Mariner Deep
Extended Duration Ocean Bottom Recorder
PRODUCT DETAILS
Featuring 10Hz geophones, Mariner Deep is designed for extended-duration seabed ocean bottom seismic data acquisition. Nodes can be deployed in depths exceeding 3,048 meters (10,000ft) with continuous recording for up to 200 days.
Features
- Continuous, cable-free 4C autonomous recording
- Low frequency 10 Hz geophones
- Battery module: 200 days operation
- Built-in, full-resolution test generator
- Solid-state flash memory: 32 GB per channel
- Internal Heading Sensor
- 3 Component Magnetic Sensor
- ±5° Accuracy
- Measurements written to header every 2,000 samples
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 Range
|
–10 to +75°C (+14 to 167°F)
|
Electrical Specifications
|
Nominal Capacitance(at 25°C 1atm)
|
10.0 nanofarads
|
|
Voltage Sensitivity
|
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 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
|
200 days operation
|
Resources
