Functional Dielectrics & Wide-Temperature Spectroscopy
DMS-2000 High/Low Temperature Dielectric Spectrometer Installed at Shanghai Jiao Tong University
Comprehensive wide-temperature characterization platform deployed with precision PID temperature profiling and multi-frequency sweep capabilities.
Client Profile & Institutional Stature
Shanghai Jiao Tong University
Top-50 Global University & International Leader in Materials Science & Engineering
Founded in 1896, Shanghai Jiao Tong University (SJTU) is an elite global research university consistently ranked among the world's top 50 institutions (QS World University Rankings). Its School of Materials Science and Engineering is ranked in the top 0.1% worldwide by Essential Science Indicators (ESI), spearheading major advancements in high-temperature alloys, functional dielectrics, and energy storage systems. SJTU's adoption of the MatMeas DMS-2000 dielectric spectrometer system delivers indispensable testing infrastructure for doctoral research and national strategic engineering projects.
Global Rank
Top 50 Worldwide (QS Rankings)
Founding Year
1896
Discipline Standing
Top 0.1% Globally (ESI Materials Science)
Research Scope
Advanced Dielectrics & Energy Materials
Key Project Takeaways & Delivery Highlights
- ·Delivered wide-temperature dielectric characterization platform spanning cryogenic to elevated temperatures.
- ·Integrated multi-frequency impedance spectroscopy covering dielectric constant and loss tangent.
- ·Rigorous on-site user training and standard operating procedures (SOP) established for postgraduate researchers.
- ·Reliable baseline established for dielectric energy storage and relaxor ferroelectric investigations.
Technical Specifications & Performance Parameters
| Operating Temperature Range | -160°C to 500°C (Liquid Nitrogen Cryogenic to Elevated Heating) |
| Temperature Stability | ±0.1°C with precision PID feedback loop |
| Frequency Sweep Range | 10 μHz to 30 MHz (covers sub-Hertz relaxation to high-frequency dynamics) |
| Measurable Parameters | Dielectric permittivity (ε', ε''), loss tangent (tan δ), impedance (Z*, θ), Cole-Cole plots |
| Thermal Chamber Architecture | Hermetic cryogenic test chamber with anti-frosting purge system |
| Sample Fixture Configuration | Four-terminal guarded parallel-plate fixture with platinum contact leads |
Client Background & Research Mission
Shanghai Jiao Tong University (SJTU) is a globally renowned research university with world-leading programs in materials science, condensed matter physics, and electrical engineering. Developing high-energy-density dielectric capacitors and high-efficiency electrocaloric cooling materials requires understanding dielectric behavior across broad thermal spectra, from sub-ambient cryogenic regimes to elevated operational temperatures.
The Experimental Challenge: Wide-Temperature Thermal Stability & Low Noise
Dielectric measurements over wide temperature spans are vulnerable to thermal lag, moisture condensation at low temperatures, and electrical noise from furnace heating elements. SJTU researchers needed a tightly integrated system that guarantees uniform sample temperatures, robust anti-interference shielding, and seamless frequency-dependent impedance sweeps.
MatMeas On-Site Commissioning & Technical Training
Engineer Gu from MatMeas's after-sales division carried out complete on-site deployment at SJTU's Minhang campus:
- Chamber Thermal Profiling: Temperature control loops were tuned to achieve rapid stabilization and negligible thermal gradients across sample fixtures.
- Signal Integrity Verification: Low-loss shielded leads and guarded electrodes were tested using certified dielectric standards, ensuring stable measurement of loss tangents (tan δ) below 0.001.
- Comprehensive SOP Training: Faculty and students received detailed hands-on instruction covering sample preparation, electrode deposition, automated measurement recipe setup, and dielectric temperature spectrum analysis.
The faculty and researchers expressed high satisfaction with the system's stability, reproducibility, and the engineer's professional support, establishing a durable research platform for ongoing dielectric materials innovation.
Field Inspection & Packaging Gallery
Equipment verification, pre-installation calibration, and export wooden crating photos:
MatMeas engineer Gu conducting on-site training on DMS-2000 dielectric spectrometer at Shanghai Jiao Tong University
Engineer Gu instructing faculty and doctoral researchers on wide-temperature dielectric testing procedures at SJTU.
Related Equipment & Consumables
Explore the instruments, compatible processing stations, and consumables associated with this application:
MatMeas DMS2000 High-Low Temperature Dielectric Spectrometer
The MatMeas DMS2000 is an advanced High and Low Temperature Dielectric Impedance Spectrometer engineered for evaluating the dielectric properties of materials under extreme thermal conditions. Compliant with the ASTM D150 standard, it integrates a proprietary LNP-95 liquid nitrogen injection system to achieve seamless continuous temperature variation from -160°C to 450°C. Uniquely featuring a vacuum-enabled sample chamber to completely prevent thermal frosting and eliminate false water peaks near 0°C, along with versatile options for single-sample or five-sample simultaneous testing, the DMS2000 ensures unparalleled data fidelity and high throughput for advanced scientific research.
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MatMeas DMS1000 High-Temperature Dielectric Spectrometer
The MatMeas DMS1000 is an advanced High-Temperature Dielectric Impedance Temperature Spectrometer engineered for the ultimate electrical characterization of bulk materials. Delivering an exceptional measurement accuracy of 0.05%, it operates efficiently from Room Temperature (RT) to 1000°C. Its upgraded platform supports both single-sample and four-sample simultaneous measurements. Integrated with a sealable metal shielding system and high-purity platinum electrodes, the DMS1000 enables highly reliable testing across inert, oxidizing, reducing, and vacuum atmospheres, making it an indispensable infrastructure for precision materials science.
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