This ultra-compact DVL plays a significant role in underwater autonomous navigation, station-keeping, and position information acquisition for small ROVs/AUVs/underwater drones!
Ideal for those looking for small Doppler velocity logs, ground and water speedometers, underwater sensors, etc. → Want to automate ROVs (for those considering inspections of offshore structures, etc.) → Want to achieve underwater positioning for ROVs and accurately grasp underwater location information! → Want to maintain a certain distance from the seabed, dam walls, underwater structures, etc. → Considering the effective use of a Doppler velocity log (DVL) for installation, but... - Limited installation space - Wiring and calibration work with DVL and attitude control sensors is cumbersome. - Want to measure both ground speed and water speed. - Want to accurately grasp attitude using AHRS. - Want environmental data (water temperature, current direction and speed meter (ADCP function), pressure). - Want a simple and accurate small DVL unit! - (Also want to keep costs down if possible...) < This is convenient! Vehicle-mounted support features > - For Python - For BlueOS (for BlueROV2) - For ROS2 (Robot Operating System 2) Dedicated drivers are available. Released in 2022! Increasing domestic installation achievements! INS function license to be added from 2024!
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basic information
[Dimensions] Diameter 90 mm / Height 42 mm (47 mm)* [Weight] 300 m pressure resistance: Air 0.535 kg / Water 0.295 kg (Air 0.690 kg / Water 0.415 kg)* [Acoustic Frequency] 1 MHz [Measurable Height Minimum/Maximum] 0.05 m / 50 m [Ground Speed Long-term Accuracy] <±0.3% [Speed Resolution] 0.01 mm/s [Number of Installed Transducers] 4 (3 in tilt direction, 1 in vertical direction) [Built-in Sensors, Functions] Ground speed and water speed (DVL function) Altitude measurement (using vertical transducer, distance calibrated) Attitude measurement (AHRS sensor for orientation, tilt, acceleration, gyro, calibrated) Water temperature measurement (water thermometer) Pressure measurement (pressure gauge) Current direction and velocity profile (ADCP function, standard equipped!) [Pressure Resistance] 300 m, 1000 m* (scheduled for release in January 2025) [Communication] RS422/Ethernet (using a combined connector and one cable) [Pressure Vessel Material] Made of titanium [Other Features] Capable of acoustic transmission in air (no heat generation) *Specifications for the 1000 m pressure resistance version
Price range
P5
Delivery Time
Applications/Examples of results
Used as an underwater navigation unit including Doppler Velocity Log (DVL) for small and micro underwater robots such as AUVs and ROVs (underwater drones). This device primarily acquires ground speed, water speed, altitude, attitude, pressure, and water temperature, contributing to improved underwater navigation accuracy (underwater positioning and station keeping) for small and micro underwater AUVs/ROVs. Officially adopted by various AUV/ROV manufacturers. <Applications> Small underwater robots (ROV/underwater drones/AUV) - Station keeping operations - Autonomous navigation (self-driving), AUV conversion - Maintaining a fixed distance from underwater structures (offshore wind power, etc.), bridge piers, and dam walls - Current direction and velocity observation - Conducting flow condition observations for safety confirmation before underwater operations USV, USV - Current direction and velocity observation - Conducting flow condition observations for safety confirmation before underwater operations - Serving as a position assist sensor when GPS data is lacking <Domestic Achievements> Universities, private companies, research institutions
Detailed information
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Image and description of the Nucleus installation.
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An image of the Nucleus connected to a PC.
Line up（2）
| Model number | overview |
|---|---|
| Nucleus1000 | Ground speed: Long-term accuracy ±0.3%, pressure resistance: Equivalent to a water depth of 300m |
| Nucleus1000 [High Depth Version] | Ground speed: Long-term accuracy ±0.3%, pressure resistance: Equivalent to a water depth of 1000m |
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Company information
Nortek Japan LLC (Nortek Japan) is the Japanese subsidiary of Nortek AS (headquartered in Oslo, Norway), which manufactures ultrasonic Doppler sensors. We handle the domestic sales of the flow direction and velocity meters, wave meters, and DVL (underwater navigation sensors) produced by the company. Additionally, Nortek Japan offers regular inspections of the products sold (including operational verification work, issuance of inspection reports, and replacement of consumables). Since the work is carried out domestically, we can shorten the return period and reduce overseas transportation costs*. Nortek's products have over 20 years of domestic sales experience and are utilized by environmental survey companies and research institutions both domestically and internationally for research and investigation purposes. Services offered by Nortek Japan LLC: - Product sales - Regular inspections (conducted domestically, including issuance of inspection reports and replacement of consumables) - Sales of various consumable parts, including drive batteries - Various repair services* - Technical support and usage suggestions *For repairs, inspections, and sensor calibration work that require precise inspection equipment, the work will be carried out at the headquarters factory in Norway.