An essential criterion for the quality of products is the material moisture.The accurate and fast awareness of the moisture content of the running production process is needed to minimize the energy costs and the ecological damage. Only by measuring the moisture accurately and fast, a stable production quality in the laboratory and online can be achieved in the process. The physical principle of the TEWS instruments is based on the patented microvave resonance technique. There are some important advantages in comparison with other methods:
very fast measurement (< 1sec),
very accurate by the high selectivity on water,
independent of density and weight,
non-destructive (very small microwave power of < 10mW),
independent of the colour, the structure and influences of surface of the product,
determination of the core moisture without grinding,
long-term stable and in a wide range of sort-independent calibrations,
no influence of ions and salts.
The content of water is determined by the shift and the damping of the resonance frequency peak. There is no warming-up of the samples due to the low energy of less than 10 Milliwatt. Microwaves penetrate the whole product. So the whole physical bound water will be detected - the core and the surface water.
Our instruments can be used for the control of process steps like mixing, pressing, moistening and drying and for quality control. You can achieve short amortisation periods by the accurate setting of the moisture parameters.
By using our process instruments you can control your devices online.
Microwave Resonator Method
The principle is based on the dipole behaviour of water molecule.
A harmonic electromagnetic resonator field is built up by a microwave generator. The water of the product interacts with the field. The changes of the field are recognized by a detector, calculated by a CPU and stored and displayed.
