, and the particle size distribution data and the particle shape image can also be printed.
Field of application
1. Powder materials: diamond, silicon carbide, wollastonite, quartz powder, barium sulfate, graphite, lithium cobalt oxide, boron carbide, white corundum, cerium oxide mica powder, carbon powder, metal powder and other mineral powders.
2. Means and methods for verifying other granularity tests.
Instrument characteristics
The software is powerful and can be used to design special analysis software such as abrasives and wollastonite according to the special requirements of the industry. The full-plane achromatic objective lens has a maximum resolution of 0.07 μm, a maximum optical magnification of 1600 times, and a maximum magnification of 4000 times for image printing (A4 format paper). It can also output test reports in various formats as needed.
Indicators and performance
1. Test range: 0.5～3000μm
2, the image maximum magnification: 4000 times
3, the maximum resolution: 0.1μm
4, digital camera (CCD): 3 million pixels
5, microscope: configuration transmission microscope
6, scale scale: 10μm
7. Analysis items: particle size distribution, aspect ratio distribution, circularity distribution, etc.
8, software operating environment: Windows / XP / Vin7
9, interface mode: USB mode
Particle image test principle
The particles are imaged on the imager and the smallest unit that makes up the image is the pixels, each pixel having a specific size. By counting the number of particles and the number of pixels contained in each particle, the diameter of the equi-area circle of each particle, and the aspect ratio are calculated, and then all the particles are counted to obtain information such as the particle size distribution.
Powerful image processing and analysis software
1. Image processing function: It can perform brightness, contrast adjustment, gradation conversion, color conversion, segmentation, deletion, rotation, smoothing, cutting, pasting, filtering, scaling, filling and other processing on the image. It is also possible to batch process multiple images, increase the number of particles, improve the representativeness of the sample, and make the processing result more accurate, true and reliable.
2, data processing function: After processing the image, the computer automatically counts the number of particles, area, perimeter, volume, diameter, circularity distribution, aspect ratio distribution and particle size distribution data and graphics.
3, printing function: can print original image, Chinese and English two kinds of analysis results report (including particle size distribution
Data, distribution pattern, number of particles, aspect ratio, etc.
Imager software function introduction
1, image acquisition: can adjust the image height, width, resolution and so on.
2, image analysis processing:
(1) Tone processing: grayscale, tone adjustment, brightness, contrast adjustment;
(2) Image correction: horizontal mirroring, vertical mirroring, 90 degrees (counterclockwise), 90 degrees (clockwise), rotation, zooming in, zooming out, scaling, etc.
(3) Unit of measurement: micron, millimeter, centimeter, inch (optional);
(4) Image enhancement: contrast balance, expansion, corrosion, etc.;
(5) Image processing: image sharpening, edge smoothing, binarization, area filtering, boundary filtering, analysis target erasure, hole filling, manual erasure, manual connection, particle attribute viewing, etc.
3. Before and after image processing
4, set the ruler grid, intuitive particle size
5, the results show, print a variety of data reports
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