Observation Station




High-Sensitivity Camera Type OVS-SKH-506A (Nippon Kaiyo Co. Ltd.)
Television camera tube 3-tube Harpicon type
Luminous intensity at image surface 0.02 Lux
Resolution => 700TV line at horizontal Center
S/N ratio 56dB (Typical)
3-CCD Camera Type OVS-152 (Nippon Kaiyo Co. Ltd.)
Television camera tube RGB 3CCD
Sensitivity 2,000 Lux / F:8.0
Resolution => 800TV line at horizontal center
S/N ratio 63dB (Typical)
Underwater Light (6 units) 100V/250W
Ocean Bottom Seismometer Type Triaxial servo velocimeter (Tokyo Sokushin Co. Ltd., VSE-11,12)
Frequency range 0.01 - 100Hz (+1dB, -3dB)
0.025 - 70Hz (+/- 3%)
Sensitivity Low range  100 kine/ full scale
High range  1 kine/ full scale
Attitude control Gimbal-type, motor-coltrolled
Scope of Control: - 15 degree ~ +15 degree
Tunami meter
(Precise pressure gauge)
Type 8B2000-I (Paroscientific, Inc.)
Range 0 – 20.68 MPa
Accuracy <= 0.01 %FS (rms)
Repeatability <= +/-0.01 %FS (rms)
Histerisis: <= +/-0.01 %FS (rms)
Resolution <= 1ppmFS (at 1 sample per second)
ADCP
(Accoustic Doppler Current Profiler)
Type BB-DR-150(Teledyne RD Instruments,Inc.)
Center frequency 150kHz
Measurement range 280m
Depth cell size 1 – 16 m
Number of depth cells 4 – 128 layers
Beam angle 20 degree
Beam width 1.5 degree
Velocity range +/- 10m/sec
Long-term accuracy 0.2cm/s or 0.2% in measurement range
CTD sensor
(Conductivity, Temperature and Depth sensor)
Type SBE9plus (Sea-Bird Electronics,Inc.)
Scan rate 24 / second
--Water Temperature--
Measurement range -5 to +35 degree C
Accuracy 0.001 degree C
Resolution 0.0002 degree C
Time response: 0.065 second
--Conductivity--
Measurement range 0 to 7 S/m
Accuracy 0.003 S/m
Resolution 0.00004 S/m
Time response 0.065 second
--Water Pressure--
Measurement range 0 to +2,000 psi
Accuracy 0.015% FS
Resolution: 0.001% FS
Time response 0.015 second
Hydrophone Type ITC-1010A (ITC Transducer Corp.)
Frequency range 4Hz – 4kHz
Nominal capacity 0.002 F
Directivity Omnidirectional
Gamma-ray sensor Scintillator Nal(TI)  3 inch-sphere-type (12E6)
Photomultiplier tube R1847-07  Hamamatsu Photonics K. K.