Low Cost Piezoelectric Ceramic Cylinder for Underwater Acoustic
Product Description
Low Cost Piezoelectric Ceramic Cylinder 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.
piezoelectric tubes transducer |
underwater piezometer tube |
piezo ceramic tube |
Piezo Ceramics Tube Description:
Material : PZT5A
Dimensions: OD 38mm, ID32mm, height 25mm
Standard Size of Piezo Tube:
Diameter: 5.0 - 100mm
Wall thickness: 1 - 10mm
Height: 2.5 - 50mm
Typical value of "Soft" PZT materials performance：
"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 Acoustic Application:
It is well established that sound waves, compared to electromagnetic waves, propagate long distances in the ocean. Hence, in the ocean as opposed to air or a vacuum, one uses sound navigation and ranging (SONAR) instead of radar, acoustic communication instead of radio, and acoustic imaging and tomography instead of microwave or optical imaging or X-ray tomography. Underwater acoustics is the science of sound in water (most commonly in the ocean) and encompasses not only the study of sound propagation, but also the masking of sound signals by interfering phenomenon and signal processing for extracting these signals from interference. This chapter we will present the basics physics of ocean acoustics and then discuss applications.
Acoustic Sensor Applications Image: