[Data] Piezo Sensor ● Head Amplifier Circuit Example ●

Here is an example of a head amplifier circuit suitable for piezo sensors (PVDF sensors)!

A piezo sensor is a film-type sensor developed using piezo film (polymer piezoelectric film) that generates electric charge when mechanically or thermally stimulated. Since it is a film, it is very thin and flexible! It can be processed into any shape. But what kind of head amplifier circuit should be used? Dr. Piezo will answer such questions. [Document Contents] - Example of a piezo sensor head amplifier circuit Please check the document for more detailed information.

basic information

Piezo film is a polymer piezoelectric and pyroelectric film developed using KF polymer, a polyvinylidene fluoride resin created by Kureha Corporation. Its features are: 1. Being a polymer film, it is thin, light, and flexible. ⇒ Available in four thicknesses: 28μm, 40μm, 80μm, and 110μm. 2. Compared to inorganic piezoelectric materials, it has a low relative permittivity (ε’=13), demonstrating a high piezoelectric g constant (g31=0.22 Vm/N). ⇒ Suitable for sensor applications. 3. The acoustic impedance is close to that of water. ⇒ Suitable for hydrophones, ultrasonic probes, etc. 4. It does not exhibit strong resonance, meaning it has a small Q value, resulting in a wide response frequency range. ⇒ Suitable for applications where signal waveform is important, such as acoustic sensors. For more detailed information, please download the related materials or contact us.