Separador de colores: La gran revelación de la tecnología fotovoltaica

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The principle of color sorter is to use photoelectric technology to detect and separate color defects and differences to ensure product safety and quality. From the rice milling industry to food, agricultural, chemical, and mineral processing, color sorters are widely used to ensure product safety and efficiency.

Separador de colores: La gran revelación de la tecnología fotovoltaica

Color Separator Principle: Principles and applications

Color sorters use advanced photovoltaic technology to identify and separate colored defects and foreign matter in products. These machines utilize the interaction between light and matter for fast, accurate product inspection. Photometric technology is at the heart of color sorter compatibility, and its principles and applications are discussed in depth below:

Photometric Technology

  • Color sorters use light sensors to detect different wavelengths of light, such as visible and near-infrared light. These sensors consist of a transmitter emitting a specific wavelength of light and a receiver receiving the light as it passes through the product. As light passes through a product, its performance is affected by its color, shape, and texture.

Application of Light Measurement Sensing Technology in Color Sorting

  • Color sorters expose the product to multiple light sources and use light sensors to analyze the product for light. Different color defects and foreign matter absorb or reflect different wavelengths of light, creating unique sensor signals. By examining these signals, the color sorter can distinguish between good and defective products and remove faulty products from the production line. Photoelectric sensing technology provides a high degree of accuracy in color sorting, making it possible to detect minor defects that are difficult to see with the naked eye. The technology is evaluated in various industries, including food, agriculture, chemical, and mineral processing, to ensure product quality and safety.

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Principles of Color Separators: Application of Light Sensing

Photoelectric sensing technology plays a vital role in the compatible core of a color sorter. This technology matches light and electrical signals to detect and separate colored defects and fatalities accurately. Photoelectric sensing elements emit light of a specific signal wavelength, reflected or brightened when it hits the product surface. The photodetector captures this light and converts it into an electrical signal, then analyzes it based on spectral characteristics and intensity.


Advantages of photodetection sensing technology

  • Assistance: Photodetection sensing technology can quickly and accurately detect color differences, ensuring that products meet the highest quality standards.
  • Flexible: Sensing parameters can be adapted to different product types and defect characteristics to optimize separation results.
  • Contact: Photoelectric sensing technology is a non-contact technology that does not directly contact the product to avoid product damage or contamination.
  • High productivity: Color sorters using photoelectric sensing technology can process large quantities of products at high speeds to improve productivity.
  • Easy Integration: Photoelectric sensing technology can be easily integrated into automated production lines for automated detection and separation.

The principle of color selector: the use of light-sensitive measurement technology in color selection

Light illumination measurement technology is essential in color sorters, enabling the machine to accurately and efficiently detect and separate colored defects and foreign objects in the product. Color sorters use a light source to illuminate the product and use light illumination measurements. Different colored objects absorb or reflect different wavelengths of light so that light sensors can distinguish between different colored objects in the product based on the characteristics of the light detected.

Light sensing meters in many color sorters typically use a photodiode or an inductively coupled component (CCD). A photodiode is a semiconductor element that generates an electric current when it receives light, and a CCD is an array of photosensitive cells, each sensitive to a specific wavelength of light. The color sorter can be customized to particular colors and defects by adjusting the parameters of the light source and the photo illuminator.

Color sorter sensing technology continues to advance, from traditional monochromatic sensors to multispectral sensors to the latest hyperspectral sensors. Hyperspectral sensors can sense hundreds ofmultismultispectralaneously, providing finer color information and defect detection capabilities. These advances enable color sorters to handle increasingly complex color-sorting applications and enhance product quality and safety.

The principle of color selector: the use of light-sensitive measurement technology in color selection
Sensor TypePrincipio
PhotodiodeA semiconductor element receives light and generates an electric current
Additional Coupling Device (CCD)An array of photosensitive units senses specific wavelengths of light.
Hyperspectral SensorSimultaneous measurement of hundreds of wavelengths of light provides accurate color and defect information.


Photovoltaic technology drives color sorter compatibility.

The core of the operation of modern color sorters lies in photoelectric technology. Through the precise detection of photoelectric sensors, color sorters can recognize different wavelengths of light and accurately locate product features and foreign objects with high precision. The following describes the critical role of photoelectric sensors in the operation of the core technology:

Light source illumination

  • The color sorter projects a specific light source onto the product surface, such as visible light, infrared light, or laser light.
  • The different wavelengths of the light source correspond to the color and surface characteristics of the product, which facilitates the detection of defects or foreign objects.

