| Natural Frequency ( Hz ) | 100Hz ± 10% |
|---|---|
| Sensitivity With Shunt Resistor ( V/m/s ) | 35.0 V/m/s ± 5% |
| Coil Resistance | 820 Ω ± 10% |
| Moving Mass | 9.0g |
| Harmonic Distortion ( % ) | ＜0.2% |
| Nature Frequency Hz | 5Hz ±7.5% |
|---|---|
| Sensitivity | 80±5% V/m/s |
| Distortion | ≤0.1% |
| Opening Circuit Damping | 0.6±7.5% |
| Coil Resistance | 1850 Ω±5% |
| Frequency | 4.5Hz |
|---|---|
| Sensitivity | 28.8 V/m/s |
| Coil Resistance | 375Ω |
| Direction | Triaxial |
| Geophone Case | Land Case |
| Natural Frequency | 10Hz±5% |
|---|---|
| Geophone Case | Vertical Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Cable O.D | 4.6mm |
| Name | 14 Hz Borehole Geophone |
|---|---|
| Natural Frequency | 14Hz±5% |
| Geophone Case | Waterproof Land Case |
| Spike | 75mm Spike |
| Lead-in Cable | 1M Cable |
| Name | Horizontal Geophone 4.5Hz |
|---|---|
| Natural Frequency | 4.5Hz±10% |
| Geophone Case | Waterproof Land Case |
| Spike | 75mm |
| Lead-in Cable | 1 M |
| Natural Frequency | 10Hz±2.5% |
|---|---|
| Geophone Case | Marsh Case |
| Spike | 75mm |
| Geophone Connection | 6X2 |
| Cable O.D | 5.33mm |
| Name | 2Hz±10% Low Cost 3 Component Geophone Of Rock Layer |
|---|---|
| Natural Frequency | 2Hz±10% |
| Sensitivity/G (v/cm.s-1) | 2±10% |
| Coil Resistance/ Rc(Ω) | 6040±5% |
| Internal Resistance/ R（Ω） | 5800±5% |
| Natural Frequency | 14Hz±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 |
