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| Brand | Jiubin Instruments |
|---|---|
| Origin | Shanghai, China |
| Model | JB-A |
| Frequency Range | 10 kHz – 70 MHz |
| Main Capacitance Tuning Range | 30–500 pF |
| Capacitance Resolution | ±0.2 pF |
| Q Factor Range | 1–1000 (auto/manual range switching) |
| Q Measurement Accuracy | <5% |
| Q Resolution | 0.1 (4-digit display) |
| Capacitance Measurement Range | 1–460 pF |
| Loss Tangent (tan δ) Determination Method | Resonant Q-shift comparison using dual-variable capacitor system |
| Dielectric Constant (εᵣ) Calculation | Based on parallel-plate capacitance ratio with/without sample |
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