| Natural Frequency ( Hz ) | 10Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 28 V/m/s ± 5% |
| Coil Resistance | 395 Ω ± 5% |
| Moving Mass | 11g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency ( Hz ) | 14Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 28 V/m/s ± 5% |
| Coil Resistance | 395 Ω ± 5% |
| Moving Mass | 11g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Geophone Element | GS 20DX Geophone 10Hz |
|---|---|
| Natural Frequency ( Hz ) | 10 ± 5% |
| Geophone Case | Waterproof Land Case |
| Geophone Direction | Vertical |
| Spike | Steel Spike Length75mm |
| Natural Frequency ( Hz ) | 10Hz ± 2.5% |
|---|---|
| Coil Resistance（Ω） | 395Ω ± 2.5% |
| Open Circuit Damping | 0.316 ± 2.5% |
| Damping With Shunt Resistor | 0.7 ± 2.5% |
| Open Circuit Intrinsic Voltage Sensitivity( V/m/s ) | 27.5 V/m/s ± 2.5% |
| Natural Frequency | 10±5.0% |
|---|---|
| Geophone Case | Waterproof Land Case |
| Spike | 75mm |
| Sensitivity ( V/m/s ) | 28.0 V/m/s ±5% |
| Coil Resistance(Ω) | 395±5.0% |
| Natural Frequency | 10±5.0% |
|---|---|
| Geophone Case | Waterproof Land Case |
| Spike | 75mm |
| Sensitivity ( V/m/s ) | 28.0 V/m/s ±5% |
| Coil Resistance(Ω) | 395±5.0% |
| Natural Frequency ( Hz ) | 8Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 28 V/m/s ± 5% |
| Coil Resistance | 395 Ω ± 5% |
| Moving Mass | 11g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency ( Hz ) | 40Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 42 V/m/s ± 5% |
| Coil Resistance | 575 Ω ± 5% |
| Moving Mass | 8.2g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency ( Hz ) | 100Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 23 V/m/s ± 5% |
| Coil Resistance | 570 Ω ± 5% |
| Moving Mass | 5g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency ( Hz ) | 10Hz ± 2.5% |
|---|---|
| Open Circuit Damping | 0.68±5% |
| Sensitivity (v/m/s) | 22.8±2.5% |
| Coil Resistance (ohm) | 350±3.5% |
| Harmonic Distortion ( % ) | ＜0.075 |
