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  • Nov
    22
    forming method of piezoelectric ceramic embryo

    There are many methods for forming ceramic embryo , such as pressure forming, plastic forming and slurry forming. Each type of forming method can be divided into several specific forming methods of Pzt ceramic disc. It can be selected according to the shape, specification and size of the product, bu

  • Nov
    21
    manufacturing process of piezoelectric ceramic

    (1) The process method of piezoelectric ceramics is to use a ball mill (drum type, planetary type, agitating type and vibrating type ball mill), and add grinding balls (steel balls, agate balls, zirconium balls, etc.) and media (water, alcohol, etc.) to the raw materials. It is mechanical mixing or

  • Nov
    20
    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

  • Nov
    19
    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

  • Nov
    19
    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

  • Nov
    19
    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

  • Nov
    15
    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

  • Nov
    15
    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

  • Nov
    14
    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

  • Nov
    13
    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

  • Nov
    13
    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

  • Nov
    10
    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

  • Nov
    08
    What’s the piezoelectric ceramic filter?

    A filter is a circuit or device that is selective to the frequency of the signal. To separate a signal at a certain frequency or a signal in a certain frequency band from a signal with a wide frequency range, a filter is required. For example, in multi-channel communication, if two or more people on

  • Nov
    07
    how the sonar works ?

    Sonar is a very important naval equipment, and it has received great attention from all countries with the using of underwater weapons such as submarines. Here, we don't discuss a specific equipment, nor do we involve too many mathematical concepts. Instead, we start with a simple physical principle

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