Pyroelectric coefficient tester DXPCT series

piezoelectric ceramicindustriallaboratory

Product overview
The DXPCT series analyzes pyroelectric coefficient behavior of samples as a function of temperature and time and generates pyroelectric spectra via integrated software. Samples of various shapes (discs, cubes, strips, cylinders) are supported. The system is intended for evaluation and testing of ferroelectric and piezoelectric materials and related devices.

DXPCT-A pyroelectric coefficient tester
The DXPCT-A integrates heating, measurement fixture, display and control software in a single unit to improve measurement stability and simplify maintenance. It measures Curie temperature and pyroelectric coefficient of piezoelectric ceramics over a wide temperature range up to high temperature operation.

Product features

• RAM-embedded development platform enabling online upgrades and remote diagnostics
• 10.1” capacitive touchscreen for direct instrument control
• Integrated heating device, measuring fixture, display and software
• Improved measurement stability and simplified maintenance
• Capable of Curie temperature and pyroelectric coefficient testing for piezoelectric ceramics
• Operates from room temperature up to high temperatures (see technical parameters)

DXPCT-A technical parameters

• Measurement temperature: room temperature to 800℃
• Electrode area: 100 mm²
• Temperature control accuracy: ±0.5℃
• Measurement accuracy: ±0.5℃
• Heating rise rate: 1–5℃/min
• Heating fall rate: 1–5℃/min
• Integrating capacitor: 10 μF (A model)
• Voltage acquisition sensitivity: 0.1 mV
• Voltage range: 200 V
• Voltage acquisition input impedance: 1 × 10¹² Ω
• Recorder error: <1%
• Dimensions: (550 × 480 × 500) mm
• Equipment weight: approx. 26 kg
• Control system: built-in industrial PC

DXPCT-B pyroelectric coefficient tester
The DXPCT-B uses a current-integration approach with an electrometer-grade single-channel amplifier (femtoampere-level input bias) to measure pyroelectric current accumulated on an integrating capacitor. A high-impedance voltage acquisition module and a precision temperature sensor provide signals processed by an industrial computer. Compatible with picoammeter instruments (e.g. Dexinmag, Keithley 6514/6485/6517B) for current measurement.

DXPCT-B technical parameters

• Measuring temperature: room temperature to 800℃
• Electrode area: 100 mm²
• Temperature control accuracy: ±0.5℃
• Measuring accuracy: ±0.5℃
• Heating rate: 1–5℃/min
• Current range: 100 fF ~ 20 mA
• Measuring error: <1%
• Dimensions: (550 × 480 × 500) mm
• Equipment weight: approx. 26 kg
• Control system: built-in industrial computer

Testing software
LabVIEW-based software provides stable data acquisition, recovery after power interruption and image/data saving. Software supports XP, Windows 7 and Windows 10 and is designed for reliable test workflows for pyroelectric materials.

User-friendly interface

• Multilingual interface (Chinese and English)
• Real-time status monitoring of test processes
• Legend/status icons for system state management
• User permission management for role-based access
• Fault alarm functions for equipment diagnostics

Product summary
The DXPCT series measures pyroelectric charge/current accumulated on an integrating capacitor using charge-integration (A model) or current-integration (B model) methods. Signals from a high-impedance voltage acquisition module and a temperature sensor are processed by an industrial computer to determine pyroelectric coefficient and related properties according to temperature changes.

Technical specifications

• Measurement temperature range: room temperature to 800℃
• Electrode area: 100 mm²
• Temperature control accuracy: ±0.5℃
• Measurement accuracy: ±0.5℃
• Heating rise/fall rate: 1–5℃/min
• Integrating capacitor: 10 μF (A model)
• Voltage acquisition sensitivity: 0.1 mV
• Voltage range: 200 V
• Voltage acquisition input impedance: 1 × 10¹² Ω
• Current range (B model): 100 fF ~ 20 mA
• Recorder/measuring error: <1%
• Dimensions: 550 × 480 × 500 mm
• Equipment weight: approx. 26 kg
• Control system: built-in industrial / industrial PC