Article List
- General application of piezoelectric ceramic materialsThe application of PZT materials piezo ceramic covers many fields of everyday life in today's society, people may be involved in the application of piezoelectric materials almost every day. Piezoelectric ceramics are used for ignition of cigarettes, gas stoves, water heaters, car engines, etc.; eleBasics of Piezoelectric Ceramics September 05, 2018
- characteristics of several PZT piezoelectric ceramic materialsPZT piezoelectric ceramics are polycrystals obtained by sintering lead dioxide, lead zirconate and lead titanate at a high temperature of 1200°C. It has a positive piezoelectric effect and a negative piezoelectric effect. PZT piezoelectric ceramics (lead zirconate titanate): where P is the abbreviatBasics of Piezoelectric Ceramics September 05, 2018
- Ferroelectricity of piezoelectric ceramic crystalsThe polarization of some dielectrics is very special. In a certain temperature range, their dielectric constants are not constant, but vary with field strength, and after removing the external electric field, these dielectrics are not neutral. There is residual polarization. In order to be analogousBasics of Piezoelectric Ceramics September 16, 2018
- Study on Polarization Characteristics of Piezoelectric CeramicsAs a new material that has emerged in recent years, piezoelectric ceramics are widely used in the manufacture of electronic products and laboratory research. The variation of the dielectric constant of piezoelectric ceramics is closely related to its structural characteristics and polarization mode.Basics of Piezoelectric Ceramics September 12, 2018
- theoretical analysis of vibration mode ultrasonic transducersWhen the axial and radial electromechanical factors of the disc-type piezoelectric vibrator are relatively strong, the one-dimensional theory established by the pure radial model or the pure thickness model is not accurate enough. Between the theoretical calculated value and the experimental value.Ultrasonic Transducer information September 30, 2018
- Acoustic impedance of a disc type piezoelectric vibrator transducerPiezoelectric disc type of transducers discuss the advantages and disadvantages of various forms of ultrasonic transducer. Considering the performance, mounting dimensions and field testing of ultrasonic ranging sensors, piezoelectric ceramic discs are selected radial/ thickness of the vibration modUltrasonic Transducer information September 28, 2018
- Impedance characteristics of piezoelectric ultrasonic transducersA physical picture of a piezoelectric disc-type transducer designed and fabricated. In order to reduce the influence of multipath noise, using the aforementioned sound field Fresnel zone, the ultrasonic transducer is slightly higher than the radiating surface (or acoustic window) of the piezoelectriUltrasonic Transducer information September 28, 2018
- piezoelectric effect and dielectric effect of piezoelectric ceramicThe piezoelectric effect is that when some dielectrics are deformed by an external force in a certain direction, polarization occurs inside, and positive and negative opposite charges appear on the two opposite surfaces thereof. When the external force is removed, it will return to the uncharged staBasics of Piezoelectric Ceramics September 15, 2018
- Electrical Characteristics Test and Analysis of Piezoelectric CeramicsThrough the impedance test of the piezoelectric ceramic device, the model parameters and resonant frequency of the piezoelectric oscillator equivalent circuit can be obtained. Through the measurement and analysis of the electrical parameters such as capacitance value, temperature stability, insulatiBasics of Piezoelectric Ceramics September 14, 2018
- Description of several characteristics of piezoelectric ceramics and applications1. Hysteresis characteristics of piezoelectric ceramics: The difference between the step-up and step-down displacement curves of the same piezoelectric ceramic, and the difference in displacement is called hysteresis. 2. Nonlinearity characteristics of piezoelectric ceramics: The input voltage of piBasics of Piezoelectric Ceramics September 14, 2018