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SENSORS

GS-20DM

GS-20DM

PRODUCT DETAILS

The GS-20DM geophone is compatible with industry-standard recording instrumentation. The GS-20DM is proven to provide high-quality data and superior field reliability for land, marsh, or transition-zone seismic data acquisition and vibration monitoring.

FEATURES

  • Low distortion < 0.20%
  • +/- 5% tight tolerance specifications
  • Ideal for 2D or 3D land and marsh seismic data recording
GS-20DM@2x

MECHANICAL SPECIFICATIONS

Orientation Omni
Moving Mass 5.6 g (0.20 oz) /td>
Maximum Coil Excursion p-p 2.0 mm (0.08 in.)
Diameter 2.22 cm (0.875 in.)
Height 2.54 cm (1.00 in.)
Weight 43 g (1.5 oz)
Operating Temperature Range –45°C to +100°C (–49 to +212°F)

ELECTRICAL SPECIFICATIONS 25°C

Frequency 28 Hz *
Spurious Frequency (typical) > 400 Hz
Distortion < 0.5%
Coil Resistance 270 Ω *
Open-Circuit Sensitivity 15.12 V/m/s (0.384 V/i/s)
Sensitivity at 70% damping 11.61 V/m/s (0.295 V/i/s)
Open-Circuit Damping 60%

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