Vertical Seismograph Geophone String
Geophone String is our flagship product,Its features below:
1.Easy maintenance, strong resistance to harsh environment, reliable waterproof performance,
high construction efficiency,
2.Assembled structure, easy to maintain, rubber waterproof caps at both ends of the wire, prolong the service life of the cable.
3.The self-tapping screw assembly structure of the upper and lower shells makes field maintenance more convenient and quicker.
4.The shell material of high strength and low water absorption material is suitable for the harshest environments,
high construction efficiency,
2.Assembled structure, easy to maintain, rubber waterproof caps at both ends of the wire, prolong the service life of the cable.
3.The self-tapping screw assembly structure of the upper and lower shells makes field maintenance more convenient and quicker.
4.The shell material of high strength and low water absorption material is suitable for the harshest environments,
HP206V 4.5Hz Vertical Geophone Element Specification
| (All parameters are specified at +20° C in the vertical position unless otherwise stated.) | ||
| Frequency | Natural Frequency (Fn) | 4.5Hz |
| Tolerance | ±0.5Hz | |
| Spurious Frequency | >120Hz | |
| Distortion | Distortion | <0.3% |
| Distortion at vertical | < 0.3% measured at 12 Hz with 0.7 in/s p-p | |
| Damping | Open Circuit Damping | 0.6 |
| Tolerance | ± 5% | |
| Coil Resistance | Standard | 375ohm |
| Tolerance | ± 5% | |
| Sensitivity | Open Circuit Intrinsic Voltage Sensitivity | 28.8 V/m/s (0.73 V/in/s) |
| Tolerance | ±5% | |
| Physical Characteristics | Moving Mass | 11 .1g (0.39 oz) |
| Max. Coil Excursion p.p. | 4mm (0.16 in) | |
| Diameter | 25.4 mm (1.0 in) | |
| Height | 36mm (1.4 in) | |
| Weight | 81 g (2.86 oz) | |
| Operating Temperature Range | ﹣40℃ - +90℃ | |
| Warranty excludes damage caused by high voltage and physical damage to the element case. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. | ||
HP206V 4.5Hz Vertical Geophone Response Curve and Phase Lag
