Polarization-electric field hysteresis loop of a piezoelectric film.

[minaabbasi]

Hello,

I have piezoelectric film. I want to characterize ferroectricity. which exact equipment and circuit are used for measuring polarization-electric field hysteresis loop.

Thanks

 

[Achy47]

for your question! There are a few different pieces of equipment and circuits that can be used to measure the polarization-electric field hysteresis loop of a piezoelectric film. Some common options include a ferroelectric tester, an impedance analyzer, and a lock-in amplifier.

A ferroelectric tester is a specialized piece of equipment designed specifically for measuring ferroelectric properties, such as polarization-electric field hysteresis loops. It typically consists of a high-voltage power supply, a precision voltage source, and a data acquisition system. The film is placed between two electrodes and an electric field is applied while the polarization is measured.

An impedance analyzer can also be used to measure the polarization-electric field hysteresis loop. This instrument measures the impedance of the film at different frequencies, allowing for the calculation of the polarization as a function of the applied electric field.

A lock-in amplifier is another option for measuring the hysteresis loop. It is typically used in conjunction with a function generator and an oscilloscope. The function generator applies a sinusoidal electric field to the film and the lock-in amplifier measures the resulting polarization. This method is useful for studying the dynamic response of the film.

Ultimately, the specific equipment and circuit used will depend on the properties and characteristics of your particular piezoelectric film. It may be helpful to consult with other researchers in your field or reach out to equipment manufacturers for recommendations. Good luck with your characterization!