Question

What is the utility of piezoelectric crystals?

Answer 1

1. Piezoelectric crystals are materials that generate an electric current when mechanical stress is applied, and conversely, they undergo mechanical deformation when an electric field is applied. This unique property makes them highly useful in various practical applications.
2. These crystals are used in microphones, phonograph pickups, and quartz watches. In microphones, they convert sound vibrations into electrical signals. In quartz watches, they act as precise frequency generators due to their stable oscillation properties. They are also used in ultrasound machines, sonar equipment, and pressure sensors, where mechanical pressure or vibration needs to be converted into electrical signals or vice versa.