Wave (wave height, wave direction, period) observation and current direction and velocity observation Signature
Signature1000 , Signature500 , Signature250
What if waves and currents could be measured simultaneously at an offshore wind power site? Do you have concerns like this?
The Signature series is an ultrasonic current meter (ADCP) that can simultaneously perform direct measurements of sea surface elevation, measure circular motion current velocity below the sea surface, and obtain current velocity profiles. Using time series analysis and spectral calculations on the acquired data, it is possible to derive various wave parameters, including wave height and wave direction. For water depths exceeding the measurable range for wave measurement, the device can be mounted on a mid-water float for measurement. (*Nortek patented technology) The maximum water depth for wave observation is 150m, making it suitable for surveys at floating offshore wind power sites exceeding 50m in depth. 【Features】 - Direct measurement of sea surface elevation using ultrasonic technology with vertically arranged transducers - Continuous and simultaneous measurement of waves (sea surface elevation, circular motion current velocity) and current velocity profiles (multi-layer current velocity) (Nortek patented technology) - The measurement position of circular motion current velocity can be changed during post-processing (Signature1000/500) *For more details, please download the PDF or contact us.
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basic information
Maximum wave measurement water depth ・Signature1000 30m ・Signature500 60m ・Signature250 150m Other features ・Covers data loss due to wave breaking and other factors using sea surface height measurement with pressure sensors ・Small, lightweight, compact, and energy-efficient ・Transducer protection with anti-biofouling film (approximately over 6 months)
Price information
Please contact us.
Delivery Time
※Please contact us. *Usually around 6 weeks.
Applications/Examples of results
Examples of Use - Wave survey in ports and coastal areas - Design of offshore wind power platforms - Research and studies requiring broad frequency wave spectra - Research on coastal erosion - Design of underwater structures such as breakwaters - Acquisition of wave data for disaster prevention Track Record Numerous wave observation cases both overseas and domestically.
Detailed information
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Wave Observation Signature Series
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Installation image using Signature Bouy
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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.