Article List

• Piezoelectric principle of piezoelectric ceramics and formulation of PZT materials

  (1) Positive piezoelectric effectIf a pressure F is parallel to the direction of polarization which is applied to the ceramic sheet, the ceramic sheet is compressed, the polarization is reduced, and the free charge of piezoelectric ceramics originally absorbed is released, and a discharge phenomenon

  Basics of Piezoelectric Ceramics November 20, 2018
• principle of piezoelectric ceramics and formation of domains

  The piezoelectric phenomenon and the piezoelectric effect are that the electronic transducer piezo ceramics column exerts a pressure perpendicular to the electrode surface, which causes deformation and also generates a high voltage discharge. An audible alternating voltage signal is applied to the p

  Basics of Piezoelectric Ceramics November 19, 2018
• Several major piezoelectric ceramic materials

  Barium titanate piezoelectric ceramics (3BaTiO. Barium titanate is the first piezoelectric ceramic made and widely used, and its electromechanical coupling coefficient is very high. Compared with other piezoelectric ceramics, it has a lower curie point and its electromechanical.The performance is ve

  Basics of Piezoelectric Ceramics November 19, 2018
• Main performance parameters of piezoelectric materials

  (1) Dielectric constant εThe dielectric constant is a reflection of the dielectric properties of a material, or the nature of polarization, and is usually expressed . Piezoelectric ceramic components for different purposes have different dielectric constant requirements for piezoelectric ceramics. F

  Basics of Piezoelectric Ceramics November 15, 2018
• What kind of instrument can measure instantaneous voltage of piezoelectric ceramic component generated by the piezoelectric igniter?

  At first, we tried to measure the DC high-voltage gear of the ordinary pointer type multi-meter. It was found that the voltage of the two electrodes of piezoelectric ceramics can only slightly shake the pointer when the black plastic pressure bar of the ignition element is pressed. The reason for th

  Basics of Piezoelectric Ceramics November 15, 2018
• Composition of piezoelectric ceramic material

  Different application ranges have different performance requirements for piezoelectric ceramic materials. 1 Perovskite piezoelectric ceramic material, the chemical formula is ABO3, A is a positive ion with a large radius, which can be +1, +2, +3; B is a positive ion with a small radius, which can be

  Basics of Piezoelectric Ceramics November 14, 2018
• What’s the polarization process of piezoelectric ceramics

  What’s the polarization process of piezoelectric ceramicsThe polarization process of piezo ceramics refers to adding a strong DC electric field to the piezoelectric ceramic to align the domains in the ceramic in the direction of the electric field. Only the ceramics processed by the

  Basics of Piezoelectric Ceramics November 13, 2018
• performance index of piezoelectric ceramics

  Piezoelectric constant d33 of piezoelectric ceramics is a linear response coefficient that reflects the mutual coupling between the mechanical quantity (stress or strain) and the electrical quantity (electrical displacement or electric field). When a compressive stress T3 is applied along the polari

  Basics of Piezoelectric Ceramics November 13, 2018
• piezoelectric ceramic material and piezoelectric effect

  Piezoelectric ceramics is a new type functional ceramic material. It is a kind of ceramic material that converts mechanical energy into electrical energy. This feature can be used to make high-precision instruments, which plays a vital role in industrial production. An important topic is an importan

  Basics of Piezoelectric Ceramics November 10, 2018
• Development of new materials hydrophones

  The main material of the traditional sonar array hydrophone is piezoelectric ceramics, and the development of new materials can greatly improve the sonar performance. Today's new materials are piezoelectric polymers and optical fibers. Among the piezoelectric polymer materials currently are used for

  Basics of Piezoelectric Ceramics November 06, 2018