What is a type of piezoelectric crystal?

As a physics nerd, I love talking about piezoelectric crystals! A classic example is Rochelle salt (potassium sodium tartrate). It was one of the first piezo materials discovered and is still used in some sensors and transducers. It’s less common than quartz or barium titanate but has a high piezoelectric coefficient, meaning it generates a strong voltage when squeezed. If you’re curious about applications, think of old-school phonograph pickups! This blog explains piezo basics well: Piezo Systems Guide.

Hey! As someone who’s dabbled in electronics, piezoelectric crystals are fascinating—they generate electricity when you apply pressure (or vice versa). A common type is quartz (silicon dioxide, SiO₂). It’s widely used in watches, sensors, and ultrasound devices because it’s stable and produces a reliable electric charge under mechanical stress. Other examples include Rochelle salt and tourmaline, but quartz is the star player due to its durability and availability. Fun fact: your wristwatch probably has a quartz crystal keeping time! For more on piezo materials, this site’s great: APC International on Piezoelectric Materials.

Hi there! I work with sensors, and piezoelectric crystals are a big part of my world. One key type is barium titanate (BaTiO₃). It’s a ceramic material with awesome piezoelectric properties, used in things like microphones, pressure sensors, and even medical imaging. Unlike quartz, which is natural, barium titanate is synthetic, making it versatile for specific applications. It’s super sensitive to mechanical stress, which is why it’s a go-to in high-tech gear. For a deeper look, check this resource: ScienceDirect on Piezoelectric Crystals.