Ultrasonic Medical Piezoceramic Disc Crystal for Diagnostic Equipment
Product Description
Ultrasonic Medical Piezoceramic Disc Crystal for Diagnostic Equipment
WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.
l. Piezo ceramic Description:
Geometry |
Size (mm) |
Tolerance |
Piezo Discs |
Diameter: 3 to 200 |
Tolerance according to the piezoelectric elements Industrial standard. |
Thickness: 0.2-25 |
||
Piezo Tubes |
Length: 1-100 |
|
OD: 6-180 |
||
ID: 5-150 |
||
Wall: 0.5-15 |
||
Piezo Plates |
Length: 1-200 |
|
Width: 1-200 |
||
Thickness: 0.2-25 |
||
Piezo Sphere |
OD: 6-160 |
|
ID: 4-150 |
||
Wall: 1-10 |
||
Piezo Rings |
OD: 3-180 |
|
ID: 1-150 |
||
Thickness : 0.2-25 |
||
For All Sizes |
Flatness |
± 0.03 |
Concentricity |
± 0.10 |
|
Perpendicularity |
± 0.10 |
|
Parallelism |
± 0.05 |
PZT Soft Material:
"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 |
||
PZT Hard Material:
Hard" PZT materials |
PZT-41 |
PZT-42 |
PZT-43/4D |
PZT-82 |
PBaS-4 |
||
Dielectric Constant |
ɛTr3 |
1050 |
1250 |
1420 |
1100 |
1900 |
|
Coupling factor |
KP |
0.58 |
0.58 |
0.58 |
0.52 |
0.59 |
|
K31 |
0.32 |
0.33 |
0.34 |
0.3 |
0.34 |
||
K33 |
0.66 |
0.67 |
0.68 |
0.57 |
0.68 |
||
Kt |
0.48 |
0.48 |
0.48 |
0.4 |
0.49 |
||
Piezoelectric coefficient |
d31 |
10-12m/v |
-106 |
-124 |
-138 |
-100 |
-160 |
d33 |
10-12m/v |
260 |
280 |
300 |
240 |
380 |
|
g31 |
10-3vm/n |
-11.4 |
-11.2 |
-11 |
-10.3 |
-9.5 |
|
g33 |
10-3vm/n |
28 |
25.3 |
24 |
25 |
22.6 |
|
Frequency coefficients |
Np |
2280 |
2200 |
2160 |
2280 |
2200 |
|
N1 |
1671 |
1613 |
1583 |
1671 |
1613 |
||
N3 |
1950 |
1900 |
1875 |
1950 |
1850 |
||
Nt |
2250 |
2200 |
2200 |
2300 |
2200 |
||
Elastic compliance coefficient |
Se11 |
10-12m2/n |
11.8 |
12.7 |
13.2 |
11.6 |
13.2 |
Machanical quality factor |
Qm |
1000 |
800 |
600 |
1200 |
2200 |
|
Dielectric loss factor |
Tg δ |
% |
0.3 |
0.4 |
0.5 |
0.3 |
0.5 |
Density |
ρ |
g/cm3 |
7.5 |
7.5 |
7.5 |
7.6 |
7.5 |
Curie Temperature |
Tc |
°C |
320 |
320 |
320 |
310 |
310 |
Young's modulus |
YE11 |
<109N/m3 |
85 |
79 |
76 |
86 |
76 |
Poison Ratio |
0.3 |
0.3 |
0.3 |
0.3 |
0.33 |
Diagnostic Ultrasound Equipment Application:
Diagnostic ultrasound equipment is equipment that applies ultrasonic waves to an object and maps its internal shape based on the rebounding waves. In the medical field, it is used in examining internal organs, fetuses and other parts of the human body. Initially, ultrasonic waves could only be transmitted in a single direction, allowing only two-dimensional, still images to be produced. it became possible to send ultrasonic waves in the form of a fan, enabling real-time imaging of the movements of internal organs or fetuses. More recently, with progress in image processing technologies, more vivid and clear three-dimensional images can be produced.As diagnostic ultrasound equipment uses sound waves instead of radiation, it poses no threat of radiation exposure to the patients. In addition, requiring no elaborate preparations, it possesses advantages such as easier, less painful testing of patients. On the other hand, since ultrasonic waves do not propagate through bones or air, the equipment is not suitable for observing lungs, stomachs and intestines, which all contain air.