What are the dielectric constant and loss over the required frequency…
Room-temperature frequency sweep
Performance Testing · Electrical & Electrochemical
Dielectric Property Testing
Measure permittivity, dielectric loss and conductivity across frequency, temperature and electric-field conditions.
- Price
- from£90 per sample, excl. VAT
- Turnaround
- 7 working days Preparation and scope dependent
- Available platforms
- Novocontrol Concept 80Agilent 4294A
- Typical outputs
- Relative permittivityLoss factor and loss tangentAC conductivityFrequency and temperature response plots
Why this service
What Dielectric can help you understand
Dielectric property testing quantifies how a material stores and dissipates electrical energy. Frequency- and temperature-dependent data can reveal polarisation, relaxation, conduction and transition…
Where do relaxation or transition features occur?
Temperature-dependent spectroscopy
How do formulation, moisture or temperature change insulation…
Comparative dielectric screening
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Room-temperature frequency sweep
What are the dielectric constant and loss over the required frequency range?
- Best used when
- What are the dielectric constant and loss over the required frequency range?
- Typical result
- Relative permittivity
- Preparation note
- Declare biological hazards and confirm fixation, dehydration, temperature and disposal requirements.
Temperature-dependent spectroscopy
Where do relaxation or transition features occur?
- Best used when
- Where do relaxation or transition features occur?
- Typical result
- Loss factor and loss tangent
- Preparation note
- Confirm the applicable standard, dimensions, loading direction and number of replicates.
Comparative dielectric screening
How do formulation, moisture or temperature change insulation performance?
- Best used when
- How do formulation, moisture or temperature change insulation performance?
- Typical result
- AC conductivity
- Preparation note
- Confirm power, connections, operating state, access restrictions and permitted disassembly.
Common outputs
A result package matched to the decision you need to make
Fields, conditions, processing and file formats are confirmed before work begins.
Relative permittivity reported with the agreed units, sample reference and measurement conditions.
Loss factor and loss tangent supplied in a labelled format suitable for direct sample or condition comparison.
AC conductivity provided with the processing basis and quality checks agreed during technical review.
Frequency and temperature response plots included when selected in the confirmed reporting scope.
Sample requirements
What to provide before work begins
Provide representative, clearly labelled samples and identify the decision, feature or comparison that matters.
| Suitable sample | Submission requirement | Planning note |
|---|---|---|
| Biological / soft material | Provide fixed, preserved or otherwise stabilised material in the agreed container and medium. | Declare biological hazards and confirm fixation, dehydration, temperature and disposal requirements. |
| Test coupon / specimen | Provide labelled specimens prepared to the agreed geometry, orientation and surface condition. | Confirm the applicable standard, dimensions, loading direction and number of replicates. |
| Device / assembly | Provide a complete labelled device or assembly with drawings, interfaces and operating limits. | Confirm power, connections, operating state, access restrictions and permitted disassembly. |
Objective: state the decision, comparison or acceptance criterion the work must support.
Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.
Questions and answers
Common planning decisions
Short answers to issues that can change preparation, scope, timing or interpretation.
Do I need electrodes on the sample?
That depends on the fixture and material. Existing electrode material and geometry should be declared before booking.
What is the typical turnaround?
Typical turnaround is 7 working days after sample acceptance and method confirmation.
Configure the service
Send the information needed to scope Dielectric correctly
- Sample form, material, dimensions and quantity
- Feature or decision the result must address
- Required comparison, acceptance criterion or reference
- Preferred output and reporting depth