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Inspection and Monitoring
with EVK HELIOS Hyperspectral Cameras

Strict deadlines, high quality standards, and smooth processes: Continuous monitoring of material and product flows is a critical success factor in industrial processes. Advanced technologies are capable of providing valuable insights into production performance, efficiency, and quality, offering customers access to reliable real-time data.

The Challenge: Time-consuming and Inconclusive Laboratory Testing

The challenge of many product flows is that product samples analyzed in the laboratory only provide a partial representation of the material. While the evaluation is precise, it becomes problematic, especially with heterogeneous product flows. The result of a sample is that it is not representative for the entire material flow, making it challenging to precisely control and monitor quality.

Many machines and systems already integrate color cameras for inspection processes. However, these cameras provide limited information about the material flow. They can only evaluate objects based on their color but do not provide information about the chemical composition of the material.

The Solution: Sensor-based Monitoring with EVK Hyperspectral Imaging System for Real-Time Process Control

EVK offers machine builders plant developers, and plant operators in the food, recycling, mining, pharmaceutical and chemical industries, sensor-based solutions for quality control and efficiency enhancement.

Using Quantitative Chemical Imaging (QCI) with the EVK HELIOS hyperspectral camera, the powerful data processing platform EVK ALPHA, and the data analysis software EVK SQALAR, you can integrate your laboratory analysis directly into the production line. Hyperspectral imaging enables non-contact and non-invasive surface inspection and material analysis.

Unlike conventional color cameras, which can only capture color information, a hyperspectral camera has the unique ability to capture the chemical composition of an object. This provides valuable information about the properties and quality of the examined materials. To provide you with even more comprehensive information, we use Sensor Fusion, where for example a color camera and a EVK HELIOS hyperspectral camera are combined. These combinations provide detailed information about color, size, shape, and the chemical composition of the materials.

Inline measurement delivers valuable key data in real-time, allowing you to react quickly to quality changes and optimize your processes, thereby increasing efficiency and profitability.

Competitive Advantages
for Our Customers

Hyperspectral imaging allows you to take your inspection and monitoring systems to the next level. With our expertise and experience in sensor-based monitoring, we can support you in the implementation and commissioning of hyperspectral cameras and related software, helping you optimize your operational processes.

All Benefits at a Glance

In-line Quantitative Material Analysis in Real-Time

EVK HELIOS hyperspectral systems enable analysis of materials based on their chemical properties directly in the production line and provide key data in real-time.

Increased Efficiency and Profitability

Respond directly to changes in the process flow and optimize your efforts and results.

Short Time-to-Market with EVK Integrated Solutions

Receive hardware, software, and integration services from a single source, reducing your development time.

Sensor Fusion

Combining hyperspectral cameras with metal sensors or color cameras can optimize results in many industrial applications.

Flexible Application Development

EVK provides comprehensive application development support for companies planning to integrate hyperspectral cameras and inductive sensors in their machines. Our expert team provides their extensive knowledge already in the development phase and supports you in the conception, integration, and industrialization phases of your projects.

Sensor-based
Monitoring Solutions
in your Industry

Our applications are already successfully used in many industries. For example, in the cement industry, refuse derived fuels are used for incineration. The problem is the heating value and related parameters such as material moisture. Samples analyzed in the laboratory are not representative of the entire material flow, leading to unstable temperatures in the cement kiln.

Using Quantitative Chemical Imaging with EVK HELIOS hyperspectral cameras, you can capture the entire product flow and make real-time adjustments for a consistent temperature. EVK products are also used in the food industry for inspecting the ripeness of fruits and vegetables, and in the pharmaceutical industry for quality assurance.

Technical Details

Using Quantitative Chemical Imaging (QCI), EVK brings laboratory analysis directly into the production line. EVK transfers the methodology from the laboratory to EVK products to enable the same measurements for inline control - in real-time.

In the laboratory, measurements are very precise but often not representative of the entire material flow. There is a crucial difference between accuracy and precision. Although laboratory results are highly precise, what holds greater significance for quality control is accuracy. This means that a specific quality parameter can be determined more accurately with continuous monitoring than with a laboratory measurement.

The QCI classification algorithm allows for the quantitative analysis of multiple chemical components and measures the concentration of chemical compounds in a product. The hyperspectral camera systems classify the data from the material flow and assign them to a measurement value, which was pre-trained in the system using laboratory measurements. The accuracy is much higher, and information is provided in real-time.

More Info in
our Technology-Center

EVK Product Portfolio for Inspection and Monitoring Applications

EVK has developed groundbreaking technologies to enhance your internal processes and significantly improve efficiency. For surface inspection and consistent monitoring of your product flows, we offer a selection of our products.

Hyperspectral Imaging
in Inspection and Monitoring

EVK HELIOS hyperspectral cameras are available as flexible core cameras or with integrated classification systems. The cameras identify the chemical properties of different objects and materials to enable a non-contact and non-destructive analysis directly in the line. They operate with spatial resolution and in real-time.

Data Analysis
in Inspection and Monitoring

The EVK SQALAR software analyzes the chemical properties of individual objects qualitatively and quantitatively and helps to develop chemometric models for industrial applications. EVK STREAM Supervisor monitors industrial material flows at multiple points and the key data obtained provides information about material distribution, belt occupancy, and material composition.

Real-Time Image Processing
in Inspection and Monitoring

EVK ALPHA, an image processing platform for spectral data, combined with the EVK HELIOS EC is a powerful duo for in-line inspections and monitoring in real-time.

EVK Accessory Products for Integrated Sensor-Based Solutions

  • Hyperspectral Camera Lenses

    The selection of the right lens depends on factors such as the distance to the conveyor belt, material size, or incident light. Our EVK Professional Service Team supports you in selecting the right lens for your specific application.

  • EVK IRIL
    The lighting unit EVK IRIL is specially designed for hyperspectral camera applications, providing perfectly balanced light intensity for optimal image quality.
  • EVK Libraries
    We provide various software libraries for integrating our products into existing programs.

Inspection and Monitoring in Action

The videos show examples of how we can perform an at-line measurement of different materials. In a further step we integrate the camera system into the line, or as we call it - "We bring the lab into your line".

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