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| Brand | ZKWN |
|---|---|
| Origin | Beijing, China |
| Model | GEST-20042 |
| Compliance Standards | GB/T 20042.7–2014, GB/T 20042.6–2011 |
| Measurement Modes | Through-plane (2-probe) and In-plane (4-probe) resistivity |
| Electrode Configuration | 50 mm gold-plated electrodes |
| Control Interface | 10-inch industrial touchscreen HMI |
| Test Automation | Fully automated pressure application, data acquisition, and post-test reset |
| Data Output | Real-time display and export of pressure, compressive strain, voltage, current, resistance, resistivity (mΩ·cm, Ω·cm, μΩ·m), conductivity (S/m, % IACS), and derived metrics (e.g., ΔR%, gradient-wise differential analysis) |
| Brand | ZKWN |
|---|---|
| Model | ZKGEST-125 |
| Measurement Principle | Four-Terminal DC Voltage-Current Method (Constant Current Source + High-Impedance Voltmeter) |
| Resistivity Range | 10⁻⁴ – 10⁵ Ω·cm |
| Resolution | 10⁻⁶ Ω·cm |
| Resistance Range (two-terminal mode) | 10⁻⁴ – 2×10⁵ Ω |
| Resistance Resolution | 1 µΩ |
| Voltage Ranges | 2 mV / 20 mV / 200 mV / 2 V |
| Voltage Accuracy | ±(0.5% rdg + 8 digits) at 2 mA range |
| Constant Current Outputs | 10 µA, 100 µA, 1 mA, 10 mA, 100 mA |
| Current Accuracy | ±(0.5% rdg + 2 digits) |
| Electrode Contact Width | 5 mm |
| Electrode Contact Force | 0.6 N |
| Sample Dimensions | (10 ± 0.2) mm width × (70–150) mm length × (3–4) mm thickness (thickness variation ≤ 5% of mean) |
| Power Supply | 220 V ±10%, 50/60 Hz, <50 W |
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