GS-ONE OMNI 10 Hz Geophone
PHYSICAL SPECIFICATIONS
| Moving Mass |
13.2g |
0.466 oz |
| Maximum coil excursion p-p |
6.10 mm |
0.240 in. |
| Minimum coil excursion p-p |
0.89 mm |
0.035 in. |
| Diameter |
30.5 mm |
1.2 in. |
| Height |
43.2 mm |
1.7 in. |
| Weight |
125 g |
4.40 oz |
| Operating and Storage Temperature Range |
–40°C to +100°C |
–40°F to +212°F |
ELECTRICAL SPECIFICATIONS
All parameters are specified with 7.5 kΩ load at 25°C in all tilt positions unless otherwise stated.
| Frequency |
10 Hz |
| Spurious Frequency |
150 Hz |
| Open Circuit Sensitivity |
100V/m/s (2.55 V/i/s) |
| Resistance with Shunt |
2500 Ω |
| Sensitivity at 70% Damping |
85 V/m/s (2.15 V/in/s) |
| Total Damping |
70% |
| Distortion at all tilt angles |
<0.2% measured at 12 Hz with 0.1 in/s p-p |
Hydrophone
PHYSICAL SPECIFICATIONS
| Maximum Operating Pressure |
30.4 MPa (4,400 psi) |
| Maximum Working Depth |
3,048 m (10,000 ft.) |
| Operating Temperature Range1 |
–10 to +75°C (+14 to 167°F) |
ELECTRICAL SPECIFICATIONS
| Nominal Capacitance(at 25°C 1atm) |
10.0 nanofarads |
| Voltage Sensitivity2 |
8.9 μV/μBar |
| Sensitivity (dBv ref 1μPa @ 25°C) |
–201 dB re 1V/μPa |
| Frequency Response (into 2 MΩ load) |
1 –30,000 Hz |
MECHANICAL SPECIFICATIONS (Housing)
|
Metric |
US |
| Length |
358 mm |
14.1 in. |
| Width |
222 mm |
8.8 in. |
| Height |
118 mm |
4.7 in. |
| Weight in Air |
18 kg |
39.6 lbs. |
| Weight in Seawater |
12 kg |
26.4 lbs. |
| Maximum Operating Pressure |
30.4 MPa/304 Bar |
4,400 psi |
| Maximum Operating Depth |
3,048 M |
10,000 ft. |
| Operating Temperature Range |
–5°C to +60°C |
+23°F to +140°F |
| Storage Temperature Range |
–10°C to +60°C |
+14°F to +140°F |
ELECTRICAL SPECIFICATIONS
Digitized 4C Recording Station: 4 Channel, 24 Bit A/D Digitizer 3C Orthogonal oriented GS-One OMNI 10Hz -Geophones 1 DEEPENDER Hydrophone
| Digitization |
24-bit Delta-Sigma |
| Sample Interval |
0.5, 1, 2, 4 ms |
| Pre-amplifier Gains |
0, 6, 12, 18, 24, 30, 36 dB |
| Maximum Input Signal |
1.8 Vrms |
| Equivalent Input noise (@2ms sample interval) |
0.12 μVrms |
| Gain Accuracy |
Better than 1% |
| Anti-alias Filter |
83% Nyquist |
| Instantaneous Dynamic Range |
129dB @ 2 ms sample interval |
| THD |
<0.2% |
| Distance Between Digitizer & Farthest Sensor |
<18 cm |
| Distance Between All Sensors |
<11 cm |
| Flash Memory |
32 GB per channel |
| Frequency Response |
1 Hz – 825 Hz @ 1/2 ms sample interval |
| Battery Module |
150 days operation |
CLOCK SPECIFICATIONS
| Days |
30 |
60 |
90 |
100 |
| Max Uncorrected Drift |
2 ms |
8 ms |
17 ms |
21 ms |
| Corrected Drift |
< .25 ms |
< .5 ms |
1 ms |
1 ms |
