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Model No.: OD19.5*4MHz R 19 PZT-82
Piezoelectric ceramic hemisphere
Electrode direction: thickness direction
Applications: High Intensity Focused Ultrasound, high power Ultrasonic Transducer
Material: PZT-82( hard PZT P-8)
Technical data:
Dimensions: diameter 19.5mm, thickness according to frequency 4MHz, R 19
Thickness Frequency Ft: 4MHz ± 100KHz
Radial Frequency Fr: 112KHz ± 5%
Electromechanical coupling coefficient Kp: ≥ 0.57
Resonant impedance Zm: ≤ 3 Ω
Dielectric Loss tg δ: 0.3%
Static capacitance Cs: 7200pF± 20%
Test Condition: 25±3 °C 40~70% R.H.
fr, Zm, Kr => Radial mode vibration
Cs tanδ => LCR meter at 1KHz 1Vrms
PZT-82 is equal to PZT-8, hard PZT for higher mechanical quality factor, lower dielectric loss required and much higher power handling capability etc. transducers.
YUHAI piezo material for HIFU systerm:
Typical value of Piezoelectric Ceramic materials performance "Hard" PZT materials Properties PZT-41 PZT-42 PZT-43 PZT-82 Dielectric Constant ɛTr3 1050 1250 1420 1100 Coupling factor KP 0.58 0.58 0.58 0.52 K31 0.32 0.33 0.34 0.3 K33 0.66 0.67 0.68 0.57 Kt 0.48 0.48 0.48 0.4 Piezoelectric coefficient d31 10-12m/v -106 -124 -138 -100 d33 10-12m/v 260 280 300 240 g31 10-3vm/n -11.4 -11.2 -11 -10.3 g33 10-3vm/n 28 25.3 24 25 Frequency coefficients Np 2280 2200 2160 2280 N1 1671 1613 1583 1671 N3 1950 1900 1875 1950 Nt 2250 2200 2200 2300 Elastic compliance coefficient Se11 10-12m2/n 11.8 12.7 13.2 11.6 Machanical quality factor Qm 1000 800 600 1200 Dielectric loss factor Tg δ % 0.3 0.4 0.5 0.3 Density ρ g/cm3 7.5 7.5 7.5 7.6 Curie Temperature Tc °C 320 320 320 310 Young's modulus YE11 <109N/m3 85 79 76 86 Poison Ratio 0.3 0.3 0.3 0.3
Product Categories : HIFU Piezoelectric Ceramic Parts
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Mr. Sun Zhaohai
Tel:0086-533-4230012
Fax:
Mobile Phone:+8618753397607
Email:josa@zbyuhai.com
Address:No.57 Chuangye Road, Boshan Economic Development Area, Zibo, Shandong
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.