Product Description

SM4 Geophone 10Hz Vertical with Mueller clips connector

The SM-4 equivalent geophone element 10Hz is a conventional type of moving coil geophone with small error in working parameters and stable and reliable performance. The structure is reasonable in design, small in size and light in weight, and is suitable for seismic exploration of strata and geological environments of different depths. Single SM4 geophone 10Hz vertical in waterproof land case with spike 75mm, with 1m leader cable,with one D-Loop , terminated with Mueller clips connector.





SM4 Geophone Response Curve and Phase Lag
Specification
All parameters specified here in are rated at a temperature 20℃±2℃ .
Type
EG-10-II (SM-4 equivalent)
Natural Frequency ( Hz )
10 ± 5.0%
Coil resistance（Ω）
375 ± 5.0%
Open Circuit Damping
0.271 ± 5.0%
Damping With Shunt Resistor
0.6 ± 5.0%
Open Circuit Intrinsic Voltage Sensitivity( v/m/s )
28.8 v/m/s ± 5.0%
Sensitivity With Shunt Resistor ( v/m/s )
22.7 v/m/s ± 5.0%
Damping Calibration-Shunt Resistance （Ω）
1400
Harmonic distortion ( % )
＜0.20%
Typical Spurious Frequency (Hz )
≥240Hz
Moving Mass ( g )
11.3g
Typical case to coil motion p-p ( mm )
2.0mm
Allowable Tilt
≤20º
Operating Temperature Range ( ℃ )
-40℃ TO +100℃
Height ( mm )
32
Diameter ( mm )
25.4
Weight ( g )
74