Overview
The VM Coastal safeguards data quality, opens up new and unprecedented opportunities to the scientific community, and offers operational convenience and reduced complexity.
The VM Coastal package includes the Signature1000, 500 or 250, allowing for great versatility in both the vessel-mounted and bottom-mounted configurations. By using a state-of-the-art and user-friendly vessel-mounted package, measurement errors and initial installation time can be greatly reduced.
- Currents
- Echosounder
- Bottom track
Highlights
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A coherent system that is quick and convenient to operate
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Fifth echosounder beam for sediment measurements down to the bottom (1000/500)
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Ethernet ADCP and GNSS hardware, offering tight network timing
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Simultaneous current and depth information in one place (1000/500)
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Outstanding bottom-track performance, even under challenging conditions
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Straightforward data-acquisition and processing software
Usage
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Coastal surveys, up to 200 m depth
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Port and harbor mapping
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Sediment transport studies
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Large-scale mixing studies
Setup
Most vessels can accommodate the compact VM Coastal. A fairing bracket is included to house the Signature ADCP and reduce drag. Other components include a GNSS and a processing unit for pulling together system data.
Deployment
Configure, view, forward and store current velocity data in real time from the VM acquisition software while onboard the vessel. Gather current speed and direction information as well as biomass or sediment estimates using the optional scientific echosounder.
Data
Process and export subsets of interest using the VM review software once your survey has ended. A connection to Qrev makes it possible to calculate discharge independently.
Profiling range* |
30 m |
Cell size |
0.2–2 m |
Max no. cells |
256 |
Min. blanking |
0.1 m |
Minimum accuracy |
0.3% of the measured value ± 0.3 cm/s |
Velocity resolution |
0.1 cm/s |
Maximum sampling rate |
14 Hz |
No. of beams |
4 slanted at 25 degrees |
* Maximum range depends on acoustic scattering conditions and transmit power. |
Profiling range* |
70 m |
Cell size |
0.5–4 m |
Max no. cells |
256 |
Min. blanking |
0.5 m |
Minimum accuracy |
0.3% of the measured value ± 0.3 cm/s |
Velocity resolution |
0.1 cm/s |
Maximum sampling rate |
6 Hz |
No. of beams |
4 slanted at 25 degrees |
* Maximum range depends on acoustic scattering conditions and transmit power. |
Profiling range* |
200 m |
Cell size |
1–8 m |
Max no. cells |
256 |
Min. blanking |
0.5 m |
Minimum accuracy |
1% of the measured value ± 0.5 cm/s |
Velocity resolution |
0.1 cm/s |
Maximum sampling rate |
2 Hz |
No. of beams |
4 slanted at 20 degrees |
* Maximum range depends on acoustic scattering conditions and transmit power. |
Single ping std @ 3 m/s |
0.5 cm/s |
Long-term accuracy |
± 0.1% / ± 0.1 cm/s |
Minimum altitude |
0.2 m |
Maximum altitude |
30 m |
Velocity resolution |
0.01 mm/s |
Maximum sampling rate |
4 Hz |
Single ping std @ 3 m/s |
0.5 cm/s |
Long-term accuracy |
± 0.1% / ± 0.1 cm/s |
Minimum altitude |
0.3 m |
Maximum altitude |
70 m |
Velocity resolution |
0.01 mm/s |
Maximum sampling rate |
2 Hz |
Single ping std @ 3 m/s |
TBA |
Long-term accuracy |
TBA |
Minimum altitude |
5 m |
Maximum altitude |
205 m |
Velocity resolution |
0.01 mm/s |
Maximum sampling rate |
1 Hz |
No. of beams |
1 vertical |
Maximum sampling rate |
2 Hz |
Max. range |
30 m |
Vertical resolution / accuracy |
0.001 m / 1% of the measured value** |
** Assuming a constant speed of sound |
No. of beams |
1 vertical |
Maximum sampling rate |
2 Hz |
Max. range |
70 m |
Vertical resolution / accuracy |
0.001 m / 1% of the measured value** |
** Assuming a constant speed of sound |
No. of beams |
N/A* |
Maximum sampling rate |
N/A |
Max. range |
N/A |
Vertical resolution / accuracy |
N/A |
* Depth measurement via the 4 slanted beams. |
|
Sampling |
Same as velocity for slanted beams |
Resolution |
0.5 dB |
Dynamic range |
70 dB slanted beams |
No. of beams |
4 slanted at 25 degrees |
Beam width |
2.9° |
Sampling |
Same as velocity for slanted beams |
Resolution |
0.5 dB |
Dynamic range |
70 dB slanted beams |
No. of beams |
4 slanted at 20 degrees |
Beam width |
2.3° |
No. of beams |
1 vertical |
Maximum sampling rate |
2 Hz |
Max. range |
30 m |
Resolution |
3 mm - 0.25 m |
Number of bins |
