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Wave Measurement
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Datawell Waverider Mk3 System
Datawell Waverider Mk3 System
The Directional Waverider hardly needs any introduction: it is the world’s standard for measuring wave height and wave direction. Its success is due to the proprietary well-proven and accurate Datawell stabilized platform sensor, enabling wave height measurements by a single accelerometer. For the wave direction, direct pitch and roll measurements are performed needing no integration. In combination with horizontal accelerometers and a compass this forms the complete sensor unit, the heart of the instrument.
- Real time measurement of wave height with half hourly heave and directional spectra updates.
- HF link up to 50 km over sea. The proprietary Datawell HF link module is easy replaceable if a different transmission frequency is required.
- LED flash light integrated in the top of the antenna increasing the buoy’s visibility.
- GPS receiver for buoy positioning has now become a standard feature of the DWR-MkIII, and facilitates its retrieval.
- Integrated data logger based on the latest flash card technology.
- A water temperature sensor in the mooring eye providing sea surface temperature
- High capacity primary cells operating reliably and safely under all wave conditions and weather circumstances for up to three years without replacement.
- Built-in energy meter reports an accurate estimation of the remaining operating life.
RX – C Receiver
The RX-C is a dedicated HF link receiver that supports all Datawell Waverider buoys fitted with the standard HF transmitter.
In the RX-C, a programmable digital frequency synthesizer makes it possible to manually select the reception frequency in 100 Hz steps.
This allows reception of any frequency between 25.5 and 35.5 MHz by the touch of a button.
RX – D Receiver
The RX-D is a dedicated HF link receiver that supports all Datawell Waverider buoys fitted with the standard HF transmitter.
The RX-D is tuned to a single frequency by a crystal. The crystal can be custom made to allow reception of any frequency between 25.5 and 35.5 MHz. The receiver is normally tuned at the factory but can be retuned later by Datawell to allow reception of other frequencies.
The RX-D is especially designed for single buoy applications or for use on fixed receiving locations where the reception frequency does not have to be changed often.
DeepSea Power & Light SeaBattery & Charger
DeepSea Power & Light SeaBattery & Charger
The High-Current SeaBattery takes the already versatile SeaBattery to the next level by allowing users to draw up to 100 amps. The power module is a pressure-compensated submersible battery pack designed to perform at any depth, even the high pressure, low temperature environment of deep ocean trenches. Routine deployments to 6,000 meters as part of sea floor instruments and towed camera sleds have proven the SeaBattery power module to be both reliable and robust in the most demanding of subsea applications.
DeepSea Power & Light SeaBattery
- Ocean trench rated
- Excellent capacity retention
- Operates even if inverted
- Available in 6v, 12v, 24v or 48v configurations
- Pressure test certification available
DeepSea Power & Light Charger
- Fully Automatic Operation
- Three-Stage Plus Control
- Safety Override Timer
- External Temperature Compensation
- Found on back of unit
- Electronic Current Limit Protection
- Unique Desulfation Circuit
- Short Circuit Shutdown
- Voltage Limited
- Provides DC Power While Charging
- Digital Microprocessor Control
- Battery Type Switch
- Proportional Timing
- Timed CV Stage 80% Returned
- Green Ready Lamp
- Flashing = Fault
- Modular Construction
- Powder-Coated Finish
- Low Voltage Start Circuit
- Will recharge overdischarged batteries from as low as 400 mV.
- Sample and Hold Circuit
- Eliminates voltage sensing errors and prevents parasitic discharge during AC power loss.
- Electronic Short Circuit & Reverse Polarity Shutdown
- Without blowing fuses; an exceptional safety feature.
- Built-in Electronic Timer
- Monitors the time taken from start of charge until the battery
voltage reaches the first preset voltage limit. The time duration for the second stage is automatically calculated in proportion to the time taken for the first stage. Specifically designed to optimize charging on a wide range of battery types, ages and sizes. - Customer-Preferred LED Amp Gauge
- Indicates the current output without fragile, moving meters or energy loss. A green, ready light indicates that the battery is ready for use or will flash if there is an override timeout.
Power & Light Charger
MajorCharge Pro Battery Chargers can be used to recharge virtually any type of battery, including conventional liquid electrolyte, maintenance-free absorbed electrolyte, deep-cycle, and gelled type batteries. The MajorCharge Pro features patented three-stage constant current, constant voltage charging format.
A constant current bulk charge MajorCharge Pro applies to achieve the fastest possible return of energy to the battery. This constant voltage stage is proportionally timed and temperature compensated, minimizing electrolyte breakdown and gas emission.
The final standby float charge stage will replace standing losses and keep the battery in a fully charged state & “Ready” mode. As soon as the battery is connected, a desulfation circuit encourages the breakdown of large sulfate crystals which can develop during prolonged periods of deep discharge.
Miros Wave & Current Radar
The SM-050 Wave and Current Radar is a unique high-performance remote sensor for measurement of directional wave spectra and surface current. It is the only sensor which utilizes dual-footprint pulse Doppler method for wave measurements, and microwave dual frequency method for measuring surface currents.
The sensor provides excellent quality wave-spectrum and -parameter data. The accuracy of which has been verified in a number of independent comparisons.
The SM-050 enables data to be easily and securely accessible both locally and remotely by utilizing modern IoT technologies.
The sensor has proved its ruggedness and reliability through years of service in extreme weather conditions, including heavy precipitation, all over the world.
