Low Frequency Hydrophone Piezoelectric Components
China Low Frequency Hydrophone Piezoelectric Components, Find details about China Piezo Tube Stack, Piezoelectric Ceramic Tube from Low Frequency Hydrophone Piezoelectric Components
Hard PZT Piezoelectric Material Piezo Tube Stack for Hydrophone
WuHan Piezohannas Tech.Co .,Ltd is a manufactuer of piezoelectric ceramics ,ultrasonic transducers and some other components with strong technology force.With a quality management system and research & development sector,our products are extensively used in most applications.
Piezo Ceramics Tube Description:
Dimensions: 61.6*56*10mm
Material : Pzt -51
Mainly used for assembling large ultrasonic transducer array or adhesive in various kind of curved beam to measure the impact and vibration.It also can be used to assemble various kind of vibration pickup and acoustic pick up.Sometimes,the cross section with a certain angle trapezoid used to assemble high-power and lower frequency of mosaic pipe which is used in active sonar equipment.
Designs Shape: Hemisphere, Bowl, Segment, Tube, Block
Cutstomer Design:Other type and shapes (Hemisphere, Bowl, Ball) piezoceramic parts could be OEM as customer's design and application request.
Standard Size of Piezo Tube:
Diameter: 5.0 - 100mm
Wall thickness: 1 - 10mm
Height: 2.5 - 50mm
Typical value of "Hard" PZT materials performance:
Abbreviation | Definition | Unit |
ε33 T , ε 11 T | Free Relative Dielectric Constant | |
ε33 S , ε 11 S | Clamping Relative Dielectric Constant | |
tgδ | Dissipation Factor at Low Field | |
ρ | Density | g/cm 3 |
T c | Curie Point | ºC |
V | Velocity | m/s |
Z a | Accoustic Impedance | Mrayl |
K p, K 33, K t, K 31, K 15 | Electromechanical Coupling Factors | |
N p , N 33, N 31, N 15, N t, N c | Frequency Constants | Hz - m |
d 33, d 31, d 15 | Piezoelectric Strain Constants | 10 -12 C/N |
d h | Hydrostatic Piezoelectric Strain Constants | 10 -3 Vm/N |
Q pm | Mechanical Quality Factor at Planar mode | |
Y 11 E , Y 33 E | Young's Modulus under Short Circuit | 10 10 N/m 2 |
σ | Poisson Ratio | |
ε33 T (% Per Decade) | Aging Rate of Free Relative Dielectric Constant | |
K p (% Per Decade) | Aging Rate of Planar Electromechanical Coupling Factor | |
K t (% Per Decade) | Aging Rate of Coupling Factor at Thickness mode | |
N p (% Per Decade) | Aging Rate of Frequency Constant of Planar Mode | |
N t (% Per Decade) | Aging Rate of Frequency Constant at Thickness Mode | |
ε33 T ( / o C) | Thermal Stability of Free Relative Dielectric Constant | |
GLOSSARY | ||
BT | Barium Titanate | |
Hard PZT | Hard Lead Titanate Zirconate Compound | |
Soft PZT | Soft Lead Titanate Zirconate Compound |
Nominal Sizes and Tolerances:
Geometry | Size (mm) | Tolerance |
Discs | Diameter: 3 to 200 |
Tolerance according to the piezoelectric elements Industrial standard. |
Thickness: 0.2-25 | ||
Tubes | Length: 1-100 | |
OD: 6-180 | ||
ID: 5-150 | ||
Wall: 0.5-15 | ||
Plates | Length: 1-200 | |
Width: 1-200 | ||
Thickness: 0.2-25 | ||
Sphere | OD: 6-160 | |
ID: 4-150 | ||
Wall: 1-10 | ||
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 |
Nominal Electric Tolerances:
Piezoelectric Properties | ± 5% |
Relative Dielectric Constant | ± 15% |
STANDARD MECHANICAL TOLERANCES:
Outside Diameter ±0.150mm
Inside Diameter ±0.150mm
Thickness ±0.05mm
Flatness 0.002**/0.012mm MAX
Parallelism 0.007**/0.012mm MAX
Concentricity 0.2mm
Applications of Piezoelectric Ceramics
ultrasonic flow meters | hydrophones | accelerometers |
piezo transducer vibration | atomizer transducer | matter dispersion |
impact-type gas ignitors | precise movement control | pressure sensors |
accelerometers | impact-type gas ignitors | precise movement control |
microphones | musical pick-ups | diagnostic medical ultrasound |
sound making | level sensors | ultrasonic atomizers |
sonar transducer | ultrasonic micro-bonding apparatus | wall thickness sensor |
underwater echo sounders | high frequency transducers | high stress pressure ensors |
squeeze-type gas | ignitors high power actuators | vibratory motors |
transformers | ultrasonic welding | ultrasonic surgery |
material stress sensor | piezo electricity harvesting | biomedical probe |
piezo electricity harvesting | fish finder transducer | compression sensor |
piezo expansion sensor | beauty transducer | Ultrasonic mixing |
calculators, | telephones | car alarm sensor |
embryo monitor | heart reflectoscope reflector | pedometer |
ultrasonic medical | ultrasonic cleaning | sonochemistry |
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