Buy Piezoelectric Sphere Transducer for Underwater Acoustic
Product Description
Buy Piezoelectric Sphere Transducer for Underwater Acoustic
WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers and some other ultrasonic deivce with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.
Dimension of piezo hemisphere:
Spherical PZT piezo sphere:
10 mm OD
1 mm wall thickness
Capacitance 5000pF
Tg:2%
fr:160Khz
Kp:33%
Some Stanard Size of Spherical and Hemispherical Piezoelectric Ceramic:
Diameter: 5 - 40mm
Wall thickness: 0.5 - 3mm
Caliber: 5 - 8mm
Maximum radius: approx. 50 mm
Spherical spec |
External dimension（mm） |
Technological parameters |
||||||
diameter |
open caliber
|
Wall thickness |
fkHz
|
Kr
|
P-33
|
P-52
|
P-81
|
|
SΦ5 |
SΦ5 |
Φ1.5 |
0.5 |
320 |
0.4 |
1.8 |
3.5 |
|
SΦ10 |
SΦ10 |
Φ3 |
0.8 |
160 |
0.4 |
4.7 |
8.8 |
|
SΦ15 |
SΦ15 |
Φ4 |
1 |
113 |
0.4 |
9.2 |
17.3 |
|
SΦ20 |
SΦ20 |
Φ5 |
1~1.5 |
77 |
0.4 |
17 |
32.0 |
|
SΦ25 |
SΦ25 |
Φ5 |
1~1.5 |
61 |
0.4 |
17.4 |
32.8 |
|
SΦ30 |
SΦ30 |
Φ6 |
1.5~3 |
50 |
0.4 |
23.5 |
44.3 |
|
SΦ40 |
SΦ40 |
Φ7 |
2~4 |
38 |
0.4 |
34.3 |
64.6 |
|
SΦ50 |
SΦ50 |
Φ8 |
2~4 |
30 |
0.4 |
54.8 |
103.2 |
|
SR12.5 |
SR12.5 |
Φ3.5 |
2~5 |
83 |
6.2 |
3.7 |
||
SR25 |
SR25 |
Φ8 |
2~5 |
26.2 |
15.6 |
|||
SR37.5 |
SR37.5 |
Φ10 |
2~5 |
17.7 |
||||
SR50 |
SR50 |
Φ12 |
3~6 |
25.5 |
||||
Soft" PZT materials :
"Soft" PZT materials |
The type of soft material |
||||||||
Properties |
PSnN-5 |
PLiS-51 |
PZT-51 |
PZT-52 |
PZT-53 |
PZT-5H |
PZT-5X |
||
Dielectric Constant |
ɛTr3 |
1600 |
2000 |
2200 |
2400 |
2600 |
3200 |
4500 |
|
Coupling factor |
KP |
0.6 |
0.62 |
0.62 |
0.63 |
0.64 |
0.68 |
0.7 |
|
K31 |
0.35 |
0.35 |
0.35 |
0.35 |
0.36 |
0.38 |
0.4 |
||
K33 |
0.68 |
0.7 |
0.68 |
0.7 |
0.7 |
0.76 |
0.77 |
||
Kt |
0.5 |
0.52 |
0.5 |
0.5 |
0.5 |
0.52 |
0.53 |
||
Piezoelectric coefficient |
d31 |
10-12m/v |
-170 |
-197 |
-186 |
-204 |
-227 |
-275 |
-300 |
d33 |
10-12m/v |
400 |
450 |
500 |
520 |
550 |
620 |
750 |
|
g31 |
10-3vm/n |
-12 |
-11.1 |
-9.6 |
-9.8 |
-9.9 |
-9.7 |
-7.5 |
|
g33 |
10-3vm/n |
28 |
25.4 |
25.6 |
24.5 |
23.9 |
22 |
18.8 |
|
Frequency coefficients |
Np |
2000 |
1920 |
1980 |
1980 |
1960 |
1900 |
1960 |
|
N1 |
1466 |
1407 |
1451 |
1451 |
1437 |
1393 |
1437 |
||
N3 |
1825 |
1925 |
1900 |
1900 |
1755 |
1550 |
1800 |
||
Nt |
2100 |
2100 |
2150 |
2150 |
2150 |
2100 |
2200 |
||
Elastic compliance coefficient |
Se11 |
10-12m2/n |
16.6 |
18 |
16.7 |
17 |
17.4 |
18 |
19 |
Machanical quality factor |
Qm |
85 |
80 |
80 |
75 |
75 |
70 |
65 |
|
Dielectric loss factor |
Tg δ |
% |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Density |
ρ |
g/cm3 |
7.5 |
7.5 |
7.6 |
7.6 |
7.6 |
7.5 |
7.5 |
Curie Temperature |
Tc |
°C |
350 |
345 |
270 |
270 |
270 |
230 |
165 |
Young's modulus |
YE11 |
<109N/m2 |
60 |
56 |
60 |
59 |
57.5 |
56 |
53 |
Poison Ratio |
0.36 |
0.36 |
0.36 |
0.36 |
0.36 |
0.36 |
0.39 |
||
Underwater Acoustics Application:
Underwater acoustics is a key underpinning technology for offshore oil and gas activities. It is increasingly used in oceanographic and environmental studies, and also plays a crucial role in defence. The applications of underwater sound span positioning, communications, navigation, echo-sounding, geophysical surveying, water quality measurement, sonar, weapons systems and tomographic measurements of ocean currents and temperature.