Light Measurement Sensor Inspection

  • The color sorter has a static light sensor that receives light signals from reflected or infrared products.
  • The light meter converts the light signal into an electrical signal and digitally processes it to produce the colorimetric parameters of the product.

Processing image analysis

  • Color sorters use image processing technology to analyze the data captured by the sensor, including color, shape, texture, and other characteristics. This technology can identify color defects, foreign objects, or errors and classify and clear away unqualified products to ensure product quality.

Applying optoelectronic technology in color separation machines significantly improves product quality and safety while optimizing production efficiency. It can effectively find, in addition to foreign matter, and reduce the cost of the subsequent production process. In addition, the accurate color separation function can better meet different market and customer needs to create high-quality and competitive products.


Evolution of the color sorter principle: from mechanical to optoelectronic

The Challenges of Mechanical Color Separation

Early color selection techniques used a mechanical approach that utilized mechanical devices and color contrast to separate segregation. However, mechanical color selectors have many limitations, including:

  • Slow processing speed: mechanical operations take time, limiting throughput.
  • Low accuracy: mechanical components are limited because mechanical color selectors may not accurately differentiate between objects of similar color.
  • High maintenance costs: mechanical components are easily fatigued and require intermittent maintenance and replacement.

The Rise of Photoelectric Color Selection

Optoelectronic technology was developed to overcome the limitations of mechanical color selection. Photoelectric color sorters use a light source and sensors to detect and separate colored defects and impurities. This technology has the following advantages:

  • Fast processing speed: Optoelectronic sensors can quickly process large quantities of products, increasing productivity.
  • High accuracy: Optoelectronic color sorters can accurately distinguish subtle color differences to ensure product quality.
  • Low Maintenance Costs: Optoelectronic systems have higher reliability and fewer moving parts, thus reducing maintenance costs.

The application of photoelectric technology in color selection

Photoelectric technology plays a role in color selection through the following ways:

  • Light source: A vital light source illuminates the object to be selected and shows its color characteristics.
  • Sensors: Photoelectric sensors capture the reflected light and generate a sensory signal.
  • Signal Processing: The sensed signal is processed and analyzed to determine the color characteristics of the object.
  • Separation mechanism: Depending on the signal results, defective or impure objects are removed by pneumatic jets or other separation mechanisms.

Continuous Innovation and Progress

Color sorter technology constantly innovates to improve accuracy, efficiency, and reliability. The latest advances include:

  • Multispectral sensing: Uses multiple wavelength ranges to detect a broader range of colors.
  • Deep LearniMultispectralUtilizes artificial intMultispectralnology to improve detection accuracy further.
  • Intelligent Software: Automatically adjusts color selection parameters to suit different products and conditions.

As color sorter technology continues to evolve, the food, agricultural, chemical, and mineral processing industries will benefit from improved product quality, safety, and production efficiency.



In summary, the principle of color sorter is based on optoelectronic technology as the core, optoelectronic sensing technology to identify the object’s color and effectively separate objects with color defects or impurities. The evolution of the color sorter principle from the early mechanical to today’s optoelectronic has significantly improved detection accuracy and processing capacity, bringing significant quality improvement and production efficiency optimization to the food, agriculture, chemical, and mineral processing industries. Combined with the color sorter principle, companies have been able to revolutionize their product quality control processes to ensure product safety and consistent quality while at the same time improving production efficiency and injecting new momentum into industry development.

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How does the color sorter work?

  • A color sorter uses optoelectronic technology to detect color differences in materials. When the material passes through a light source and a photoelectric sensor, the sensor detects the reflected light and transmits the color information to the processor. The processor will judge according to the preset color parameters and separate the colored defects or impurities from the qualified products.

What are the advantages of a color sorter?

  • Improved product quality: Removing colored defects and impurities ensures the product meets standards and specifications.
  • Enhances food safety: detects and removes toxic or foreign substances that may be hazardous to health.
  • Improve Production Efficiency: Automate the color sorting process to save labor costs and increase production speed.

What are the applications of color sorters?

  • Food Processing: Remove discolored or moldy fruits and vegetables, meat, and seafood.
  • Agriculture: Detecting and separating impurities in seeds, grains, and legumes.
  • Chemical industry: Sorting and separating chemical powders and particles of different colors.
  • Mineral Processing: Sorting gemstones, diamonds, and ores, classifying them according to color grades.
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