摘要:
System for the measuring of a concentration parameter of a solid/liquid mixture. The system comprises a measurement volume, a first antenna and at least one second antenna. The first and second antennas are each of the patch antenna type and each comprise a conductive base plate, a conductive strip and an insulating element The insulating element is located between the base plate and the strip, and the strip has on a head side a conductive connection to the base plate. The first and second antennas are attached by the conductive base plate to a wall of the measurement volume, the wall of the measurement volume being made of metal.