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LGT-SM Seismic Geophone
LGT-SM Seismic Geophone
  Instruction
LGT-SM seismic Geophone is designed to offer cost-effective performance in seismic exploration, main parametes controlled within ± 2.5%. Low distortion, combined with durable specifications, provide high-fidelity data in 2-D and 3-D surveys. It has 3-year limited warranty. 
Specifications

Type  LGT-SM24 LGT-SM24A
Natural Frequency (Hz) 10±2.5% 10±2.5%
Open Circuit Damping 0.25±2.5% 0.271±2.5%
Close Circuit Damping  0.6+5% (1339Ω) 0.6±2.5%
0.6865% (1000Ω)
Intrinsic Voltage Senditivity (V/cm/s) 0.288±2.5 0.288±2.5
Sensitivity with Shunt Resistance (V/cm/s)  0.225+5% (1339Ω) 0.227±2.5
0.2095% (1000Ω)
Coil Resistance(Ω) 375±2.5 375±2.5
Close Direct Current Resistance 293 or 273 296±2.5
Harmonic Distortion 0.1% 0.1%
Typical Spurious Frequency 250 250
Moving Mass (g) 11 11.3
Coil Excursion p-p(mm) 2 2
Maintains Fn Specifications to Tilt Angle  20 20
Core Unit Diameter (mm) 25.4 25.4
Core Unit Height (mm) 32 32
Core Unit Mass (g) 74 74
Operating Temperature -40 to +90 -40 to +90
Warranty (Year) 3 3

 

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