The GS-One 3-C geophone can either be a conventional 3-C design with one vertical and two horizontal geophones, or it can have three Gal’perin geophones.
Geophone
The GS-One is the best geophone to be used for single geophone per channel recording because of its high transduc-tion constant. The GS-One transduction constant is 0.051, compared to 0.025 to 0.037 for most popular geophones.
This means the GS-One has higher voltage sensitivity than any other geophones with the same coil resistance which means that in practical application the GS-One will provide better signal to noise ratio and will detect smaller signal than most popular geophones.
The GS-One is designed to produce the ideal 70% damping without the use of an external damping resistor when the input resistance of the recording system is 20K Ohm. The GS-One also offers close tolerances, high spurious and low distortion characteristics that are desirable for seismic surveys.
Specifications
• Natural Frequency (Fn): 10 Hz ±3.5%
• Distortion: < 0.1%
• Max. tilt angle for +/- 3°
distortion specification
• Sensitivity: 2.18 V/in/s (85.8 V/m/s) ±3.5%
• Damping: 0.67 to 0.73 with 20K Ω
• Open-circuit Damping 0.48 to 0.54
• DC Resistance: 1800 Ohm +/- 5%
• Spurious: > 240 Hz
• Moving Mass 0.49 oz (14 gm)
• Minimum coil excursion p-p 0.10 inch (2.54 mm)
• Diameter: 1.19 inch (30.2 mm)
• Height: 1.57 inch (39.9 mm)
• Weight: 4.6 oz. (130 gm.)
• Operating Temp. Range -40°C ~ +100°C (-40°F ~ +212°F)
All parameters are specified at 25 °C
Specifications subject to change without notice
Patent Pending
The following table shows the comparison between the GS-One and 3x2 and 6x1 element arrays.
DC Resistance Fn Damping Sensitivity Distortion
GS-One 1800 10 0.7 2.18 < 0.1%
3x2 425 10 0.7 1.5 0.1%
6x1 1700 10 0.7 3.0 0.1%
this some overview of this instrument
Vendor Of this Geophone
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