2HZ / 2.5HZ Seismic Sensing Geophone

Application

2Hz/ 2.5Hz seismic sensing geophones are mainly used for deep seismic observation, advanced prospecting, natural earthquake investigation, measuring and monitoring of micro-vibration of bridges, dams, railways and highways etc.

Specification 1. 2Hz seismic sensing geophone
Type CDJ-Z2A CDJ-P2A CDJ-S2A CDJ-Z2B CDJ-P2B CDJ-S2B CDJ-Z2C CDJ-P2C CDJ-S2C
Type A 2Hz vertical geophone Type A 2Hz horizontal geophone Type A 2Hz three-component geophone Type B 2Hz vertical geophone Type B 2Hz horizontal geophone Type B 2Hz three-component geophone Type C 2Hz vertical geophone Type C 2Hz horizontal geophone Type C 2Hz three-component geophone
Natural frequency Fn (Hz) 2±10% 2±10% 2±10%
Sensitivity G(v/cm/s) 1.2±10% 3.5±10% 2±10%
Coil resistance Rc(KΩ) 1600±5% 13000±5% 6040±5%
Resistance R(KΩ) 1540±5% 12800±5% 5800±5%
Damping coefficient Bt: 0.7±10% 0.7±10% 0.7±10%
Harmonic distortion D(%) ≤0.2 ≤0.2 ≤0.2
Insulation resistance R(MΩ) ≥20 ≥20 ≥20
Maximum coil displacement P-P (mm) 3 3 3
Suspension weight M (g) 60 60 60
Operating temperature (℃) -25~+55 -25~+55 -25~+55
Size Core Diameter (mm) φ38.5 φ38.5 φ38.5
Height (mm) 47 47 47
Weight (mm) 0.25 0.25 0.25
sheath W×L (mm) 50x60 55x68 128 50x60 55x68 128 50x60 55x68 128
Height (mm) 87 87 134 87 87 134 87 87 134
Weight (kg) 0.48 0.5 2.35 0.48 0.5 2.35 0.48 0.5 2.35
2. 2.5Hz seismic sensing geophone
Type CDJ-Z2.5A CDJ-P2.5A CDJ-S2.5A CDJ-Z2.5B CDJ-P2.5B CDJ-S2.5B CDJ-Z2.5C CDJ-P2.5C CDJ-S2.5C
Type A 2Hz vertical geophone Type A 2Hz horizontal geophone Type A 2Hz three-component geophone Type B 2Hz vertical geophone Type B 2Hz horizontal geophone Type B 2Hz three-component geophone Type C 2Hz vertical geophone Type C 2Hz horizontal geophone Type C 2Hz three-component geophone
Natural frequency Fn (Hz) 2.5±10% 2.5±10% 2.5±10%
Sensitivity G(v/cm/s) 1.2±10% 3.5±10% 2±10%
Coil resistance Rc(KΩ) 1600±5% 13000±5% 6040±5%
Resistance R(KΩ) 1540±5% 12800±5% 5650±5%
Damping coefficient Bt: 0.7±10% 0.7±10% 0.7±10%
Harmonic distortion D(%) ≤0.2 ≤0.2 ≤0.2
Insulation resistance R(MΩ) ≥20 ≥20 ≥20
Maximum coil displacement P-P (mm) 3 3 3
Suspension weight M (g) 60 60 60
Operating temperature (℃) -25~+55 -25~+55 -25~+55
Size Core Diameter (mm) φ38.5 φ38.5 φ38.5
Height (mm) 47 47 47
Weight (mm) 0.25 0.25 0.25
Sheath W×L (mm) 50x60 55x68 128 50x60 55x68 128 50x60 55x68 128
Height (mm) 87 87 134 87 87 134 87 87 134
Weight (kg) 0.51 0.5 2.35 0.51 0.5 2.35 0.51 0.5 2.35
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China Geological Equipment Group Co., Ltd.

Add.: 5th Floor, Botai Mansion, No. 221 Wangjing Xiyuan, Beijing 100102

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