Measurement Services
EM Properties in terms of
Frequency
Temperature
Moisture Content
Density/Porosity
Concentration
Multi variables

EpsiMu® Measurement Services


For your convenience, we propose the EpsiMu® Electromagnetic Measurement Services for any type of material, in your desired frequency range. We provide quick and complete reports of the complex permittivity, permeability, conductivity, loss tangent and S-Parameters (S11, S21, S12, S22) of your materials. With EpsiMu®, you may determine the impact of external factors on the electromagnetic properties of materials, such as material ageing, temperature, density and moisture content.

Scroll through the images below to get to know our range of services.

Frequency Range

electromagnetic properties measurement services
electromagnetic properties measurement services
Measurement services of the lectromagnetic properties are available in the frequency range 1 MHz to 8 GHz for liquids, powders, foams; and 1 MHz to 18 GHz for all types of solid materials.
Temperature
electromagnetic properties measurement services
electromagnetic properties measurement services
With our Temperature Control System, especially develloped for the EpsiMu® cells, we are able to provide electromagnetic measurement studies from -30°C up to + 85°C (-22°F to 185°F) of any type of material. You may find a few references here and here.
Moisture Content
dry soil's low moisture content can be predicted through the electromagnetic properties
wet soil's high moisture content can be predicted through the electromagnetic properties
Entire range of moisture content (0% to 100% MC) can be characterized for porous or granulated materials, such as soils.
Density/Porosity
Permittivity and permeability measurement
Permittivity and permeability measurement
The density of a powder or soil can be characterized with a density equivalent to a pressure up to 2 ton/cm2. In many cases, the permittivity, permeability and conductivity of soils have a proportional relationship with density, being possible to extrapolate to higher unmeasurable densities.
Concentration
Permittivity and permeability measurement
Permittivity and permeability measurement
The addition of foreign substances in a solution or material generally influences the electromagnetic properties. For example, specific salt concentrations can decrease the growth of pathogenic microorganisms in food (Okoronkwo et al, 2014); since conductivity is largely impacted by salt concentration, this is a determinant factor for food quality. Moreover, permittivity is influenced by sucrose content (sweetness) and alcohol content, which determine the balance of a wine. We can establish a trendline to determine the concentration of a specific substance in your material or solution.
Multi variable studies
The electromagnetic properties of several material samples can be characterized as function of frequency and another parameter, to obtain a full variance spectrum. (Pictures above: Water in ethanol permittivity studies; from Neves et al, 2017 )