Sonardyne UK (Head Office)
T. +44 (0) 1252 872288
F. +44 (0) 1252 876100
E. sales@sonardyne.com
www.sonardyne.com
Datasheet
Autonomous Monitoring Transponder (AMT)
Description
The Type 8305 AMT is an extension
to the functionality provided by
Compatt 5 (extensively used for
subsea survey tasks) but with unique
autonomous (without surface control)
acquisition of acoustic ranges and
sensor data. The data is time-
stamped and logged internally for
recovery via the integrated high-
speed acoustic telemetry modem. The
autonomy allows measurements to be
made over a long period of time
without a surface vessel or ROV
being available to command the
process. This enables new
applications that save vessel and
survey time so reducing cost and risk.
Precision sensors (pressure, temp,
sound velocity and dual-axis
inclinometers) are integrated and are
intelligently powered up at the
requested time and sampling period,
providing an ultra-low power
platform for up to three years
deployment, including recovery of all
data via telemetry. Sampling regimes
can be re-programmed remotely via
the telemetry link.
The AMT has many of the same
acoustic functions as Compatt5,
operates in the Medium Frequency
band and is fully Sonardyne
Wideband® compatible.
The AMT is available with a range of
transducers (omni and directional),
depth ratings and pressure housings
dependent on deployment duration
and application. Additional sensors
can be easily integrated externally
via the power and communications
port.
Typical Applications
•
Metocean platform: Subsea
acquisition of current profile,
temperature, sound velocity and
tidal height record
•
AUV survey and metrology
reference, acoustic position
reference, SV and tidal height
correction station
•
Pipeline buckle monitoring
•
Structure settlement monitoring
Key Features
•
Autonomous operation: acquires
acoustic ranges & sensor data
without surface command
•
Integrated precision sensors:
pressure, temp, SV, inclinometers
•
Options for external sensors:
current meters etc.
•
Easy to set-up with configuration
and sampling period
programmable via telemetry link
•
Integrated high speed modem
functions
•
Sonardyne Wideband compatible
navigation functions
•
3 year deployment battery life:
Alkaline and lithium battery options
•
HiPAP
®
and USBL compatible
•
Depth rated to 3000 Metres:
(Options for 5000 Metres and
7000 Metres)
•
Aluminium bronze or hard-
anodised aluminium housing
options
•
Integrated release mechanism
option
Sonardyne UK (Head Office)
T. +44 (0) 1252 872288
F. +44 (0) 1252 876100
E. sales@sonardyne.com
www.sonardyne.com
Specifications
Autonomous Monitoring Transponder (AMT)
n
132.0 mm [5.20 in]
1003.0 mm [39.49 in]
8305-3411
143.0 mm [5.63 in]
Ø130.0 mm [5.12 in]
1034.4 mm [40.72 in]
8305-3111
n
182.8 mm [7.19 in]
Ø131.5 mm [5.18 in]
1009.8 mm [39.76 in]
8305-3112
Ø131.5 mm [5.18 in]
Feature
Depth Rating*
Operating Frequency
Mechanical Construction
Transducer Beamshape
Transmit Source Level (dB re 1µPa @ 1m)
Receive Sensivity (dB re 1µPa)
Relative Positioning Accuracy*
Number of Unique Addresses (Wideband)
Battery Life (Listening, Disabled)
Safe Working Load (4:1)
Dimensions (L x Dia)
Weight In Air/Water
Endcap Sensors and Options
Temperature (±0.1°C)
Tilt Switch (±30-45°)
Strain Gauge Pressure Sensor (±0.1%)
High Precision Strain Gauge (±0.01%)
Quartz Pressure Sensor (±0.01%)
1350m, 2000m, 3000m, 6000m
Type 8305-3411
3,000 Metres
MF (18–36kHz)
Aluminium-Bronze
Omni-Directional
185-192dB (3 Levels)
85-120dB
±5cm
224
833 days (Alkaline)
1390 days (Lithium)
N/A
1003mm x 132mm
43kg/30.5kg
Type 8305-3111
3,000 Metres
MF (18–36kHz)
Aluminium
Omni-Directional
185-192dB (3 Levels)
85-120dB
±5cm
224
833 days (Alkaline)
1390 days (Lithium)
250kg
1035mm x 143mm
22.8kg/11.6kg
Type 8305-3112
3,000 Metres
MF (18–36kHz)
Aluminium
Directional
190-202dB (3 Levels)
85-120dB
±5cm
224
833 days (Alkaline)
1390 days (Lithium)
250kg
1012mm x 183mm
26kg/13.6kg
Standard
Standard
Standard
Optional
Optional
Optional
Optional
Not Available
Standard
Standard
Standard
Optional
Optional
Optional
Optional
Standard
Standard
Standard
Standard
Optional
Optional
Optional
Optional
Standard
High Accuracy Inclinometer
Range: ±90°, Accuracy: ±0.05° over 0 - ±15°; ±0.2° over 0 - ±45°
Sound Velocity (±0.06m/s)
Release Mechanism
*Dependant on fitted sensor **Depends on knowledge of sound speed
Specifications subject to change without notice – 01/2009
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