B series geophone has wide frequency band and high spurious frequency. The tolerance of all parameters is controlled within +/-5%. B series geophone has good stability, high accuracy and stable signal output. The unique double coils structure considerably makes the distortion lower.
| PS-28B Geophone specifications | |
|---|---|
| Parameter/mode | PS-28B (20℃) |
| Natural Frequency (Hz) | 28 ± 5% |
| Coil Resistance (Ω) | 390 ± 5% |
| Sensitivity (V/m/s) | 30 ± 5% |
| Damping | 0.60 ± 5% |
| Distortion (%) | |
| Spurious Frequency (Hz) | |
| Max. Motion (mm) | 1 |
| Moving Mass (g) | 10.1 |
| Dimensions (d×h) mm | 25.4 x 32 |
| Temperature Range (℃) | -40° to 70°C |
| Warranty Period (Year) | 3 |
| Weight (g) | 77 |
