Aperçu
The Signature1000 ADCP is the optimal tool for turbulence measurements. With a maximum sampling frequency of 16 Hz, it gives the scientific community an unprecedented opportunity to study a part of the turbulence spectrum that has never been accessible before. Vertical resolution current profiles of 2 cm over a range of up to 8 m further increase the Signature1000’s versatility, as does its ability to measure wave height and direction. The center beam also functions as a biological echosounder, enabling high-resolution measurements of biomass in the water column.
- Currents
- Turbulence
- Waves
- Echosounder
Points forts
-
Five beams for mean currents and turbulence
-
Wave height and direction
-
Very small size and weight
Utilisation
-
Turbulence studies
-
Sediment transport studies
-
3D profiling using a wire walker
-
Surf zone dynamics
-
Studies of tidal currents
-
Fine-scale mixing studies
-
Vessel-mounted coastal surveying
-
Directional wave measurements
-
Coastal studies
-
Suitable for wave buoys
Setup
The Signature Deployment software guides users through setup to ensure even the most detailed concurrent measurement schemes are handled correctly and makes certain all users can fully utilize the capabilities of the Signature1000 ADCP, including current, wave and turbulence measurements.
Deployment
Teams of all sizes can successfully deploy the Signature1000 thanks to its small size (21.2cm height), as well as dependable buoy and bottom frame solutions from Nortek and leading industry partners tailored for the instrument. Optional AHRS updated at the same rate as sampling improves motion correction during vehicle and buoy-mounted measurements.
Data
Ethernet and optional serial data communications makes retrieval of data quick and easy, including post-recovery download or real-time applications. Ocean Contour is a powerful postprocessing software created specifically for the AD2CP platform.
Maximum profiling range1) |
25 m (burst mode), 30 m (average mode) |
Cell size |
0.2-2 m |
Minimum blanking |
0.1 m |
Maximum number of cells |
256 (burst)/200 (average) |
Velocity range (along beam) |
User-selectable 2.5 or 5.0 m/s |
Minimum accuracy |
0.3% of measured value ± 0.3 cm/s |
Velocity precision |
Broadband processing, consult instrument software |
Velocity resolution |
0.1 cm/s |
Max sampling rate |
16 Hz (8 Hz using 5 beams) |
Velocity range |
3 cm/s - 1.4 m/s |
Cell size |
2-25 cm |
Profiling range |
10 cm - 8 m |
Range velocity limitations |
Product of profiling range and velocity should not exceed 3.0 m2/s. |
Single |
Burst or average |
Concurrent |
Burst and average |
Alternate |
Single and/or concurrent |
Sampling |
Same as velocity |
Resolution/ dynamic range |
0.5 dB / 70 dB |
Transducer acoustic frequency |
1 MHz |
Number of beams |
5; 4 slanted at 25°, 1 vertical |
Beam width |
2.9° |
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 |
AST frequency |
1 MHz |
AST max distance |
34 m |
Maximum wave measurement depth |
30 m |
Height range |
-15 to +15 m |
Accuracy/resolution (Hs) |
< 1% of measured value / 2 cm |
Accuracy/resolution (Dir) |
2° / 0.1° |
Period range |
0.5-50 s |
Cut-off period (Hs) |
5 m depth; 0.6 sec, 20 m depth; 1.1 sec |
Cut-off period (dir) |
5 m depth; 1.5 sec, 20 m depth; 3.1 sec |
Sampling rate (velocity and AST) |
8 Hz |
Parameters |
N/A |
Temperature: |
Thermistor in head (sampled at meas. rate) |
Temp. range |
-4 to +40 °C |
Temp. accuracy/resolution |
0.1 °C/0.01 °C |
Temp. time response |
2 min |
Compass: |
Solid State magnetometer (max 1 Hz samplerate) |
Accuracy/resolution |
2° for tilt < 30°/0.01° |
Tilt: |
Solid State accelerometer (max 1 Hz sample rate) |
Accuracy/resolution |
0.2° for tilt < 30°/0.01° |
Maximum tilt |
Full 3D |
Up or Down |
Automatic detect |
Pressure: |
Piezoresistive (sampled at meas. rate) |
Standard range |
0-100 m (inquire for options) |
Accuracy/precision |
0.1% FS / Better than 0.002% of full scale |
