Hk13

Microwave Resonator, Continuous In Line Moisture measurement Description The microwave resonance measurement uses the electromagnetic energy stored inside a resonator to determine the water content of a product. Via a non conducting window, the resonator field is coupled into the material located in front of the resonator. This so called leakage field is not radiated. Depending on the dielectric properties of the product, the shift of resonance frequency and bandwidth of the resonator is used for measurement. The ratio of bandwidth and frequency shift is density independent. The measurement is highly suitable for bulk material.