Piezoelectric hemisphere for hydrophone OD63
Piezoelectric ceramic Hemisphere
Electrode direction: Radial vibration
Yuhai company developed piezo sphere shape of various hemisphere and focal bowl sizes in more than 10 available PZT piezo material formulations according to high sensitive, temperatures etc applications.
- underwater acoustic sensors
- Ultrasonic detection
- Ultrasonic position
- Ultrasonic Photonic
- Sizes from 6mm up to 160mm
- Thickness from 1mm up to 10mm
- Choice of metallisation (Silver, Nickel, Gold and others on request)
- Wide choice of PZT formulations
Piezoelectric Ceramic Material: PZT-41
PZT -41 is equal to PZT-4D hard PZT. It is designed for higher dielectric constant, high Q m , high coercive field, high coupling and high stiffness required high power high driving transducers etc.
|Piezoelectric elements technical data:|
|Dimensions:||Diameter 63mm, thickness 2mm hemisphere|
|Radial frequency Fr:||35KHz ± 2KHz|
|Frequency Bandwidth ΔF||> 4.5KHz|
|Resonant Impedance R:||≤ 5 Ω|
|Dielectric Loss tg δ:||≤ 0.3%|
|Static capacitance Cs:||35000pF ± 12.5%|
Test Condition: 25±3 °C 40~70% R.H.
fr, Zm, Kr => Radial mode vibration
Cs tanδ => LCR meter at 1KHz 1Vrms