Sensor combinations

Multiple sensors can provide much more complex description about the analyzed particles based on different physical properties.

More accurate identification of sorted materials can result in more efficient separation, thus increasing applicability of such technology in different areas.

Combination examples

There are many combinations of all available sensors depending on material type, capacity and process requirements. The most common combination is the XRT X-ray transmission sensor, combined with the RGB color camera, the SWIR short wave hyperspectral infra-red camera or the XRF X-ray fluorescence sensor.

X-ray transmission and color

X-ray transmission technology functions by directing X-rays through materials and measuring the intensity of the transmitted photons. Different materials, due to their unique atomic densities, absorb X-rays to varying extents. High resolution color camera operates by detecting differences in reflected visible light from the material surface. By analyzing the transmitted X-rays and reflected light, the computing system can distinguish unique differences between materials, facilitating precise sorting of valuable components from waste.

Operating principies

  • X-ray Transmission (XRT) technology differentiates materials by atomic density as they move along a conveyor belt at speeds of 2-3 m/s. The system handles material sizes from 8 mm to 250 mm and operates with a capacity range of 15 to 450 tons per hour. X-rays pass through the material, and sensors capture the transmitted radiation to create a detailed density profile.
  • At the same time, high intensity lighting is directed to the surface of passing particles and high-resolution camera registers intensity of reflected light. The color sorting systems excel in distinguishing materials based on subtle color differences, achieving exceptional identification accuracy.
  • Leveraging powerful AI algorithms, the sorting system integrates and analyzes data from both sensors according to predefined hierarchy, to optimize sorting processes, ensuring enhanced efficiency and reliability.

X-ray transmission and hyperspectral infra-red

X-ray transmission technology functions by directing X-rays through materials and measuring the intensity of the transmitted photons. Different materials, due to their unique atomic densities, absorb X-rays to varying extents. Hyperspectral infra-red camera operates by detecting differences in reflected infra-red light from the material surface. By analyzing the transmitted X-rays and reflected infra-red light, the computing system can distinguish unique differences between materials, facilitating precise sorting of valuable components from waste.

Operating principies

  • X-ray Transmission (XRT) technology differentiates materials by atomic density as they move along a conveyor belt at speeds of 2-3 m/s. The system handles material sizes from 8 mm to 250 mm and operates with a capacity range of 15 to 450 tons per hour. X-rays pass through the material, and sensors capture the transmitted radiation to create a detailed density profile.
  • At the same time, high intensity infra-red lighting is directed to the surface of passing particles and the hyperspectral infra-red camera registers intensity of reflected light. The hyperspectral infra-red systems excel in distinguishing materials based on subtle differences in narrow infra-red wave bands, achieving exceptional identification accuracy.
  • Leveraging powerful AI algorithms, the sorting system integrates and analyzes data from both sensors according to predefined hierarchy, to optimize sorting processes, ensuring enhanced efficiency and reliability.

X-ray transmission and fluorescence

X-ray transmission technology functions by directing X-rays through materials and measuring the intensity of the transmitted photons. Different materials, due to their unique atomic densities, absorb X-rays to varying extents. X-ray Fluorescence technology operates by directing another X-rays onto the material surface. The energy from the X-rays excites the atoms within the materials, causing them to emit fluorescent radiation specific to each element present. By detecting transmitted radiation from XRT sensor and analyzing the emitted radiation from XRF, the system can identify the exact elemental composition of the materials, allowing for precise sorting.

Operating principies

  • X-ray Transmission (XRT) technology differentiates materials by atomic density as they move along a conveyor belt at speeds of 2-3 m/s. The system handles material sizes from 8 mm to 250 mm and operates with a capacity range of 15 to 450 tons per hour. X-rays pass through the material, and sensors capture the transmitted radiation to create a detailed density profile.
  • At the same time, another X-ray source is used for XRF analysis where different materials emit a characteristic radiation frequency allowing identification of chosen elements on the particle surface.
  • Leveraging powerful AI algorithms, the sorting system integrates and analyzes data from both sensors according to predefined hierarchy, to optimize sorting processes, ensuring enhanced efficiency and reliability.

AI-powered analysis

Comex multisensory sorting systems integrate advanced AI-driven analysis to detect even the most subtle variations in material properties that may be imperceptible to the human eye. This self-learning technology ensures continuous improvements in sorting accuracy, reducing operational downtime and increasing overall system performance.

Key features

Signals from both sensors can be used separately and independently to provide the required sorting results
Both sensors can be used according to predefined hierarchy in case one of them provides more important results for the final sorting decision for defined particles
The signals from the sensors can be used in data fusion models, utilizing combined multiple feature definition, to describe the sorted material in the most accurate way
AI powered models can support the process as an additional data analysis on either pixel or particle level
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