Ultra-high temperature piezoelectric ceramics are monolithic piezoelectric ceramic products. These ceramics exhibit a high Curie temperature and significant piezoelectric response, making them suitable for vibration monitoring in high-temperature environments such as internal combustion engines and turbines.
Features:
(1) Excellent temperature stability of piezoelectric constants, with stable performance at 482°C (less than 5% attenuation after 10^7 cycles);
(2) High Curie temperature, exceeding 750°C;
(3) Low dielectric constant and dielectric loss, coupled with high sensitivity.
| Parameter | Specifications | |
|---|---|---|
| Bi-based | BSc-PT | |
| Insulation Resistance (GΩ) | '-55~482 | '-55~260 |
| Piezoelectric constant (pC/N) | 150±40 | 1800±20% |
| Operating temperature (℃) | ≤0.80% | ≤5.0% |
| Curie temperature(℃) | ≥5 | '- |
| Dielectric loss(1kHz) | ≥750 | ≥400 |
| Permittivityn(1kHz) | ≥18 | 400±50 |
| Note: The size can be customized according to customer needs. The Bi Based system was developed for benchmark testing with the American PZ46, and its parameters are comparable to PZ46. | ||
