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 |
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Properties |
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PSnN-5 |
Dielectric Constant |
ɛTr3 |
|
1600 |
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Coupling factor |
KP |
|
0.6 |
|
K31 |
|
0.35 |
|
K33 |
|
0.68 |
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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 |
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N3 |
|
1825 |
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Nt |
|
2100 |
Elastic compliance coefficient |
Se11 |
10-12m2/n |
16.6 |
Machanical quality factor |
Qm |
|
85 |
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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 |
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|
0.36
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Yuhai company provides
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Piezoceramic materials (PZT) , more than 30 formulations of piezo materials
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Piezoceramic components
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Customized piezo ceramic components and ultrasonic transducers/transducers
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Various different shapes in many different geometries such as disks, plates, tubes, customized shapes
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High resonant frequencies to 10 MHz
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Piezo composite machining
Core Competences of Yuhai piezo ceramic elements
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More than 50 years professional piezoelectric ceramic manufacturing experience.
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more than 30 formulations of piezoelectric materials, stable and superior performance, to meet various piezo applications.
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Forming process with dry pressing, rolling film and isostatic pressing.
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High precision machining equipment for other special shaped components such as inner, outer circle and hemisphere.
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be the manufacturer of supplying the most complete components varieties in China.
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Certified in accordance with ISO 9001.
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product consistency reached 99.9%
OEM Adaptations
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Piezo transducers for ultrasonic applications
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Assembly of complete transducer components