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    Zibo Yuhai Electronic Ceramic Co., Ltd.
    (Originally, Zibo Wireless Ceramic Factory)
    Address :  No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China 
    Tel : +86-0533-4230012      
    Fax : +86-0533-4231700
    Email : ceo@zbyuhai.com
                

    Product details
    Piezoelectric Hemisphere for Hydrophone Φ25.4×2.12mm
    • Product name: Piezoelectric Hemisphere for Hydrophone Φ25.4×2.12mm
    • Product number: PZT-4 Φ25.4×2.12mm hemisphere
    • Date: 2016-12-29
    • Views : 87

    Piezoelectric ceramic hemisphere  

    Electrode direction: Radial direction

     

    Applications:  Hydrophone, underwater acoustics transducer, acoustic pickups

     

     

    Material:  PSnN-5( Soft PZT, low dielectric constant 1600, high Curie T. 350℃)

     

    Technical data:

    Dimensions:  diameter 25.4mm, wall thickness 1.4mm, hole 3.3mm

    Radial Frequency Fr: 77KHz ± 3KHz

    Frequecy Bandwidth ΔF > 8500

    Resonant impedance Zm < 20 Ω 

    Dielectric Loss tg δ: 2%

    Static capacitance Cs: 9000pF± 20%

     


    Test Condition: 25±3 °C 40~70% R.H.
    fr, Zm, Kr => Radial mode vibration
    Cs tanδ => LCR meter at 1KHz 1Vrms

     

    Piezo material PSnN-5 is "SOFT" PZT,  widely used in the piezo elements for ultrasonic flowmeter, liquid level measurement and distance measurement with high sensitive and high curie temperature. 

     

     

    "Soft" PZT materials      
    Properties     PSnN-5
    Dielectric Constant ɛTr3   1600
           
    Coupling factor  KP   0.6
      K31   0.35
      K33   0.68
      Kt   0.5
    Piezoelectric coefficient d31 10-12m/v -170
      d33 10-12m/v 400
      g31 10-3vm/n -12
      g33 10-3vm/n 28
    Frequency coefficients Np   2000
      N1   1466
      N3   1825
      Nt   2100
    Elastic compliance coefficient Se11 10-12m2/n 16.6
    Machanical quality factor Qm   85
           
    Dielectric loss factor Tg δ % 2
    Density ρ g/cm3 7.5
    Curie Temperature Tc °C 350
    Young's modulus YE11 <109N/m3 60
    Poison Ratio     0.36
     
     
     
     
     

    Yuhai company provides

    • Piezoceramic materials (PZT) , more than 30 formulations of piezo materials
    • Piezoceramic components
    • Customized piezo ceramic components and ultrasonic transducers/transducers
    • Various different shapes in many different geometries such as disks, plates, tubes, customized shapes
    • High resonant frequencies to 10 MHz
    • Piezo composite machining

     

     

    Core Competences of Yuhai piezo ceramic elements

    • More than 50 years professional piezoelectric ceramic manufacturing experience.
    • more than 30 formulations of piezoelectric materials, stable and superior performance, to meet various piezo applications.
    • Forming process with dry pressing, rolling film and isostatic pressing.
    • High precision machining equipment for other special shaped components such as inner, outer circle and hemisphere.
    • be the manufacturer of supplying the most complete components varieties in China.
    • Certified in accordance with ISO 9001.
    • product consistency reached 99.9%

     

    OEM Adaptations

    • Piezo transducers for ultrasonic applications
    • Assembly of complete transducer components

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