Inspection
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8220 Brabrand
Denmark


+45 86265677

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Inspection Technology

To cover the full range of inspection, particulate matters, closure integrity issues and cosmetic defects, InnoScan applies three main technologies:

  • Matrix Camera
  • Line Scan Camera
  • High-Voltage Leak Detection

Applying these complementing technologies facilitates the market-leading performance InnoScan machines are known for.

Matrix Scan

Shape or pattern recognition

A Matrix Camera is a commonly used imaging technology in the industry, yet best known for the recreational application. The camera sensors are organized in a matrix (grid), hence the matrix camera composes images of objects in a similar manner as the human eye perceives.

For inspection, InnoScan applies a Matrix Camera when shape or pattern recognition is required, e.g. inspection of cosmetic defects.

Camera sensors
The camera sensors are organized in a matrix
Object
Image construction
The Matrix Camera composes images of objects in a similar manner as the human eye perceives.

Line Scan

For precision imaging purposes

The Line Scan Camera is a high-resolution imaging technology used for precision imaging purposes. In contrast to the Matrix Camera, the Line Scan Camera sensors are organized in one single column enabling the camera to acquire several thousand lines per second. The image of a Line Scan is constructed by stitching the acquired lines together. The Line Scan Camera is suitable for imaging moving objects and 'unwrapping' three dimensional surfaces into two dimensional images.

For inspection, InnoScan uses Line Scan Cameras for high-resolution imaging of defects to the size of 50 μm, e.g. inspection of particulate matters.

Camera sensors
The Line Scan Camera sensors are organized in one single column and the camera is able to register several thousands lines per second.
Moving objects
The Line Scan Camera is suitable for imaging moving objects.
Image construction
The Line Scan image is constructed by stitching the individual lines.
Cylindrical surface
For inspection purposes, the Line Scan Camera can be used to make a perfect two dimensional image of a three dimensional container surface.
Image construction
The Line Scan image is constructed by stitching the individual lines.

HVLD

For detecting leaking cracks

High-Voltage Leak Detection (HVLD) is a robust method for detecting leaking cracks in the primary packaging material. The technology builds on the principle that glass is an isolator of the current, while the liquid/product is a conductor.

The Principle

The high-voltage is applied by dedicated electrodes on a predefined area. In the unbroken glass the current traverses along the glass wall hence, the measured current at the reference electrode is small due to the intrinsic resistance in the glass.

Leaking Crack

In case of a closure integrity breach, e.g. a crack in the glass, the system transforms to a short-circuit where the current traverses along the path of least resistance.  In this case, the current measured at the reference electrode is larger compared to a undamaged container.