| Natural Frequency | 28Hz±5% |
|---|---|
| Geophone Case | Horizontal Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Natural Frequency | 40Hz±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 |
| Natural Frequency | 10Hz±2.5% |
|---|---|
| Geophone Case | Vertical Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Frequency | 4.5Hz |
|---|---|
| Sensitivity | 28.8 V/m/s |
| Coil Resistance | 375Ω |
| Direction | Vertical |
| Diameter | 25.4 Mm |
| Frequency | 5Hz |
|---|---|
| Sensitivity | 80 V/m/s |
| Coil Resistance | 1850Ω |
| Direction | Vertical |
| Diameter | 32 Mm |
| Frequency | 4.5Hz |
|---|---|
| Sensitivity | 100 V/m/s |
| Coil Resistance | 3800Ω |
| Direction | Vertical |
| Diameter | 25.4 Mm |
| 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 |
| Natural Frequency ( Hz ) | 14Hz ± 5% |
|---|---|
| Sensitivity With Shunt Resistor ( V/m/s ) | 28 V/m/s ± 2.5% |
| Coil Resistance | 375 Ω ± 5% |
| Open Circuit Damping | 0.2 ±5% |
| Harmonic Distortion ( % ) | ＜0.2% |
| Nature Frequency Hz | 4.5Hz±17% |
|---|---|
| Sensitivity | 90V/m/s±10% |
| Opening Circuit Damping | 0.3±20% |
| Damping With 20KΩ Shunt Resistor | 0.596±20% |
| Coil Resistance | 2000 Ω±5% |
