Ground Vibrations

| Compilation of ground motion measurements

GS-11D

GS-11D Geophone

Compilation of ground motion measurements

GS-11D Geophone

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The The GS-11D is manufactured by Geospace Technologies. It is a high output, rotating coil geophone designed and built to withstand the shocks of rough handling. The precision springs of this field proven geophone are computer designed and matched to optimize performance specifications even under the most extreme conditions.

GS-11D Specifications

Natural Frequency (Fn)

4.5 ± .75 Hz

Coil Resistance
@ 25°C ± 5%

380 Ohms

Intrinsic Voltage Sensitivity
with 380 Ohm Coil ± 10%V/in/s

.81 V/in/sec (.32 V/cm/sec)

Normalized Transduction Constant
  (V/in/sec)

042 (sq.root of Rc)

Open Circuit Damping

.34 ± 20%

Damping Constant
with 380 Ohm Coil

762

Optional Coil Resistances ± 5%

56,160 Ohms

Moving Mass ± 5%

23.6 g

Typical Case to Coil Motion P-P

.18 cm

Height
(less 3.43 mm terminals)

3.35 cm

Diameter

3.18 cm

Weight

111 g

Geophone

Geospace Technologies Homepage
OYO Geospace Homepage