Piezoelectric Materials d33 Analyser
Fast, accurate and highly sensitive
Introducing our new Piezoelectric Tool for thin sheets, ceramics, polymers, composites
To complement our ESPY31 product launch we are pleased to announce a metrology tool which can measure the piezoelectric ‘d33’ coefficient of films, sheet, disks, wafers and more.
Our ESPY33 device has been developed with great attention to metrological accuracy and SI traceability to measure direct d33 piezoelectric coefficients. The device is suitable for characterising piezoelectric materials, such as piezoelectric ceramics, single crystals, piezoelectric polymers (e.g. PVDF), composites, and biological soft materials. Our instrument provides high precision and excellent measurement repeatability, with an accuracy quantified through the system’s traceable calibration. The ESPY33 contains an integrated force measurement cell positioned in perfect alignment with the sample fixture resulting in uniform on-axis, yet zero off-axis loads on the sample, ensuring highest precision in d33 coefficient measurements.
This tool provides a measurement of the direct piezoelectric constant for a variety of piezo materials. It is based on our patented* technologies which enable fast and accurate measurement of d33 – a fundamental piezoelectric materials property.
*GB2572334A
Reliable, accurate method of measuring an important materials property of piezoelectrics, which indicates the piezo materials’ ability to sense forces and loads or to change shape as an actuator.
Who will benefit from this technology?
Ideal for companies developing new materials like lead-free compositions alongside high temperature piezoelectrics in applications for aerospace and automotive pressure sensors and transducers to in vibrational energy harvesting, smart actuation and sensing, acoustic underwater fish finders, oceanography and medical ultrasound where a reliable and accurate method of measuring the piezoelectric constants is required.
This tool adds to our Piezotest tool, by providing a direct measurement of the d33 coefficient of materials, measurements traditionally carried out using ‘Berlincourt’ methods that are better suited to larger ceramic discs and rods. Our tool can readily assess films, sheets, and soft – polymer and biological materials accurately and traceably.
The benefits
Product features
| Parameter | Specification |
|---|---|
| Piezoelectric range | 0.05-2000 pC/N |
| Frequency range | 10mHz-500Hz |
| Static pre-load range | 0.1 – 10 N |
| Dynamic load range | 0 – 1000 mN |
| Repeatability | Under investigation |
| Reproducibility | Under investigation |
| Sample configuration | Typically, 5mm diameter to 25mm diameter, for ease of use. |
| Temperature and humidity | -20°C to 80 °C
10 % to 85 % RH |
| Excitation options | Waveform (triangle, sinusoidal), mechanical preload, ac amplitude, measurement time, unipolar/bipolar, current amplifiers’ sensitivity, pre-conditioning cycles |
