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PiezoelectricCeramics (PZT) materials are categorized as functional ceramics. In sensors they make it possible toconvert forces, pressures and accelerations into electrical signals, and in sonic and ultrasonic transducers and actuators they convert electric voltages into vibrations or deformations.PiezoelectricCeramics materials are classified according to their chemical composition on the one hand, and by the specific application conditions on the other.
In order to improve the reliability of piezoelectric ceramics, we usually use metal shell packaging to reduce the lateral force that external mechanical structures may bring to piezoelectric ceramics. However, even if piezoelectric actuators that use shell packaging are used, it is necessary to go deeper Understand the technical background of piezoelectric ceramic applications, and ensure high reliability through appropriate design and operation.
Even if the structure of the piezoelectric system has proven to be reliable, any seemingly minor changes need to be re-evaluated. In some practical applications, the reliability of piezoelectric ceramics is often discussed under the following two extreme conditions.
Every link in the operation process must be strictly controlled, through actual testing and evaluation procedures, to avoid overloading, unreasonable mechanical structure, mechanical compensation and correction of inappropriate driving conditions, so as to achieve high reliability.
Piezoelectric ceramics can output performance based on limited parameters in a short time, but we would not recommend this method. When long-term reliability, long-term work and high duty cycles are necessary conditions, the successful short-term test of a piezoelectric system does not mean that it is equally safe and reliable for long-term use. Incorrect operation will not immediately damage the piezoelectric ceramics, but will reduce long-term reliability and fail to achieve the expected working cycle.
The reliability of piezoelectric ceramics is affected by the mechanical structure of the load, drive control, and operating environment and other conditions; in most applications, due to cost reasons, users often want to use piezoelectric ceramics as small as possible. Electroceramic components have become the weakest link in many mechanical design structures. In addition, piezoelectric ceramics are a relatively complex material and very sensitive. Improper handling can easily cause damage.
Application
1. ultrasonic cleaning trasnducer
2. ultrasonic welding tansducer
3. ultrasonic beauty transducer
4. ultrasonic underwater transducer
5. ultrasonic immersible transucer
6. ultrasonic screening transducer
7. ultrasonic cutting transducer
8. ultrasonic atomization transducer
9. ultrasonic emulsifier
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The piezoelectric ceramics are sensitive to external forces so that they can even sense the air disturbance caused by flying insects'flapping wings more than a dozen meters away and convert extremely weak mechanical vibrations into electrical signals. This characteristic of piezoelectric ceramics can be used in sonar system, weather detection, telemetry environmental protection, household appliances and so on.
Piezo Ceramic For Tooth-Cleaning
