Precise and reproducible microwave measurement

Our advanced multi-frequency microwave measurement technology redefines process control performance. Installed directly downstream of the high-pressure pump, it delivers real-time, highly accurate, and reproducible measurements enabling immediate response to concentration changes. The result is a perfectly conditioned feed to the spray dryer, driving improved energy efficiency, reduced process variability, and consistently superior powder quality.
Engineered to support the full range of infant nutrition products, the system enables a single calibration curve across multiple recipes. Its robust sensor design, combined with tangible operational advantages, allows manufacturers to operate within tighter specifications, increase throughput, and ensure exceptional product consistency.

Technical Features

  • High accuracy < 0.2 % total solids (one product) 
  • Representative measurement results due to detection of the entire material flow in the pipeline
  • Low-wear and maintenance-free

 

Customer Benefits

  • Real-time monitoring reduces moisture load on the spray dryer
  • Optimises energy consumption of spay dryer
  • Cost reduction through optimised use of resources
  • Insensitive to viscosity, colour, or inhomogeneity
  • Hygienic, FDA/EHEDG-compliant design suitable for CIP/SIP

 

 

Berthold Labels

Food safety through international quality standards

FDA
EHEDG
3A

Measuring principle

The MicroPolar measuring system determines concentration by utilizing the dielectric properties of water. It emits low-power microwaves that primarily interact with water molecules in the medium. This interaction results in a measurable reduction of microwave energy, observed as phase shift and attenuation.Because these changes are directly proportional to the water content, the system enables highly accurate determination of concentration. Berthold’s advanced  multifrequency technology ensures exceptionally stable and reliable measurements, effectively eliminating interference from reflections and resonances.
With a maximum microwave power of just 10 mW, the MicroPolar system operates non-invasively ensuring that the material being measured is neither heated nor
altered in any way.

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