Brief Introduction of Multilayer Piezo Speaker:
The bi-cylinder double-unit speaker is composed of a moving coil speaker unit and a multi-layer piezoelectric ceramic high-frequency compensation unit, which not only maintains the excellent low-frequency response of the moving coil unit, but also compensates for the lack of high-frequency high-frequency of the moving coil unit by the piezoelectric ceramic unit. The high frequency of the earphone is extended to 40KHz, which brings better instant response, higher resolution and reduction degree, and the sound is rich in texture and clear in layers. It can be said that the porcelain double unit speaker is an innovative revolution in the field of high fidelity full range headphones. .
Compared with the traditional moving iron unit and the ring iron unit, the circular porcelain double unit speaker has simple structure, light weight, low power consumption and low cost. The moving coil and the piezoelectric unit are used in parallel, and there is no need for frequency division processing, which is perfectly adapted to high quality lossless music play.
Features of Piezo Speaker
1. Compact size, Simple construction
2. Light weight, low power consumption and low cost
3. High reliability
4.High fidelity full frequency
Scope of applications of piezoelectric transducer
Dimension
Specification of this transducer
Model | Dimensions | Resonant frequency | Impedance | Electrical capacitance |
D1×t [mm] | Fr [kHz] | [Ω] | CT[nF] |
KLJ12N13.0-C1 | Φ12×0.33 | 13.0±2.0 | ≤100 | 210±25% |
* Customize on request.
Frequency response curve:
The picture above shows the frequency response curve of a certain brand of high-quality headphones. It starts to fall rapidly at about 9KHz, and the general headphones will have a rapid decline at 8KHz.
The picture above shows the frequency response curve after compensation using laminated piezoelectric ceramics(multilayer piezo speaker).
Materials Performance:
Key Technical Index | Unit | Value |
Relative dielectric constant εr3T | - | 3500±20% |
Electromechanical coupling factor Kp | - | 70% |
Longitudinal piezoelectric strain coefficient d33 | 10-12C/N | ≥650 |
Piezoelectric voltage constant g33 | 10-3Vm/N | 17 |
Elastic flexible coefficient S11E | 10-12m2/N | 14.3 |
Elastic flexible coefficient S33E | 10-12m2/N | 18.5 |
Dielectric loss tgδ | 10-3 | ≤1.5 |
M quality factor Qm | - | 45 |
Curie temperature TC | ℃ | 240 |
Density ρ | g/cm3 | 7.9 |
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Brief Introduction of Multilayer Piezo Speaker:
The bi-cylinder double-unit speaker is composed of a moving coil speaker unit and a multi-layer piezoelectric ceramic high-frequency compensation unit, which not only maintains the excellent low-frequency response of the moving coil unit, but also compensates for the lack of high-frequency high-frequency of the moving coil unit by the piezoelectric ceramic unit. The high frequency of the earphone is extended to 40KHz, which brings better instant response, higher resolution and reduction degree, and the sound is rich in texture and clear in layers. It can be said that the porcelain double unit speaker is an innovative revolution in the field of high fidelity full range headphones. .
Compared with the traditional moving iron unit and the ring iron unit, the circular porcelain double unit speaker has simple structure, light weight, low power consumption and low cost. The moving coil and the piezoelectric unit are used in parallel, and there is no need for frequency division processing, which is perfectly adapted to high quality lossless music play.
Features of Piezo Speaker
1. Compact size, Simple construction
2. Light weight, low power consumption and low cost
3. High reliability
4.High fidelity full frequency
Scope of applications of piezoelectric transducer
Dimension
Specification of this transducer
Model | Dimensions | Resonant frequency | Impedance | Electrical capacitance |
D1×t [mm] | Fr [kHz] | [Ω] | CT[nF] |
KLJ12N13.0-C1 | Φ12×0.33 | 13.0±2.0 | ≤100 | 210±25% |
* Customize on request.
Frequency response curve:
The picture above shows the frequency response curve of a certain brand of high-quality headphones. It starts to fall rapidly at about 9KHz, and the general headphones will have a rapid decline at 8KHz.
The picture above shows the frequency response curve after compensation using laminated piezoelectric ceramics(multilayer piezo speaker).
Materials Performance:
Key Technical Index | Unit | Value |
Relative dielectric constant εr3T | - | 3500±20% |
Electromechanical coupling factor Kp | - | 70% |
Longitudinal piezoelectric strain coefficient d33 | 10-12C/N | ≥650 |
Piezoelectric voltage constant g33 | 10-3Vm/N | 17 |
Elastic flexible coefficient S11E | 10-12m2/N | 14.3 |
Elastic flexible coefficient S33E | 10-12m2/N | 18.5 |
Dielectric loss tgδ | 10-3 | ≤1.5 |
M quality factor Qm | - | 45 |
Curie temperature TC | ℃ | 240 |
Density ρ | g/cm3 | 7.9 |
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