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)*, ± 0.5° (static, ±30°) |
Heading range / resolution |
360°, all axis /0.01° |
Heading accuracy |
± 3° (dynamic)4), ± 2° (static, tilt < 20°) |
Sampling rate |
Same as measurement rate (up to 16 Hz) |
|
Capacity |
16 GB, 64 GB or 128 GB (inquire for larger capacity) |
Data record |
Consult instrument software |
Mode |
Stop when full |
Accuracy |
± 1 min/year |
Clock retention in absence of external power |
1 year. Rechargeable backup battery |
Ethernet |
10/100 Mbits Auto MDI-X, TCP/IP, UDP/IP, HTTP protocols, Fixed IP / DHCP client /Auto IP address assignment, UPnP and Nortek proprietary instrument, discovery over Ethernet |
Serial |
Configurable RS-232/RS-422 300-1250000 bps |
Recorder download baud rate |
20 Mbit/s (Ethernet only) - 1 GB in 6 minutes |
Controller interface |
ASCII command interface over Telnet and serial |
Depending on configuration |
MCBH6F (Ethernet), MCBH8F (serial), MCBH2F-G2 (pwr), optional Souriau M-series metal connector for online use (10M) |
Functions |
Deployment planning, instrument configuration, data retrieval and conversion (for Windows®) |
DC input |
12-48 V DC |
Maximum peak current |
1.5 A |
Max. average consumption at 1 Hz |
8 W at 1 Hz, Ethernet adds 0.75 W |
Typical average consumption |
15 mW |
Sleep consumption |
100 μA, power depending on supply voltage |
Transmit power per beam |
0.3-30 W, adjustable levels |
Ping sequence |
Parallel |
Internal |
90 Wh alkaline |
Duration |
Depending on configuration, consult software |
Operating temperature |
-4 to +40 °C |
Storage temperature |
-20 to +60 °C |
Vibration |
IEC60068-2-64 |
EMC approval |
IEC/EN 61000-6-2, 61000-6-3 |
Depth rating |
300 m (for 4000 m version, contact Nortek for specifications) |
Standard model |
POM with titanium fasteners |
Maximum diameter |
142 mm |
Maximum length with room for internal batteries |
212 mm |
Maximum length without room for internal batteries |
152 mm |
In air, no battery |
2.21 kg (1.9 kg short) |
In water, no battery |
-0.09 kg (0.3 kg short) |
Battery |
0.71 kg |
Signature1000
5-beam head
Standard, with room for internal battery
Short, no room for battery
16 GB SD card data logger
64 GB SD card data logger
Pressure sensor, 0-10 m, 0,1%
Pressure sensor, 0-20 m, 0,1%
Pressure sensor, 0-30 m, 0,1%
Pressure sensor, 0-50 m, 0,1%
Pressure sensor, 0-100 m, 0,1%
Pressure sensor, 0-200m, 0,1%
Pressure sensor, 0-500m, 0,1%
Pressure sensor, 0-500m, 0,1% (Note: instrument depth rating is 300m)
10m Ethernet cable with MCIL6MP, Power/RJ45 at dry end
10-100m Ethernet cable (specify length in comments field) with MCIL6MP-PWR/RJ45
10m Serial RS232 cable, MCIL8MP-DB12
10m Serial RS232 cable, MCIL8MP-DB9 w/RS485 trigger
Serial RS422 cable >10m (specify length in comments field), MCIL8MP-DB9
Online cable, Souriau 10M open ended, (specify length in comments field)
Online cable, Souriau 10M PWR/RJ45, max 100m, (specify length in comments field)
Compass and tilt sensor
AHRS
Cable, 10 m Ethernet cable with 6-pin
Cable, 10 m Serial cable with 8-pin
Cable, 10 m Serial cable with 8-pin w/RS485 trigger
Battery, 18 V - 540 Wh, alkaline
The standard battery for instruments in the Signature series.
Battery, 19 V - 1800 Wh, lithium
An optional high-capacity lithium battery for instruments in the Signature series.
Battery, 15 V - 90 Wh, alkaline
This medium-sized alkaline battery fits in the housing of the standard Signature1000 unit.
Battery canister, aluminium for 36*D pack w/cable to Signature 2-pin Inline (500m rating)
Battery canister, aluminium for 2*36*D pack w/cable to Signature 2-pin Inline (500m rating)
Battery pack, 5-pack, 18 V - 540 Wh, alkaline
The standard battery for instruments in the Signature series.
Battery pack, 10-pack, 18 V - 540 Wh, alkaline
The standard battery for instruments in the Signature series.
Set of Anti-fouling patches for Signature1000
This set is suitable for Signature1000