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Triaxial Geophone 2Hz

Triaxial Geophone 2Hz is an ideal instrument for the seismic survey and industrial vibration monitoring. Inside of the triaxial geophone, three mutually perpendicular 2Hz geophone elements are arranged in Cartesian coordinates, which means that the vertical geophone element is Z direction, the east direction horizontal geophone element is X direction, and the north direction horizontal geophone element is Y direction, by which the Seismic signals in the three directions of X, Y and Z will be taken simultaneously and converted into electrical signal outputs.

ST Series Triaxial Geophone 2Hz(P/N: ST-2-3D) is fully compatible with assorted seismographs to perform HVSR, MASW, Surface Waves and Vibration monitoring with the features of high sensitivity, low distortion, good consistency, good linear response, and reasonable damping coefficient.

  • Rugged structure, good sealing and excellent waterproof performance.
  • Horizontal adjustment device equipped.
  • 7-pin blocking connector is equipped to prevent sensor damage during transportation.
  • Adjusting Screws(3pcs) are supplied for using on hard surfaces and also interchanges steel spikes(3pcs) are also supplied for using on soft earth ground.
  • A connecting cable for seismograph with 10m length is supplied with NK2721C connector, 10 pin cable connector, split spring connectors, Mueller clips or free cable end optional.
  • Delivered with a carrying case.
  • Widely used in HVSR, MASW, Surface Waves and Vibration Monitoring.
  • Compatible with almost all main stream seismographs, including but not limited to DIGOS Cube system or PASI GEA 24 system.

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Parameters for Triaxial Geophone 2Hz

Geophone TypeST-2-3D
Natural Frequency Fn(Hz)2±15%
Sensitivity (V/m/s)200±10%
Coil Resistance Rc (Ω)5800±5%
Damping Coefficient Bt0.6±15%
Harmonic Distortion D (%)≤0.2
Maximum  coil excursion p-p(mm)3.0
Moving Mass M(g)60.0
Operating Temperature(℃)-30~+55


Geophone Sensor

O.D (mm)41.20
H (mm)47.50


3D Geophone

O.D (mm)129
H (mm)152
* All parameters specified herein are rated at a temperature 20℃±2℃.

* 3- year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.

* Triaxial geophone 1Hz, Triaxial geophone 2.5Hz, Triaxial geophone 4.5Hz, Triaxial geophone 5Hz, Triaxial geophone 8Hz, Triaxial geophone 10Hz and Triaxial geophone 14Hz are also available.

* SM-6 structure geophone sensor, SM-4 structure geophone sensor, GS-20DX structure geophone sensor, GS-32CT structure geophone sensor, SG-10 structure geophone sensor and GS-One structure geophone sensor are also available.

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