Voice converter is one of the most common applications. Piezoelectric ceramics can be used as ultrasonic sound transducers such as pickups, microphones, headphones, buzzers, ultrasonic sounders, sonar, and ultrasonic flaw detectors of materials. For example, a buzzer on a children ’s toy is a curre

Overview of piezoelectric ceramic transducersPiezoelectric ceramic transducer is composed of piezoelectric ceramic crystal and light and heavy two metals. After polarization treatment at a certain temperature, it has piezoelectric effect. Piezoelectric ceramic ultrasonic transducers have entered the

Barium titanate is the basic raw material of electronicpiezoceramics and the pillar of the electronic ceramics industry. Barium titanate has high dielectric constant and low dielectric loss characteristics as well as excellent ferroelectric, piezoelectric, withstand voltage and insulation properties

Ultrasonic welding transducer is an energy conversion device, and its performance description and evaluation require many parameters.The characteristic parameters of the transducers include resonance frequency, frequency bandwidth, electromechanical coupling coefficient, electroacoustic efficiency,

Parameters of piezoelectric materials and piezoelectric equations (3)(11)Mechanical quality factor QmWhen the PZT material piezo ceramic is used for resonance vibration, it is necessary to overcome the internal mechanical friction loss (internal consumption), and when there is a load, it is necessar

Second, the piezoelectric parameters3. There is a complicated relationship between the piezoelectric parameters of piezoelectric materials, such as e = dE and E = -he as described above. Comparing them seems to give d = -1 / h, but it is not true in practice. Because the former is given under the co