The company shows the advantages of Berthold's measurement solutions for microwave measurement. The advantages are:
• Online total solids or density measurement
• Optimisation & control of the production process • Cost reduction through optimised use of resources
• Optimised pump utilisation avoids blockages and ensures optimum efficiency • Non-optical measurement, not sensitive to contamination therefore no cleaning required
• Not sensitive to film build-up
Typical applications in food industry are gummy bears, fruit gummy, and jelly deserts
The measuring principle The microwaves pass through the product to be measured, causing rotation of the free water molecules. They have excellent dielectric properties. This rotation causes the microwaves to slow down (phase shift) and decrease in amplitude (attenuation), resulting in a very accurate measurement of the water content. Thanks to the multi-frequency technique used by Berthold, the measurements are highly reliable and stable and are not affected by reflectance or resonance. The integrated reference line provides excellent compensation of the influence of environmental parameters. As the device generates very low power microwaves (about 0.1 mW), the measured product does not undergo any temperature rise or changes. The radio licenses for the system have been approved by the FCC, IC and ETSI