GS-One 3-C with three Cartesian (V/H1/H2) geophone design and
aluminum housing.
Geospace Technologies - Sensors
GS-One 3-C
Dimensions:
Height: 10 in 25.4 cm
Lead Length: (as shown) 39 in 1.0 m
Diameter: 2.5 in 6.35 cm
Total Weight: (as shown) 3.73 lbs 1.69 kg
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. 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.
Electrical:
VERTICAL
All parameters are specified at 25°C in the vertical position unless otherwise stated.
Open-circuit sensitivity 2.18 V/in/s (85.8 V/m/s) +5%, -3.5%
Frequency 10 Hz ±3.5%
Spurious frequency >240 Hz
Distortion from vertical to ± 10tilt <0.15% measured at 12 Hz with 0.7 in/s p-p
Distortion at vertical 0.05% TYPICAL
Open-circuit damping 0.48 to 0.54
Coil resistance 1800 Ohm ±5%
Sensitivity with 20K load 2.00 V/in/s (78.7 V/m/s) TYPICAL
Damping with 20K load 0.70 TYPICAL
Electrical:
HORIZONTAL
GS-One 3-C - Specifications
GS-One3-C_convential_Al_041712_TablesDims2
7007 Pinemont • Houston, Texas, U.S.A. • www.oyogeospace.com Tel: 713 986-4444 • Fax: 713 986-4445
OYO Geospace Canada, Inc. 2735-37 Avenue N.E. Calgary, Alberta, Canada T1Y 5R8 403 250-9600
OYO Geo-Impulse International LLC Kirovogradskaya, 36 Ufa, Baskortostan, Russia 450001 011 (7) 3472 25 39 73
OYO Geospace China Room 700, 7th Floor, Lido Office Tower, Lido Place Jichang Road, Jiang Tai Road, Beijing, 100004, P.R.China 011 (86) 10 643 78 758
OYO Instruments, Europe Ltd. F3 Bramingham Business Park, Enterprise Way, Luton Bedfordshire LU3 4BU, England 011 44 (0) 1582 573 980
Regional Offices
Geospace Technologies - Sensors
Mechanical:
Specifications: Metric US
Moving Mass 14 gm. 0.49 oz.
Maximum coil excursion p-p 4.06mm 0.16 inch
Diameter 30.5 mm 1.2 inch
Height 40.7 mm 1.6 inch
Weight 130 gm. 4.60 oz.
Operating Temperature Range -40C to +100C -40F F
US Patent 8,098,546
NOTE: Specifications subject to change on sole discretion of Geospace Engineering Resources International
All parameters are specified at 25°C in the horizontal position unless otherwise stated.
Open-circuit sensitivity 2.18 V/in/s (85.8 V/m/s) +5%, -3.5%
Frequency 10 Hz ±3.5%
Spurious frequency >240 Hz
Distortion from horizontal to ± 3tilt <0.15% measured at 12 Hz with 0.7 in/s p-p
Distortion at horizontal 0.05% TYPICAL
Open-circuit damping 0.48 to 0.54
Coil resistance 1800 Ohm ±5%
Sensitivity with 20K load 2.00 V/in/s (78.7 V/m/s) TYPICAL
Damping with 20K load 0.70 TYPICAL