Difference between revisions of "MHK ISDB/Instruments/Nortek Signature"

From Open Energy Information
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|Application=Coastal environment: bottom mounted on a well-mixed tidal channels. River: down looking on a drifter buoy. Instrument in broadband Mode. Measure velocities in along beam coordinates using all 5 beams at 8 Hz with 1 m bin size. Also in drifting mode we uses the 5th beam for bottom tracking at 4Hz and at the same time use other 4 beams to measure velocity also at 4 Hz.  
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|Application=Coastal environment: bottom mounted on a well-mixed tidal channels. River: down looking on a drifter buoy. Instrument in broadband Mode. Measure velocities in along beam coordinates using all 5 beams at 8 Hz with 1 m bin size. Also in drifting mode we uses the 5th beam for bottom tracking at 4Hz and at the same time use other 4 beams to measure velocity also at 4 Hz.
 
|Pros=Very low noise in measurements. Ability to capture small length scales of turbulence. We are able to observe the TKE energy cascade with a simple spectra calculation. High frequency allows for drifting approach in a fast current. Measurements are fantastic.
 
|Pros=Very low noise in measurements. Ability to capture small length scales of turbulence. We are able to observe the TKE energy cascade with a simple spectra calculation. High frequency allows for drifting approach in a fast current. Measurements are fantastic.
 
|Cons=At the time we used the instrument, the battery estimations were not right. The battery lasted less time than expected, resulting in shorter measurement ensembles (Set up for 3 days of high frequency measurements, but only got 1 day of good ensembles)
 
|Cons=At the time we used the instrument, the battery estimations were not right. The battery lasted less time than expected, resulting in shorter measurement ensembles (Set up for 3 days of high frequency measurements, but only got 1 day of good ensembles)

Latest revision as of 15:11, 21 June 2016

Nortek Signature

Manufacturer: NortekUSA
Measurement Category: Oceanographic
Operating Environment: Underwater
Version(s): 500 Sensor Frequency (Range): 500 kHz (70 m profile range), 1000 Sensor Frequency (Range): 1.0 MHz (30 m profile range)
Mounting: Upward Looking, Downward Looking;
Communication Protocol: Ethernet, Internal Logging, RS-232, RS-422
Operating Mode: Free Streaming, Stand Alone
Power Supply Type: Battery, VDC
Power Specification: 12-48 VDC, Consumption dependant on application settings



Description

The Signature 1000 and 500 are built on the entirely new AD2CP platform, Signature1000 and Signature500 are designed for unprecedented performance in high energy turbulent environments (faster sampling), while also giving users the freedom to employ two measurement schemes at one time.


Instrument Measurements

  • 3D Velocity Profile (Current)
  • Thickness (Ice)
  • Pressure (Water)
  • Temperature (Water)
  • Directional Spectra (Wave)
  • Non-Directional Spectra (Wave)
  • Wave Height (Wave)
  • Wave Statistics (Wave)

Measurement Specifications
See spec sheet for additonal sensor details.


Optional Sensors

No optional sensors provided. Please add sensors.


Notes, Considerations & Recommendations

Data conversion to ASCII and MatLab format. Call for quote and additional information.


User Experience

Contribute your experience








 
Nortek Signature: User Experience Report


 
Nortek Signature: User Experience Report