10,000 |
Transmit pulse length |
16 μs - 0.5 ms |
Transmit pulse |
Monochromatic or pulse compressed (25% BW) |
Resolution / dynamic range |
0.01 dB / 70 dB |
No. of beams |
1 vertical |
Maximum sampling rate |
1 Hz |
Max. range |
70 m |
Resolution |
6 mm - 0.5 m |
Number of bins |
11,000 |
Transmit pulse length |
32 μs - 1 ms |
Transmit pulse |
Monochromatic or pulse compressed (25% BW) |
Resolution / dynamic range |
0.01 dB / 70 dB |
No. of beams |
N/A |
Maximum sampling rate |
N/A |
Max. range |
N/A |
Resolution |
N/A |
Number of bins |
N/A |
Transmit pulse length |
N/A |
Transmit pulse |
N/A |
Resolution / dynamic range |
N/A |
Temperature sensor range /accuracy |
-4 °C to 40 °C / 0.1 °C |
Pressure |
Piezoresistive |
Standard range |
0-300 m (inquire for options) |
Accuracy/precision |
0.1% FS / better than 0.002% of full scale |
Compass and tilt |
Solid-state magnetometer |
Data recording |
16 GB (inquire for options) |
Data cable |
10 m Ethernet cable (inquire for options) |
IO |
Ethernet |
DC Input |
15–48 V DC |
Operating temperature |
-4 °C to 40 °C |
Storage temperature |
-20 °C to 60 °C |
Vibration |
IEC 60068-1/IEC60068-2-64 |
EMC approval |
IEC 61000 |
Depth rating |
300 m – Bottom track is limited to surface vessels |
Connectors |
Straight fitted MCBH6F (Ethernet) |
Housing |
Small instrument housing |
Material |
POM with titanium fasteners and additional, reinforced transducer cups for VM 250 |
Processor/memory |
Intel i5/8 GB |
Hard disk |
SSD, 500 GB |
Operating system |
Windows® 10 |
Housing |
Half 19" 2 HE case |
Dimensions |
265x110x340 mm |
Input |
24 V DC, 20 W typical. (230|120 V AC adaptor supplied) |
Total weight |
5.75 kg |
Connections |
Power, Signature ADCP, AN_GNSS, 2x HDMI, 2xLAN, 3x USB |
Acquisition |
Signature VM - binary, GNSS compass - binary |
Timing |
< 0.6 s, IEEE1588/PTP for absolute timestamping (GNSS compass/Signature VM) |
Configuration |
Signature VM (partly)Advanced Navigation GNSS compass |
Display |
Vessel track in map, Bottom-track velocity, Bottom-track depth, Velocity magnitude and direction, Echo amplitude, Echo correlation, Vertical depth*, Vertical echogram; corrected relative volume backscatter (1000/500)* |
Status |
Signature VM + AN_GNSS compass |
Output |
Online: NMEA data formats. Offline: CSV, ASCII VMT, MATLAB, MATLAB VMT, MATLAB QRev, KML |
* Signature1000 and 500 |
Brand and model |
Advanced navigation GNSS compass v2 |
Position accuracy (with RTK) |
Horizontal: 0.01 m, Vertical: 0.015 m |
Heading accuracy |
0.2° |
Supported navigation systems |
GPS L1_L2, GLONASS G1_G2, GALILEO E1_E5b, BeiDou B1_B2 |
Heave accuracy |
0.05 m |
Communication |
Ethernet 10/100 |
Timing |
PTP, NTP timeserver functionality |
Protocol |
NMEA 0183, AN Packet Protocol, TSS1 Simrad, RTCM |
Accelerometer dynamic range |
± 2 g |
Gyro dynamic range |
± 250°/sec |
Magnetometer dynamic range |
± 1.3 Gauss |
Pitch and roll range / resolution |
± 90° (pitch), ± 180° (roll)/0.01° |
Pitch and roll accuracy |
± 2° (dynamic)3), ± 0.5° (static, ± 30°) |
Heading range / resolution |
360°, all axes /0.01° |
Heading accuracy |
± 3° (dynamic)3), ± 2° (static, tilt < 20°) |
Sampling rate |
Same as measurement rate |
Signature1000 VM
Signature500 VM
Signature250 VM
5-beam head (1000, 500)
4-beam head (250)
5-beam head (adds 500 kHz center transducer for wave measurements) (250)
Short, no room for battery (external battery canister for bottom mount use)
16 GB SD card data logger
64 GB SD card data logger
128 GB SD card data logger
256 GB SD card data logger
Pressure sensor 0-300 m, 0.1% (standard)
Pressure sensor 0-50 or 0-100 m, 0.1% (option)
AD2CP: 10 m Ethernet cable with MCIL6MP, Power/RJ45 at dry end (standard)
AD2CP: 10-100 m Ethernet cable (specify length) with MCIL6MP-PWR/RJ45
GNSS: GC-POE-CABLE-20M Ethernet cable for GNSS Compass 20 m (please inquire for other length)
Vessel Mounted over the side
Vessel Hull mounted
Unmanned Surface Vehicle (USV) mounted (please inquire)
Compass and Tilt sensor
AHRS
Battery canister, aluminium for 36*D pack w/cable to Signature / Gen 2 AWAC, 8-pin Inline (500m rating)
Battery canister, aluminium for 2*36*D pack w/cable to Signature / Gen 2 AWAC, 8-pin Inline (500m rating)
Battery, 18 V - 540 Wh, alkaline
The standard battery for Signature & Generation 2 AWAC instruments.
Battery, 19 V - 1800 Wh, lithium
An optional high-capacity lithium battery for Signature & Generation 2 AWAC instruments.
Battery pack, 5-pack, 18 V - 540 Wh, alkaline
The standard battery for Signature & Generation 2 AWAC instruments.
Battery pack, 10-pack, 18 V - 540 Wh, alkaline
The standard battery for Signature & Generation 2 AWAC instruments.
Set of Anti-fouling patches for Signature500
This set is suitable for Signature500
Set of Anti-fouling patches for Signature1000
This set is suitable for Signature1000
