| Natural Frequency | 14Hz±5% |
|---|---|
| Geophone Case | Horizontal Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Natural Frequency | 28Hz±5% |
|---|---|
| Geophone Case | Horizontal Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Natural Frequency | 60Hz±5% |
|---|---|
| Geophone Case | Horizontal Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Natural Frequency | 100Hz±10% |
|---|---|
| Geophone Case | Vertical Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Nature Frequency Hz | 4.5Hz±17% |
|---|---|
| Sensitivity | 90V/m/s±10% |
| Distortion | ≤0.2%(@12Hz&0.7 In/s Peak-peak Coil-to-case Velocity) |
| Opening Circuit Damping | 0.3±20% |
| Damping With 20KΩ Shunt Resistor | 0.596±20% |
| 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 ( Hz ) | 60Hz ± 5% |
|---|---|
| Sensitivity With Shunt Resistor ( V/m/s ) | 48.0 V/m/s ± 5% |
| Coil Resistance | 1450 Ω ± 5% |
| Moving Mass | 7.3g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency ( Hz ) | 60Hz ± 5% |
|---|---|
| Voltage Sensitivity ( V/m/s ) | 35.5 V/m/s ± 5% |
| Coil Resistance | 610 Ω ± 5% |
| Moving Mass | 6.5g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Natural Frequency | 2Hz Seismic Geophone |
|---|---|
| Sensitivity (v/m/s) | 200±10% |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Geophone Case | Vertical Land Case |
| Natural Frequency | 10 Hz (± 10%) |
|---|---|
| D C Resistance(DCR) | 160 Ohm (±10%) |
| Connector | 408 Male Connector |
| Voltage Sensitivity | 11V/bar±1.5dB |
| Working Depth | 0.3-100m |
