Proceptor® Dielectric Analyzer - Overview

 Dielectric
    Analyzers

 Viscometers

 Rheometers

 Company
    Information
 

• Reliably measures dielectric constant and electrical conductivity of fluids over a broad range of frequencies.
• Uses the data to report chemical concentrations of mixtures in real time.
• Employed in the US and abroad by manufacturers and users of polymer resins, compounds and other fluids.
• For quality monitoring and process control.
• Improves product quality, process understanding, production yield and profits.

The heart of the Proceptor system is the in-line sensor, which is a ceramic cylinder with metal electrodes plated onto its inside surface. Process liquids flow through the hole in the sensor, contacting the electrodes. Fringing electric fields extend from the electrodes into the process material. The sensor is clamped between gaskets in a steel housing assembly. External electronics apply alternating voltages to the electrodes and measure the resulting capacitance and resistive currents. The computer uses the information to calculate the relative permittivity (dielectric constant)and electrical conductivity of the process material over a range of frequencies from around 100 Hz to 100,000 Hz. Permittivity and conductivity are well-defined material properties that vary among materials due to differences in their molecular and other structure.

Measurements of these electrical properties serve to identify the compositions of chemical mixtures. The sensor was designed for measuring additives and fillers in polymer melts during processing, and it can also be used for a variety of other flowing liquids. Most polymers are relative non-polar and they therefore have low permittivities, between 2 and 4. Fillers and additives are more polar and have higher permittivities. The higher the concentration of additive, the greater the permittivity of the mixture.

The Proceptor in-line dielectric analyzer is a quality monitoring and process control tool for polymer producers, compounders, and makers and users of others materials.

Benefits
In-line, real-time indications of additive and filler concentrations
Continuous monitoring for process fluctuations and off-spec product conditions.
Expands understanding of processes
Improves process control effectiveness
Increases production yields and product quality
Helps maximize production efficiency and profits.

Features

In-line - measures the properties of materials under standard processing conditions
Real-time - responds quickly to changes in the properties of process materials
Robust - withstands very high temperatures and pressures, and harsh chemical environments