What is the d33 coefficient?
Single-point d33
Performance Testing · Electrical & Electrochemical
Piezoelectric Coefficient and Performance Testing (d33)
Measure the direct piezoelectric charge coefficient d33 and compare poling or processing performance.
- Price
- from£75 per sample, excl. VAT
- Turnaround
- 8 working days Preparation and scope dependent
- Available platforms
- Piezotest PM300
- Typical outputs
- D33 coefficientPoint-to-point variationMean and repeat statisticsPoling direction and test-condition record
Why this service
What d33 can help you understand
A d33 meter applies a small dynamic force and measures the generated charge. It provides a rapid direct coefficient for suitable poled specimens, while full tensor or frequency-dependent behaviour…
How uniform or repeatable is the piezoelectric response?
Multi-point mapping
How do composition, poling or ageing change performance?
Batch or process comparison
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Single-point d33
What is the d33 coefficient?
- Best used when
- What is the d33 coefficient?
- Typical result
- D33 coefficient
- Preparation note
- Declare biological hazards and confirm fixation, dehydration, temperature and disposal requirements.
Multi-point mapping
How uniform or repeatable is the piezoelectric response?
- Best used when
- How uniform or repeatable is the piezoelectric response?
- Typical result
- Point-to-point variation
- Preparation note
- Confirm the applicable standard, dimensions, loading direction and number of replicates.
Batch or process comparison
How do composition, poling or ageing change performance?
- Best used when
- How do composition, poling or ageing change performance?
- Typical result
- Mean and repeat statistics
- 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.
D33 coefficient reported with the agreed units, sample reference and measurement conditions.
Point-to-point variation supplied in a labelled format suitable for direct sample or condition comparison.
Mean and repeat statistics provided with the processing basis and quality checks agreed during technical review.
Poling direction and test-condition record 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. |
| Solid / component | Provide a clean, stable and clearly labelled specimen with the target face or region identified. | Confirm dimensions, cutting permission and whether the original geometry must be preserved. |
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.
Must the sample already be poled?
Yes for a standard d33 measurement. Poling can be a separate preparation scope when feasible.
What is the typical turnaround?
Typical turnaround is 8 working days after sample acceptance and method confirmation.
Configure the service
Send the information needed to scope d33 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