| Specification | Dimension (mm) | Radial Frequency (fs) | Capacitance (pF) | Electromechanical coupling coefficient (Kr) | Piezoelectric voltage coefficient ( d33) | Dielectric dissipation factor (tanδ) |
| OKS-JYJP-1052 | Φ10×Φ5×2 | 145KHz±5% | 330 ±12.5% | 0.54 | 260 | ≤0.6 |
| OKS-JYJP-1051 | Φ10×Φ5×2 | 150KHz±5% | 310±12.5% | 0.31 | 200 | ≤0.3 |
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| Specification | Dimension (mm) | Radial frequency (KHz) | Capacitance (±12.5%)pF | Dielectric dissipation factor tanδ(%) | Impedance (Ω) | Kr | Mechanical quality factor (Qm) |
| OKS-QXJP3030 | Φ30×3.0 | 66.7 | 2730 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP3530 | Φ35×3.0 | 63.0 | 3100 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP3865 | Φ38×6.5 | 59.9 | 1580 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP4530 | Φ45×3.0 | 50.0 | 5100 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP4535 | Φ45×3.5 | 50.0 | 4700 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP5030 | Φ50×3.0 | 46.0 | 5800 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP5035 | Φ50×3.5 | 46.0 | 6300 | ≤0.3 | ≤15 | ≥0.55 | 500 |
| OKS-QXJP5050 | Φ50×5.0 | 46.0 | 4150 | ≤0.3 | ≤15 | ≥0.55 | 500 |
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Ring Piezoelectric Ceramic (PZT-4 and pzt-8)
| Specification | Dimension (mm) | Radial frequency (KHz) | Capacitance (pf) | Dielectric dissipation factor tanδ(%) | Electromechanical coupling coefficient (Kr) | Impedance Zr(Ω) | Thickness frequency (KHz)) | Mechanical quality factor (Qm) |
| OKS-YHJP-25103 | Φ25×Φ10×3 | 66.4 | 1240±12.5% | ≤0.3 | ≥0.46 | ≤15 | 683±5% | 800 |
| OKS-YHJP-225104 | Φ25×Φ10×4 | 66.4 | 930±12.5% | ≤0.3 | ≥0.46 | ≤15 | 512±5% | 800 |
| OKS-YHJP-35155 | Φ35×Φ15×5 | 45.6 | 1550±12.5% | ≤0.3 | ≥0.46 | ≤15 | 512±5% | 800 |
| OKS-YHJP-381364 | Φ38×Φ13×6.4 | 45.3 | 2300±12.5% | ≤0.3 | ≥0.46 | ≤15 | 512±5% | 800 |
| OKS-YHJP-38155 | Φ38×Φ15×5 | 43.2 | 2200±12.5% | ≤0.3 | ≥0.46 | ≤15 | 512±5% | 800 |
| OKS-YHJP-40155 | Φ40×Φ12×5 | 45.9 | 2070±12.5% | ≤0.3 | ≥0.46 | ≤15 | 410±5% | 800 |
| OKS-YHJP-40155 | Φ40×Φ15×5 | 42.2 | 1960±12.5% | ≤0.3 | ≥0.46 | ≤15 | 323±5% | 500 |
| OKS-YHJP-40176 | Φ40×Φ17×6 | 40.5 | 1555±12.5% | ≤0.3 | ≥0.46 | ≤15 | 341±5% | 800 |
| OKS-YHJP-40205 | Φ40×Φ20×5 | 37.9 | 1700±12.5% | ≤0.3 | ≥0.47 | ≤15 | 410±5% | 800 |
| OKS-YHJP-45155 | Φ45×Φ15×5 | 35.2 | 2200±12.5% | ≤0.3 | ≥0.47 | ≤15 | 385±5% | 600 |
| OKS-YHJP-50205 | Φ50×Φ20×5 | 33.2 | 2490±12.5% | ≤0.3 | ≥0.46 | ≤15 | 341±5% | 500 |
| OKS-YHJP-50206 | Φ50×Φ20×6 | 33.2 | 2490±12.5% | ≤0.3 | ≥0.46 | ≤15 | 341±5% | 500 |
| OKS-YHJP-502065 | Φ50×Φ20×6.5 | 33.2 | 2490±12.5% | ≤0.3 | ≥0.46 | ≤15 | 341±5% | 500 |
| OKS-YHJP-50175 | Φ50×Φ17×5 | 34.3 | 2430±12.5% | ≤0.3 | ≥0.46 | ≤15 | 315±5% | 800 |
| OKS-YHJP-50176 | Φ50×Φ17×6 | 34.3 | 2430±12.5% | ≤0.3 | ≥0.46 | ≤15 | 315±5% | 800 |
| OKS-YHJP-501765 | Φ50×Φ17×6.5 | 34.8 | 2430±12.5% | ≤0.3 | ≥0.46 | ≤15 | 315±5% | 800 |
| OKS-YHJP-50236 | Φ50×Φ23×6 | 31.2 | 2340±12.5% | ≤0.3 | ≥0.47 | ≤15 | 341±5% | 800 |
| OKS-YHJP-50276 | Φ50×Φ27×6 | 29.3 | 2100±12.5% | ≤0.3 | ≥0.47 | ≤15 | 341±5% | 800 |
| OKS-YHJP-603010 | Φ60×Φ30×10 | 25.3 | 1922±12.5% | ≤0.3 | ≥0.47 | ≤15 | 341±5% | 800 |
38X12.75X6.35mm Pzt4 Ring Piezo Ceramic Pietoelectric Disk Pzt Ceramic Material Ultrasonic Piezoelectric Elements
