Piezoelectric Coefficient Tester
Compared with the traditional d33 measuring instrument, the DXPC-800 piezoelectric coefficient tester has higher measurement accuracy, wider measurement range, higher reliability and simpler operation. The instrument can directly analyze the piezoelectric temperature spectrum of the sample piezoelectric constant d33 changing with temperature, which can be widely used in the evaluation and testing of piezoelectric materials (piezoelectric ceramics, polymers), ferroelectric materials and related device performance.
Features
- Imported B&K exciter is used to achieve more accurate vibration frequency;
- ADA4870 driving technology is used to perfectly match the B&K exciter, and the closed loop achieves more stable loading force;
- Mainstream FPGA design is used to achieve 30Hz-140Hz wide range measurement;
- High-resistance charge amplifier is used to reduce the loss during the measurement process and achieve accurate measurement;
- DC linear heating is used to reduce eddy current heating noise;
- Vacuum electrode is used to avoid the pyroelectric charge brought by the insulating bracket and introduce it into the measurement system.
Parameters
| Instrument parameter | |
| Test frequency: | Adjustment range 30Hz to 140Hz, accuracy: ±0.1Hz |
| Test load: | Static force 10N, oscillation test load: 0.05N to 0.5N adjustable |
| Capacitance measurement range: | 10 pF to 0.1 μF, accuracy: ±2%±1 pF |
| Temperature range: | RT-650℃ |
| Heating method: | PID control (including LVDC noise reduction power supply) |
| Temperature stability: | ±0.05℃ (>25℃), ±0.1℃ (<25℃) |
| Software function: | Temperature control rate can be set, temperature control program can be set, temperature control curve can be recorded |
| Electrical property parameter | |
| High range: | 10 to 1000 pC/N, Accuracy: ±2% ±1 pC/N, Load: 1.0uF; |
| Ultra-high range: | 100 to 10,000 pC/N, Accuracy ±2% ±1 pC/N; Load: 1.0uF; |
| Low range: | 1 to 100 pC/N, Accuracy: ±2% ±0.1 pC/N, Load: 1.0uF; |
| Ultra-low range: | d33 0 to 10 pC/N, Accuracy: ±2% ±0.01 pC/N, Load: 0.1uF. |
The design of the high-temperature piezoelectric coefficient tester is based on Dexinmag's advantages in weak signal acquisition technology and uses FPGA digital technology to provide a stable test frequency for the exciter, and cooperates with the exciter produced by B&K as the vibration source.
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Material Characterization Study
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Functional Material Measurement
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Piezoelectric Coefficient Tester
Home
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Material Characterization Study
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Functional Material Measurement
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Piezoelectric Coefficient Tester
