Product Description
Geophone 4.5Hz Vertical with KCK Screw Fit Male connector
The geophone 4.5hz (EG-4.5-II) 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. It is equivalent to SM-6 B coil 4.5hz geophone. Widely used in industrial vibration-monitoring systems. Ideal choice for shear-wave horizontal elements. Single geophone 4.5Hz vertical in waterproof land case with spike 75mm, with 1m leader cable,with one D-Loop , terminated with KCK Screw Fit Male connector.
Geophone Response Curve and Phase Lag of Geophone 4.5Hz
Specification
All parameters specified here in are rated at a temperature 20℃±2℃ .
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Type
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EG-4.5-II
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Natural Frequency ( Hz )
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4.5±10%
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Coil resistance(Ω)
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375±5%
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Damping
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0.6±5%
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Open circuit intrinsic voltage sensitivity ( v/m/s )
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28.8 v/m/s ±5%
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Harmonic distortion ( % )
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≦0.2%
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Typical Spurious Frequency (Hz )
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≧150Hz
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Moving Mass ( g )
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11.3g
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Typical case to coil motion p-p ( mm )
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4mm
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Allowable Tilt
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≦20º
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Operating Temperature Range ( ℃ )
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-40℃ TO +100℃
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Height ( mm )
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36mm
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Diameter ( mm )
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25.4mm
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Weight ( g )
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86g
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