Economy Berlincourt piezoelectric meter PKD3-2000 to measure d33 of polymer PVDF, PVDF-TrFE, or piezoelectric ceramic materials. Two measurement ranges: 10 to 2,000pC/N, or 1 to 200pC/N, Force 0.25N, Frequency 110 Hz
it works great with both piezo ceramics and polymers such as PVDF and PVDF-TrFE or PLLA or polymer nanocomposites. Will also work for thin film on conductive substrate (silicon wafer with electrode) such as AlN aluminum nitride.
Other model includes PKD3-4000 with measurement range up to 7000 pC/N for single crystal PMNPT ceramic.
This unit comes with PolyK static force sensor to improve the measurement accuracy and reproducibility.
The sample fixture has M3 thread and it includes one set of hemisphere fixture and one set of flat fixture (8 mm diameter). You can also machine your own fixture easily as long as it has M3 connectors.
Come with piezo standard for calibrating the d33 meter.
In Stock, ship within 24 hours after order, ship from State College, PA 16803, USA
For video: http://youtu.be/l9KKBhBK2u0
Video Instructions: http://youtu.be/5mZe-V88t88
Lei Zhu, Yanfei Huang, et al Nature Communications "Enhanced piezoelectricity from highly polarizable oriented amorphous fractions in biaxially oriented poly(vinylidene fluoride) with pure β crystals" http://www.nature.com/articles/s41467-020-20662-7
During piezo d33 measurement, there is a static force and a dynamic force applied on the sample. The dynamic force 0.25N/110Hz is controlled by the meter, the static force is controlled by the user (how hard to move the top probe down to squeeze your sample). In most commercial d33 meters, the static force is controlled by the operator’s “finger” feeling. For soft and fragile polymers (PVDF, PVDF-TrFE, or PLLA, etc), electret, foam, or crystal, the static force can significantly the measured d33 value (see the d33 of PVDF and ceramic PZT under different static force), therefore, many users complained the reproducibility of d33 of polymer piezo materials measured with standard d33 meters. Similar issue is also surprisingly found in rigid piezoelectric ceramic PZT plate samples.