Piezo electric Disc- transducer (27mm)

A piezoelectric disc is a type of piezoelectric device that converts mechanical energy into electrical energy or vice versa. It is typically made from piezoelectric materials like quartz, ceramic (e.g., PZT – lead zirconate titanate), or other crystals that exhibit the piezoelectric effect.

Key Features of a Piezoelectric Disc:

1. Piezoelectric Effect:
   • Direct Piezoelectric Effect: When mechanical stress or vibration is applied to the disc, it generates an electrical charge.
   • Inverse Piezoelectric Effect: When an electric voltage is applied, the disc deforms or vibrates.
2. Applications:
   • Sensors: Detecting pressure, force, or vibration (e.g., knock sensors in cars).
   • Actuators: Generating precise movements (e.g., in micro-positioning systems).
   • Energy Harvesting: Converting ambient vibrations into electrical energy.
   • Ultrasonic Devices: Used in medical imaging, cleaning, or distance measurement.
   • Buzzers and Speakers: Generating sound by vibrating at specific frequencies.
3. Advantages:
   • High sensitivity to mechanical stress.
   • Fast response time.
   • Compact and lightweight.
   • Can operate over a wide frequency range.
4. Limitations:
   • Fragile and can break under excessive stress.
   • Limited power output for energy harvesting applications.
   • Sensitive to temperature changes.

How It Works:

• When the disc is mechanically deformed, the internal dipoles in the material align, creating a voltage across the electrodes.
• Conversely, applying a voltage causes the material to expand or contract, producing mechanical motion.

Common Specifications:

• Diameter: 27mm
• Thickness: 1mm