Micro-Polar
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Microwave measurements MICROWAVE TECHNOLOGY Moisture, dry substance and concentration

MicroPolar – Microwave measurement technology Areas of application The microwave measurement technology from Berthold T ­ echnologies­­is used to measure the concentration, dry substance or moisture content in the most varied types of products during ongoing production - either on conveyor belts, in chutes, in pipes or in vessels. Our microwave systems can be used across a wide range of very different industries such as the food industry, power stations, mines and papers mills as well as many more. The selection of sensors and technical features such as dynamics, frequency etc. is...

reference line control unit Microwaves penetrate the material to be measured. The dielectric constant of the material indicates the influence on the microwaves. The dielectric constant of water is 20 times larger in comparison to other materials. This results in a strong interaction of the microwaves with water which we then measure as attenuation and phase shift. In this way the water content can be very accurately determined. The multi-frequency technology used by Berthold Technologies guarantees very stable and reliable measurements which are not affected by interfering reflections or...

Measuring suspensions, solutions and pastes Determining the dry substance in a wastewater pipe – LB 566 with flow cell. Concentration measurement of a soap solution – LB 566 with container probe. MicroPolar – an excellent system Greater efficiency, process stability and quality: MicroPolar measures the density, concentration, dry substance or water content in fluids, suspensions, pastes or powders online. This excellent system is typically used in power stations (flue-gas desulfurization), in wastewater treatment plants as well as in the chemical, food and pulp & paper industries. The...

Control unit Control unit Flow cell HF cable quad Container probe Reference line Measurement set-up on the pipe Measurement set-up on the vessel The flow cell is integrated into the existing pipe system. Since the microwave transmitter and receiver are attached on opposite sides of the flow cell, the entire cross section of the material is measured. A highly representative measurement can be guaranteed as a result. The container probe is integrated into the side of the vessel, meaning that the product circulates around the transmitter and receiver antenna. The microwaves are emitted in a...

Flow Cell ■ measures ■ robust the entire cross section of the pipe variety of designs for the nominal diameters of the different pipes DN 50...150 lining made of abrasion-resistant Teflon abrasion-resistant polymer material reference line flanges available Container probe with flushing device ■ extremely abrasion-resistant polymer reference line flushing device flanges available

Monitoring the water content of dairy products Concentration measurement of milk of lime The online water-content measurement in the case of cream cheese, for example, allows for optimal control of the separator. The water content can be controlled exactly­ and compliance with legal regulations is guaranteed. MicroPolar monitors the dry substance of milk of lime or limestone suspension during ongoing operation. The mixture ratio can be set to the optimal level - the prerequisite for an efficient process flow. Water-content measurement in a dairy plant – LB 566 with flow cell Concentration...

Measuring bulk materials Moisture measurement of wood chips – LB 568 with horn antennas and radiometric area weight compensation. The MicroPolar measures the moisture of different bulk materials online. The measurement takes place on: The antennas do not come into contact with the bulk material and for this reason they are never subject to any wear and tear. The high dynamics also allow for measurements of high material layers. The used microwave technology allows for the non-contact measurement of the entire cross section of the material leading to precise and representative real-time data...

Measurement set-up on the conveyor belt + Microwave receiver Ultra­ sonic sensor Combine all three technologies in order to monitor both- the m ­ oisture as well as the bulk d ­ ensity. The density signal is p ­ rovided by a second current o ­ utput parallel to the moisture. In this way, for example, the loading of trucks or the feeding of furnaces can be optimally regulated. Examples of the successful use of MicroPolar: Microwave transmitter ■ wood OPTIONAL The simplest way to measure moisture. The antennas are installed above and below the conveyor belt. The entire cross-section of the...

Antennas and measuring chute Live measurement ensures optimal process control The precise monitoring of the moisture content at the loading and unloading stage ensures compliance with the delivery conditions. It allows for optimal process control with a cost-efficient use of energy in the case of burning and drying processes and reduces the reject volume due to live measuring during production. The installation of the system is simple and can be done without process downtime. The system works reliably and is not adversely influenced by dust, temperature or colour. Horn antenna ■ optimal ■...

Technical data Horn antenna Material Stainless steel, microwave window made of polycarbonate Ambient temperature (operation and storage) 1 x HF connection, max. cable length: 4 m (LB 567, LB 568) Spiral antenna Material Stainless steel, polymer Ambient temperature (operation and storage) 1 x HF connections, max. cable length: 4 m (LB 567, LB 568) Measuring chute Chute material variants 1. Polypropylene homopolymer (PP-H) 2. Polyvinylidene fluoride (PVDF) Chute components - chute set up - mounting plate - brackets - two HF angle connectors - fixing material Temperature range Ambient...

MicroPolar control units The heart of our measuring systems is the control unit. This is the result of a massive amount of experience and know-how. We offer this unit in three designs differing from each other in terms of frequency, frequency range and dynamics. This enables us to use the ideal technology, depending on the respective application and requirements. LB 566, LB 567 or LB 568 – our selection guide on the next page tells you which system is the right one for your particular application. Or talk to our experienced sales engineers. High Dynamic Version “MicroPolar ++” The control...