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Overview
BM500 series ceramics are lead zirconate titanates with high coupling coefficients and piezoelectric charge coefficient.These materials find application in passive devices and low-power resonators.
Features
- High coupling coefficient
- High piezoelectric charge coefficient
Applications
- Passive devices
- Low power resonators
- Hydrophones, • Depth sounders
- Communication, • Sonobuoys
- Linear arrays
- Level, flow measurement
- Flaw detection (NDE)
- Thickness measurement
- Accelerometers, • Actuators
- Transducers
| Relative Dielectric Constant |
KT33 |
1750 |
— |
| Dissipation Factor |
Tan d |
1.6 |
% |
| Coupling Factor |
kp |
0.62 |
— |
| |
k31 |
0.37 |
— |
| |
k33 |
0.72 |
— |
| Charge Constant |
d31 |
-175 |
10-12 C/N |
| |
d33 |
365 |
10-12 C/N |
| Voltage Constant |
g31 |
-11.5 |
10-3 Vm/N |
| |
g33 |
25 |
10-3 Vm/N |
| Mechanical Quality Factor |
QM |
80 |
— |
| Frequency Constants 2 |
Np |
2050 |
Hz.m |
| |
N1 |
1400 |
Hz.m |
| |
N4 |
1800 |
Hz.m |
| Compliance |
SE11 |
15.5 |
10-12 m2 /N |
| |
SE33 |
19 |
10-12 m2 /N |
| Density |
r |
7.65 |
g/cm3 |
| Curie Temperature |
Tc |
360 |
°C |
| Coupling Factor |
kp |
-0.5 |
— |
| Dielectric Constant |
kT33 |
-1 |
— |
| Frequency Constant |
Np |
0.5
|
Hz.m |
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Notes:
1 Low field parameters;
measured at 1 KHz
2 NP - Planar
N1 - Longtitudinal
N4 - Thickness
3 Reference point of time;
24 hours after polarization
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