Dry Powder

SPECTRA 3D - Dry Powder

Dry Powder inspection is used for product control of powders in very small quantities. Particularly in the case of small doses, inspection by means of a checkweigher is not sufficient to ensure the presence of the correct amount of active ingredient. By using the SPECTRA 3D and SPECTRA HR product controls, a topographic colour image of the blister is obtained, which enables a precise evaluation.

Inspection criteria and objects

Inspection objects:

  • Powder in partially filled cups, for example pellets
  • Powder in completely filled pockets

Examination criteria:

  • Presence
  • Quantity
  • Contaminant of the sealing surface
  • Colour and contaminant of the powder

Advantages of the Dry Powder application

The SPECTRA 3D inspection inspects the smallest quantities with low tolerances and can detect even the smallest contaminants in combination with the high-resolution SPECTRA HR inspection. An implemented mask tracking is used for the correct detection of the film position. In addition, the volume data can be stored for productivity analysis. The system can be manufactured in a wide variety of designs and thus offers maximum flexibility.

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Software facts of colour detection

The result on the line is something to be proud of – production and format documentation as well as analysis of lane and cup filling offer you unique opportunities to detect errors in the infeed and reduce ejection. This is made possible by visualisation on the software interface.

The image memory works with up to 50 images, based on which an individual system suggestion for parameter limits is automatically created. This offers greater safety and simpler operation than standard limits to be adjusted by the user.

The automatic learning run enables a fast transition to production, as object position, blister geometry and product colour are automatically recognised. Of course, a manual learning run is also possible.

Automatic mask tracking compensates for trigger differences on intermittent machines.

The comprehensive audit trail and global parameter limits for extra high safety are fully 21 CFR Part 11 compliant.

The electronic illumination regulation is set in 16 illumination levels by means of a simple measuring line. This allows the optimum contrast to be achieved for inspection of colour values; the format-related settings allow high flexibility on the line.

Software of the Dry Powder application

For the inspection of the powder, each image information is corrected by the angle of the triangulation. 

The software works with mask tracking to ensure the film position. 

In addition, the volume data of each cup is stored to allow later analysis of the filling.

Evaluation of a blister filled with blister. The software recognises the faulty pockets despite the uneven filling scheme.

Evaluation of powder pockets that are completely filled by wiping. Missing powder is detected by the system.

Technical data - Hardware

 

Laser technology

  • Laser class 1 (normal operation)
  • Wavelength 660 nm
  • Beam angle 30°
 
 
 
 
 
 
 

Camera 3D

  • Camera technology: 3D camera
  • Camera interface: GigE
  • Camera resolution: 1,536 pixels per line
  • Evaluation speed in frames per minute: 900 (at 1000 lines)
  • Max. foil width per camera: 160 mm
  • Height resolution: 0.1 mm
    128 greyscales height
  • 224 objects per image
  • Format memory: >1,000
  • Number of cameras: 1 – 3

Kamera 3D-Hochauflösend

  • Kameratechnologie: 3D Kamera
  • Kameraschnittstelle: GigE
  • Kameraauflösung: 1.536 Pixel pro Zeile
  • Auswertungsgeschwindigkeit
    in Bilder pro Minute: 450 (bei 1000 Zeilen)
  • Max. Folienbreite pro Kamera: 80 mm
  • Höhenauflösung: 0,05 mm
    128 Graustufen Höhe
  • 224 Objekte pro Bild
  • Formatspeicher: >1.000
  • Anzahl Kameras: 1 – 3