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Technical brief
Octopus 760-
Geophysical acquisition system
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Octopus 760S
single acquisition user selectable for sidescan OR sub-bottom
profiler
Octopus
760D
dual acquisition simultaneous sidescan AND sub-bottom profiler
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INPUTS
AND
OUTPUTS
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760
Standard –
single acquisition card |
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760
Dual Acquisition –
as standard 760 with the following additional features. |
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Note: |
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With single acquisition card,
the 760 is user configurable for sub-bottom or sidescan
acquisition.
With dual acquisition cards, the 760 supports simultaneous
sub-bottom and sidescan sonar acquisition. |
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Analogue inputs |
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4 independent 16 bit channels scalable from 125mV
to 5V configurable as 4 x sidescan sonar OR
1 x sub-bottom + analogue heave input
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2 independent 16 bit channels scalable
from 125mV to 5V configured as 1 x sub-bottom + analogue
heave input. |
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Analogue outputs |
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2 analogue outputs, selectable source,
synchronous with trigger out. |
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1 analogue output, synchronous with trigger
out. |
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Trigger input |
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Single trigger input with variable threshold,
synchronises all channels. |
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Single trigger input with variable threshold.
Can operate asynchronously to main trigger. |
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Trigger outputs |
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Internal trigger (5v) user selectable
range, 25-1000m. Delayed trigger synced to start of
sub-bottom acquisition. |
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Internal trigger (5v), user selectable
range 50 - 1000mS. Delayed trigger synced to start of
sub-bottom acquisition. |
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Navigation & fix
data |
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2 x RS232 serial inputs (9 pin D-type)
for NMEA navigation (GGA, GLL, VTG, RMC etc.) or Octopus fix
and annotation strings.
Additional inputs on request. |
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GPS |
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Optional in-built GPS (with DGPS
and/or WASS) for fully self contained operation. Antenna connection
at rear. Available mid 2004 |
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Printer
interfaces |
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Centronics (25 way D-type)
interface for Octopus, EPC, Ultra and Isys printers. SCSI
interface for Alden/GeoPrinter (SCSI interface optional) |
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Network |
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10/100/1000 MbitS-1 Ethernet interface
(RJ45).
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Other interfaces |
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USB x 2 (standard)
SCSI II (optional), others available on request. |
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Recording devices |
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Internal 2.5" shock mounted
hard disk (60Gb)
Single DVD RAM/CD-R drive as standard.
Optional second DVD RAM/CD-R.
Other devices such as DAT, removable HDD etc. available
on request. |
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Recording formats
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Sidescan sonar - XTF, Coda,
GeoPro
Sub-bottom profiler - SEGY, Coda, XTF
All data is recorded raw (without gain or processing
applied). |
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Sidescan |
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Up to 4 channels of sidescan
in vertical scrolling waterfall display with co-registered
oscilloscope.
All gain and processing controls on-screen. |
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Sub-bottom |
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Single channel sub-bottom
profiler display, horizontal scrolling with co-registered
oscilloscope display. Pan and zoom functions for optimum
data view. All gain and processing controls on-screen.
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Dual format |
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Simultaneous vertically scrolling
sidescan AND horizontally scrolling sub-bottom. |
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Navigation |
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All navigation, fix, annotation
and status information shown on all screens. |
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User Interface |
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Familiar Octopus 7 key interface
allowing quick and easy navigation to all functions
without the need for a mouse. Arrow keys snap between
groups of controls and allow selection of specific functions.
Y & N keys allow settings to be saved or cancelled.
PAGE key allows rapid selection of display screens. |
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Sidescan |
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Channel-independent gain &
TVG. Bottom tracking, slant-range correction. |
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Sub-bottom |
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Gain, three stage TVG, high
& low pass time varied filters (TVF), time varied
stacking, swell compensation (automatic or external
heave input). |
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Dimensions |
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443mm(w) x 355mm(h) x 235mm(d)
(19" rack compatible). |
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Weight |
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15kg |
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Power |
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90-250Vac 47-400Hz, 200Watts.
Optional 24Vdc
Optional in-built UPS coupled with automatic power management
and controlled shutdown capability guards against power
loss problems. NB. requires optional 24V battery pack
in place of second DVD drive |
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Construction |
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Rugged but lightweight aluminium
chassis with anodised front panel |
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Display |
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High-brightness 15" TFT
screen, 1024x768 resolution |
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Controls |
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Octopus 7-key user controls
for all functions |
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Alternative solutions
