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What HZ of Geophone is Used for Surface Seismic Survey?

Views:2     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.

seismic geophone

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℃


 

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