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Reinforced 14Hz Geophone for Land, Desert, Snow, Marsh and TZ

The reinforced 14hz geophone (ST-14N) is designed equivalent to SM-4 structure, which is for low weight, long field-life,and ultra reliable performance. Precision engineered components and computerized test equipment ensure consistency in manufacture and operation throughout and beyond the limited replacement guarantee period of three years.

  • Precision machine, rotating coil design.
  • Precious metal contacts for consistent reliable &prolonged field performance.
  • Vertical and Horizontal elements available and also suitable for 3-C applications.
  • Different type of geophone cases which are suitable for land,desert, snow, marsh and transition zone respectively.
  • Steel Spike or Brass Spike optional.
  • Widely used in structural and industrial monitoring system.
  • 3-year limited warranty on basic element exclusive of high voltage, lightening or physical abuse.
  • For 2-D and 3-D seismic exploration with bandwidth from 10Hz up to 190Hz.

GS-20DX 14Hz equivalent geohpone is also available.

Click here and download data sheet of 14hz geophones or contact us to get special discounts.

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For any inquiries, please contact with our Marketing Team at sales@seis-tech.com or Supporting Team at info@seis-tech.com.

MAIN TECHNICAL PARAMETERS
Type ST-14N

(Equivalent to SM-4,14hz)

ST-20DX, 14hz

(Equivalent to GS-20DX,14hz)

Natural frequency ( Hz ) 14 ± 5% 14±5%
Open circuit damping 0.2 ±5% 0.22
Damping with Shunt Resistor 0.6 ± 5% 0.51±5%
Open Circuit Intrinsic Voltage Sensitivity(V/m/s) 28.8 28.0
Sensitivity with Shunt Resistor(V/m/s) 18.2 ± 5% 20.0±5%
Coil Resistance (ohm) 375 ± 5% 395±5%
Harmonic Distortion ( % ) <0.2 ≤0.2
Typical Spurious Frequency ( Hz ) ≧240 ≥250
Moving Mass ( g ) 11.6 11.0
Max.coil excursion p-p (mm) 2.0 1.5
Max.tilt angle 20º 20º
Element Diameter (mm) 25.4 25.4
Element Height (mm) 32 33.5
Element Weight (g) 74 87.0
Operating Temperature(℃) – 40℃ to + 100℃ – 45℃ to + 100℃
Warranty Period 3 years 3 years
● 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.

 

– Other type of geophones are also available: SM-4 Equivalent, SM-6 Equivalent, SM-24 Equivalent, SG10 Equivalent, GS-20DX Equivalent, GS-32CT Equivalent, GS ONE Equivalent, 1Hz, 2Hz, 2.5Hz, 3Hz, 4Hz, 4.5Hz, 8Hz, 10Hz, 14Hz, 15Hz, 28Hz, 30Hz, 38Hz, 40Hz, 60Hz,80Hz and 100Hz.

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