Laboratory test system DX-DSC-10KV

Overview
The Dielectric Charging and Discharging System DX-DSC-10KV is a Dexinmag test bench for evaluating high-voltage charge/discharge behavior and energy storage performance of dielectric materials. The system combines a dedicated capacitor discharge circuit, compatibility with external high-voltage amplifiers/supplies, oscilloscope-based data acquisition and optional variable-temperature testing.

Features

• High scalability: interface to external high-voltage amplifiers or DC high-voltage supplies.
• High discharge current capability: current measurement via probe up to 100 A (150 A monitoring for multiple currents).
• Sample flexibility: customizable sample holder suitable for thin films, thick films and ceramics.
• Data acquisition: waveform capture with oscilloscope and direct calculation of energy storage density.
• Signal source function: arbitrary waveform generation supported.
• Variable-temperature testing: room temperature up to 250℃ capability; module control range 0–200℃.
• Polarized material testing: compatible with polarization equipment for piezoelectric and dielectric samples.
• Low parasitic capacitance and fast switching: high-voltage single-pole double-throw switch rated up to 10 kV with low parasitics.
• Two discharge modes: under-damped (short-circuited discharge) and over-damped (precision non-inductive resistor load).
• Fatigue testing support: automated cyclic testing available.
• Operating range: typical voltages up to 10 kV and currents in the mA range where applicable.

Test circuit and operation
The system uses a dedicated capacitor discharge circuit. A dielectric sample is charged to the target voltage, then the stored energy is released to a resistive load by closing a high-speed MOS high-voltage switch. The time-dependent voltage/current on the sample during discharge is recorded by an acquisition device (oscilloscope) and used to compute discharge energy density and related metrics. Changing the load resistance alters the discharge speed (RC behavior); multiple resistors or resistor networks can be selected to achieve required discharge rates. For high-kV tests, samples are typically immersed in silicone oil.

Technical specifications

• Equipment model: DX-DSC-10KV
• Current probe bandwidth: 120 MHz
• Peak current: 0–100 A (150 A; multiple currents can be monitored)
• Current acquisition resolution: 1 mA
• High-voltage source module options: 3 kV, 5 kV, 10 kV, 15 kV (current: 0–5 mA)
• Switch rating: rated for 1 million operations, withstand voltage up to 15 kV
• Temperature control range (module): 0–200 ℃
• Temperature stability and accuracy: 0.1 ℃
• Test samples: thin film, thick film, ceramic, glass, etc.
• Notes: discharge energy and timing depend on sample capacitance, load resistance and nonlinear/frequency-dependent dielectric response.

Applications and notes

• Laboratory evaluation of dielectric energy storage and charge-discharge dynamics.
• Compatible with polarization and piezoelectric testing setups.
• Recommended use with appropriate high-voltage safety procedures and oil immersion for high-kV testing.