- Embedded data processing and WEB-server
- Easy data access, locally and remotely
- No parts submerged in water
- High reliability
- Low maintenance cost
- For fixed and floating installation
Miros WaveFinder
The new SM-140 WaveFinderTM is purpose made for accurate wave-measurements from vessels and floating installations. It is based on the SM-140 RangeFinder and its market-leading range and accuracy specifications, complemented with an integral high-precision motion reference unit.
- Embedded data processing and browser-based user interface
- IoT enabled for easy data access, locally and remotely
- Easy to install
- No parts submerged in water
- Low maintenance cost
The 5° narrow-beam antenna gives a small footprint on the sea surface, enabling the sensor to measure shorter wave-periods from a longer distance than sensors with 10° antennas. Wave variables are calculated both from timeseries data and from the wave spectrum. The sensor is available in an Ex approved version.
The SM-140 WaveFinder is a stand-alone sensor with embedded processing and storage, enabling data to be easily and securely accessible both locally and remotely by utilizing modern IoT technologies.
It is compact and easy to install. Only a network connection and power are required. The narrow beam antenna enables a more flexible installation alongside the hull.
The sensor has proved its ruggedness and reliability through many years of service in extreme weather conditions, all over the world.
Miros WaveSystem
Our WaveSystems are designed to provide accurate wave, current and draught data for weather critical marine operations. The system also provides real time positive or negative draught, depending on whether the hull is partly below or above the water line.
The system provides data both during transit and when stationary, utilizing the higher accuracy data provided by the RangeFinder or WaveFinder when possible, typically below 4 knots. These sensors also provide measured Hmax calculated from the time series.
As Miros sensors are completely dry, with no parts submerged into water, they benefit from much more efficient and simpler installation and maintenance procedures compared to wave buoys.
- Real-time sea state and draught monitoring
- Directional wave and surface current data
- Data export to third party systems
- No parts submerged in water
- Low maintenance costs
Miros WaveWeather
The compact and easy to install Miros WaveWeather is designed to deliver accurate, real-time measurements of the local sea and weather conditions to any user on any device.
- Real-time monitoring of wave, water level and weather data
- Easy data access anywhere
- No parts submerged in water
- Low maintenance cost
The system comprises a Miros RangeFinder and a Vaisala Weather Transmitter. The compact Weather Transmitter provides wind, temperature, humidity and pressure data utilizing the unique Vaisala solid state technology. The RangeFinder accurately measures the vertical distance to the sea-surface, undisturbed by fog, rain or water-spray. The sensor provides accurate air-gap, and calculated water level and draught data where averaging periods and reference points are configurable. Wave variables are calculated both from the wave spectrum and from timeseries.
Data is integrated into the Miros Cloud, making it immediately accessibility anywhere, without the need for any external processing. Miros Cloud enables easy integration with tidal tables, weather forecasts and other relevant data sources.
The sensors have proved their ruggedness and reliability through many years of service in extreme weather conditions, all over the world.
Miros Wavex
Wavex® captures and processes sea surface backscatter data from a standard X-band marine navigation radar. Through robust, accurate and adaptive algorithms it calculates directional wave, surface current and speed through water (STW) data. Measurements are made in a relevant area of the waterbody, unaffected by the vessel itself.
Wavex now provides easy and secure data access, both locally and remotely, by utilising modern IoT technologies – view and analyse real-time and historical data anytime, anywhere, on any device.
- Real-time directional wave measurements
- Real-time surface current measurements
- Real-time STW measurements
- Operates at any ship speed
- No calibration required
- No parts submerged in water
- Low maintenance costs
- Integrates with third-party systems
- IoT-enabled & Cloud-integrated
- Access data locally & remotely
OceanWise Port-Log System
OceanWise Port-Log System
Port-Log System is a complete storage and publishing solution for environmental data acquired by different monitoring techniques and sensors.
Port-Log delivers environmental data from anywhere to anyone.
Port-Log allows your data to be viewed, downloaded, shared and disseminated by range of different users with varying access and security rights. Data is decoded, stored safely and provided in comprehensive web displays providing immediate and interactive access to your data.
Port-Log can be delivered as either a cloud based or installed system. Totally instrument independent, it is robust and flexible and recognises data inputs from a wide range of different sensors.
The display can be tailored to your requirements and there are several connectivity extensions available which allow data sharing to recipients unable to access the standard web pages including; remote vessels or devices, third-parties, external or internal software and applications.
- Off-the-shelf real time capability
- Cloud-Based OR installed on your own servers
- Easily share, view, disseminate and publish your data
- Easy-to-use web-based display system
- Foundation for environmental data management across your business
OceanWise Smart Telemetry Modem
Port-Log.net is a quick and easy on-line storage and publishing solution for environmental data acquired by different monitoring techniques and sensors.
The ip.buffer range of smart telemetry units offer powerful and cost-effective solutions for the collection and transmissions of metocean data. The units are manufactured by leading telecommunications technology provider Scannex, and specially adapted by marine data experts OceanWise to meet the requirement of the most demanding marine environments.
“We are extremely happy with the performance of the ip.buffer. We are not aware of any other modem being able to preform to this standard”. Dr M Osborne, OceanWise.
- Smart telemetry with reliability built in
- Fail-safe and dependable
- Multi-sensor data on any device
- Delivers real-time information
Valeport VRS-20 Radar Level Sensor
The VRS-20 is a pulsed k-band radar level sensor developed by Valeport to work seamlessly with the TideMaster tide logger, operate standalone with optional integrated GPRS telemetry or interface to a third party data logger.
Versatile and simple to install, the VRS-20 addresses a number of the issues traditionally associated with water level measurement. Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.