EnglishViews: 3 Author: Site Editor Publish Time: 2021-03-12 Origin: Site
For surface seismic survey, we widely use the geophone such as 4.5 Hz vertical geophones, 10 Hz vertical geophones, 14 Hz vertical geophones and 38 Hz geophones.
| Parameter | GD-4.5 | GD-10 | ||
| Frequency（HZ） | 4.5±0.5 | 10±2.5% | ||
| Alias frequency | ≥140 | ≥240 | ||
Resistance（Ω） | 375±5% | 350±3.5% | ||
| Damping | 0.56±8% | 0.68±5% | ||
| Sensitivity（v/m/s） | 28.8±5% | 22.8±2.5% | ||
| Distortion（%） | 0.3 | 0.075 | ||
| Geophone suspension mass（g） | 11.1 | 8.4 | ||
| Displacement（mm） | 3 | 1.78 | ||
| Allow dip（°） | 0 | 15 | ||
| Diameter（mm） | 25.4 | 27.4 | ||
| Height（mm） | 33.9（Vertical） | 30.15 | ||
| Weight（g） | 82.6 | 77.5 | ||
| Working temperature（℃） | -40 to +80 | -40 to +90 | ||
| Durable years | 1 | 3 | ||
| Temperature demarcation | 22℃ | 20℃ | ||
