Dielectric Assessment Kit | SPEAG

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Genetron carries comprehensive dielectric measurement solutions from SPEAG. The Dielectric Assessment Kit (DAK) from SPEAG offers high-precision dielectric parameter measurements (permittivity, permeability, conductivity, loss tangent) from 4 MHz to 67 GHz for applications in the electronic, chemical, food, and medical industries.

The DAK product line features different probes solutions to measure thin-layer and bulk materials, solids, and small volumes of liquids and gels. 

 

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The dielectric properties of a material influence its electrical characteristics. Hence, accurate dielectric parameter measurements provide valuable insights to a material’s properties and characteristics. For example, the loss of a cable insulator, the impedance of a substrate, or the frequency of a dielectric resonator can be related to its dielectric properties.

 

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The dielectric properties of a material consist of two components, which is the complex relative permittivity (εr) and complex relative permeability (μr). The real part of the complex permittivity, also known as dielectric constant, is a measure of the amount of energy from an external electrical field stored in the material. The imaginary part, also known as the loss factor, is a measure of the amount of energy loss from the material due to an external electric field and is zero for lossless materials. The ratio of the imaginary part to the real part of the complex permittivity term is called the loss tangent tanδ and it represents ratio of the energy loss to the energy stored per cycle. The loss tangent is also known as tangent loss and dissipation factor.

 

The complex permeability also consists of a real part which represents the amount energy from an external magnetic field stored in the material whereas the imaginary part represents the amount of energy dissipated due to the magnetic field. Measurement on the complex permeability is only applicable to magnetic materials. Most materials are non-magnetic and thus, the permeability is very near to the permeability of free space.

 

 

 

The application of dielectric measurements go beyond the electronic industry. In the food industry, a material's dielectric parameters can determine its suitability to be used as packaging, or in the case of perishables such as meat and vegetables, their dielectric properties can be used to determine whether they have turned bad. Dielectric measurements are also widely used in the defence R&D field to find suitable materials that can be used as camouflage fabrics and paints that absorb radar energy. Dielectric measurements are also indispensable in the field of Material Science and Engineering which is on a constant quest to find novel materials that are thinner, stronger and lighter.

Genetron represents SPEAG in Singapore, Malaysia, Thailand, Indonesia and The Philippines. Do contact us for a discussion on how SPEAG's DAK can be used for your dielectric measurement solutions.

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