Photon Density Population Analyzer

Laser Scattering Radar Analyzer

The principle

In order to record the homogeneity of products, different particle sizes that generate different light diffraction, i.e. multi scattering effects, are recorded and counted by evaluation electronics and sorted into length classes according to the individual signal lengths.

The signals are recorded within the sensor at a wide coupling angle and a lens system and displayed as a signal length distribution.

The resulting distribution of all signal lengths in a time interval represents an extended signal distribution from the multi-scattering area.

The size-proportional signals are recorded and displayed from a particulate material system of disperse phase systems, which arise through multi-scattering effects under process conditions.

Alle Rohsignale werden abgespeichert und können direkt an die Prozessleittechnik des Betreibers weitergeleitet werden.

Practical course

The quality of the process can be determined and controlled on the basis of previously defined tolerances for the “fingerprint” of the measured product.

The system calculates the course of the current trend.

In the event that the tolerance limit is likely to be exceeded, the unit issues a warning message and determines the time until the limit is exceeded. If the trend changes again, the warning message is deactivated and the process is proceeding properly.

Application advantages for the user

Optimized monitoring and recording of e.g. crystallization processes,
Detection of the start point of germination and monitoring of the ratio of fines / roughness by means of optical density distributions and determination of the end point of crystallization. 

PAT monitoring as a fingerprint of batch and continuous processes, which guarantees consistent product quality. 

Control of automatic sampling, which reduces laboratory times 

Recording of agglomeration and deagglomeration processes

Technical advantages for the operator

  • Can be used between 50 µm and 600 µm
  • Static lens systems within the sensor, thus maintenance intervals of 5 years
  • Design of the wetted parts according to customer specifications, e.g. C 276
  • Polymer-free sealing systems, thus preventing the formation of crystals within the sealing chambers
  • Standard sensor diameters of 8, 12, 14, 18 and 25 mm and miniplant sensors
  • Sensor lengths from 150 to 4000 mm, so that existing reactors can also be equipped via manholes
  • Sensor pressure range: vacuum up to 16 bar
  • Can be used in media temperatures from minus 40 to plus 165 ° C
  • Optional expansion based on the application requirements for OEM customers is possible
  • Very best price / performance ratio
  • Manufacturer-independent, cost-effective installation by the customer!
  • Simple operation of the software