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Piezoelectric Hemisphere for Hydrophone Φ25.4×2.12mm


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Zibo Yuhai Electronic Ceramic Co., Ltd.
Address :  No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China 
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Piezoelectric Hemisphere for Hydrophone Φ25.4×2.12mm

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  Piezoelectric ceramic hemisphere Electrode direction: Radial directionApplications: Hydrophone, underwater acoustics transducer, acoustic pickupsMaterial: PSnN-5( Soft PZT, low dielectric constant 1600, high Curie T. 350℃)Technical data:Dimensions: diameter 25.4mm, wall thickness 1.4mm, hole 3.3mmRadial Frequency Fr: 77KHz ± 3KHzFrequecy Bandwidth ΔF > 8500Resonant 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 1VrmsPiezo 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 providesPiezoceramic 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 elementsMore 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 AdaptationsPiezo transducers for ultrasonic applications

  Assembly of complete transducer components

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ADDRESS: No. 57, Chuangye Road, Development Zone, Zibo, Shandong, China


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