Geophone Element
Geophone 4.5Hz
Geophone Element 4.5Hz Vertical / Horizontal
The geophone 4.5hz (EG-4.5-II) is a conventional type of moving coil geophone with small error in working 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-4.5-II |
Natural frequency ( Hz ) | 4.5±10% |
Damping | 0.6±5% |
Coil resistance (ohm) | 375±5% |
Open circuit sensitivity (v/m/s) | 28.8±5% |
Harmonic distortion ( % ) | ≦0.2 |
Typical spurious Frequency ( Hz ) | ≧150 |
Moving Mass ( g ) | 11.3 |
Max.coil excursion p-p (mm) | 4 |
Element Diameter (mm) | 25.4 |
Element Height (mm) | 36 |
Element Weight (g) | 86 |
Operating Temperature（℃） | -40℃ to +100℃ |
All parameters specified here in are rated at a temperature 20℃±2℃ .
Response Curves for EG-4.5-II Geophone Element:
