Geophone Element
GS-20DX Geophone 10Hz, 14Hz, 28Hz, 40Hz, 60Hz
GS-20DX Geophone 10Hz, 14Hz, 28Hz, 40Hz, 60Hz, 100Hz
The GS 20DX geophone is a conventional double-lead spring geophone with small error in operating parameters and stable and reliable performance. The structure is reasonable in design, small in size and light in weight, and is suitable for seismic exploration of strata and geological environments of different depths.
Type | EG-10-IV (GS-20DX Geophone 10Hz) |
Natural frequency ( Hz ) | 10±5% |
Open circuit damping | 0.3 |
Damping with calibration shunt | 0.70±5% |
Calibration shunt resistance(ohm) | 1000 |
Open circuit sensitivity (v/m/s) | 28 |
Sensitivity with calibration shunt(v/m/s) | 20±5% |
Coil Resistance (ohm) | 395±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧200 |
Moving Mass ( g ) | 11 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 25.4 |
Element Height (mm) | 33 |
Element Weight (g) | 87 |
Operating Temperature（℃） | -40℃ to +80℃ |
Type | EG-14-I (GS-20DX Geophone 14Hz) |
Natural frequency ( Hz ) | 14±5% |
Open circuit damping | 0.22 |
Damping with calibration shunt | 0.51±5% |
Calibration shunt resistance(ohm) | 1000 |
Open circuit sensitivity (v/m/s) | 28 |
Sensitivity with calibration shunt(v/m/s) | 20±5% |
Coil Resistance (ohm) | 395±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧250 |
Moving Mass ( g ) | 11 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 25.4 |
Element Height (mm) | 33 |
Element Weight (g) | 87 |
Operating Temperature（℃） | -40℃ to +80℃ |
Type | EG-28-I (GS-20DX Geophone 28Hz) |
Natural frequency ( Hz ) | 28±5% |
Open circuit damping | 0.27 |
Damping with calibration shunt | 0.552±5% |
Calibration shunt resistance(ohm) | 1000 |
Open circuit sensitivity (v/m/s) | 39 |
Sensitivity with calibration shunt(v/m/s) | 28±5% |
Coil Resistance (ohm) | 395±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧350 |
Moving Mass ( g ) | 11 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 25.4 |
Element Height (mm) | 33 |
Element Weight (g) | 100 |
Operating Temperature（℃） | -40℃ to +80℃ |
Type | EG-40-I (GS-20DX Geophone 40Hz) |
Natural frequency ( Hz ) | 40±5% |
Open circuit damping | 0.37 |
Damping with calibration shunt | 0.576±5% |
Calibration shunt resistance(ohm) | 1500 |
Open circuit sensitivity (v/m/s) | 42 |
Sensitivity with calibration shunt(v/m/s) | 30.4±5% |
Coil Resistance (ohm) | 575±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧380 |
Moving Mass ( g ) | 8.2 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 27 |
Element Height (mm) | 33 |
Element Weight (g) | 95 |
Operating Temperature（℃） | -40℃ to +80℃ |
Type | EG-60-I (GS-20DX Geophone 60Hz) |
Natural frequency ( Hz ) | 60±5% |
Open circuit damping | 0.52 |
Damping with calibration shunt | 0.60±5% |
Calibration shunt resistance(ohm) | 1500 |
Open circuit sensitivity (v/m/s) | 39 |
Sensitivity with calibration shunt(v/m/s) | 27.0±5% |
Coil Resistance (ohm) | 668±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧450 |
Moving Mass ( g ) | 6.5 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 27 |
Element Height (mm) | 33 |
Element Weight (g) | 93 |
Operating Temperature（℃） | -40℃ to +80℃ |
Type | EG-100-I (GS-20DX Geophone 100Hz) |
Natural frequency ( Hz ) | 100±5% |
Open circuit damping | 0.45 |
Open circuit sensitivity (v/m/s) | 23 |
Coil Resistance (ohm) | 570±5% |
Harmonic Distortion ( % ) | ≦0.2 |
Typical Spurious Frequency ( Hz ) | ≧600 |
Moving Mass ( g ) | 5 |
Max.coil excursion p-p (mm) | 1.5 |
Max.tilt angle | 20º |
Element Diameter (mm) | 27 |
Element Height (mm) | 33.5 |
Element Weight (g) | 95 |
Operating Temperature（℃） | -40℃ to +80℃ |