| Piezoelectric Ceramic Elements |
 |
Pro-Wave's new piezoelectric ceramic elements are designed for sensor and actuator uses. A series of standard elements covering a wide range of geometric shapes and sizes are provided. The in-house R&D expertise and machining facilities enable quick delivery of custom designed devices and elements. Piezoelectric films of polyvinylidene difluoride (PVDF 2 ) and PZT thick films are also available for special applications. In addition to ceramic elements, piezoelectric
ceramic powders ready for press and forming are also available. Typical piezoelectric values are listed below for design purpose.
Standard tolerances are 20%. These ceramics feature wide firing range and are optimized for ease in poling and low ageing characteristics |
| Specification |
| Property |
Unit |
S 5A |
S5B |
S4 |
S8 |
| Coupling Coefficient, (Kp(%)) |
% |
66 |
65 |
59 |
58 |
| Frequency Constant |
Hz × m |
2000 |
1950 |
2100 |
2200 |
| Relative Dielectric Constant |
ε / ε 0 |
2000 |
2500 |
1100 |
1400 |
| Dissipation Factor |
% |
1.8 |
2.0 |
1.0 |
0.5 |
| Piezoelectric Coefficient, (d31) |
10 -12 m / V |
-195 |
-190 |
-120 |
-120 |
| Piezoelectric Coefficient, (d33) |
10 -12 m / V |
360 |
360 |
240 |
220 |
| Piezoelectric Coefficient, (g31) |
10 -12 V-m / N |
-12 |
-10 |
-10 |
-9 |
| Piezoelectric Coefficient, (g33) |
10 -12 V-m / N |
22 |
18 |
24 |
16 |
| Mechanical Q |
|
60 |
70 |
500 |
1000 |
| Curie Temperature |
°C |
310 |
290 |
280 |
280 |
| Density |
g / cc |
7.8 |
7.6 |
7.8 |
7.8 |
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Copyright (c) 2003 Pro-Wave Electronic Corp. All rights reserved.