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7.03.19 7.03.19 10:13

Revealing new talents at Ocean Business Southampton

Categoria: English news
Once again, on April 2019, NKE Instrumentation team will be exhibiting at the Ocean Business show which takes place in Southampton. NKE Team will be presenting its underwater autonomous data loggers; the WiSens range and two of its revolutionary sensors: NOSS and pCO2.

Once again, on April 2019, NKE Instrumentation team will be exhibiting at the Ocean Business show which takes place in Southampton. NKE Team will be presenting its underwater autonomous data loggers; the WiSens range and two of its revolutionary sensors: NOSS and pCO2.

 

Smart underwater loggers’ family

WiSens Family

 NKE Instrumentation presents its latest product evolutions: the most compact Wi-Fi remote data loggers on the market. These autonomous loggers offer a very high ease of use thanks to the Wi-Fi, fully integrated in the WiSens logger using a simple on/off switch.

 

 

The WiSens loggers can measure up to 3 parameters. Among them, pressure is measured by all types of WiSens since they are all equipped with a depth sensor. Temperature is recorded and measured by most of the WiSens over a depth range from 0 to 6000m. Conductivity can also be measured and associated with pressure and temperature, the salinity is deducted by calculation. The WiSens measures and records turbidity, associated with pressure and temperature. There is also a logger able to measure and records temperature and pressure for assessing waves or tides, knowing that the maximum depth immersion for measurement is 40m. And there are more parameters to come!

Furthermore, regarding data, it is stored in FLASH memory and can be retrieved by the user after the unit has been recovered. Connection to the data logger is achieved through a Wi-Fi link that the user can activate using the activating clip supplied. Moreover, the main advantage of this range is the flexible configuration and the recovery of data that do not require dedicated software. The data logger can be fully used from a Web browser such IE, Safari or other with any PC (MAC/Windows), Tablet or Smartphone (Android/IOS).

There are three different start modes you can choose: the manual one; the acquisition will begin as soon as the sensor is disconnected (removed from the docking station). There is the date start mode in which the acquisition will begin on the scheduled date and time. Or you can program the device to start under some defined conditions so the acquisition will begin as soon as the programmed is fulfilled.

Finally, the WiSens loggers are also very practical regarding mechanical characteristics as they are compact, about 25cm long and weigh approximatively 400g.

In addition to the WiSens data loggers, the team will be also exhibiting the accessories specially tailored for these loggers. Among them, the brand new protections designed for fishery activity to make sure the WiSens remains well protected during all manipulation shocks. In addition, some other accessories, such as the activating clip or the mooring clamp, will be shown at Ocean Business. The activating clip is literally used to activate the Wi-Fi and the mooring clamp is made to tie the device on a vertical cable.

 

During the demo on April 9th at 11am in the Student Centre Room 121/114 at Ocean Business exhibition, one of NKE experts will demonstrate how easily you can set up the WiSens data loggers and retrieve data.

 

 

The most accurate salinity and pCO2 concentration sensors in seawater

NKE does more than developing smart underwater autonomous loggers. The company is very concerned about global warming and devotes significant attention to develop products to understand and to take measures against it. The team develops and designs its own sensors for 10 years. These sensors are the most accurate ones in the world.

The introduction in 2010 of the Thermodynamic Equation of Seawater TEOS-10 has represented an important milestone towards the implementation of a global thermodynamic ocean model. An accurate evaluation of the ocean’s role in heat transport and in climate change requires the knowledge of absolute salinity, the traceability of its measurement to the SI becomes crucial and the development of absolute salinity measurement methods and tools becomes essential.

NOSS sensor for NKE Optical Salinity Sensor has emerged as one of the first underwater sensors for in situ refractive index measurement in the past years, opening up the scope of possibilities of direct access to density parameter. It becomes a pioneer for initiating experimental studies on the refractive index/density of seawater with anomalous composition. It has been designed to be integrated on surface buoys, sea bottom observatories and profiling Provor floats (down to 2000m) and it takes advantage of its little size and low power energy.

 

Furthermore, atmospheric CO2 is one of the elements responsible for the greenhouse effect on Earth. The way its concentration evolves has significant consequences on the climate of our planet. Oceans are known to act as both CO2 sinks and sources, and for the essential, though badly quantified, role they play in the evolution of atmospheric CO2. It is critical to better understand and characterize the gas exchange process between the atmosphere and the ocean. The concentration in atmospheric CO2 is relatively well known, and that of the ocean must be accurately measured.

The pCO2 sensor developed by NKE provides very precise autonomous measurements based on a spectrophotometry approach regarding the pCO2 concentration. The sensor is designed to measure the concentration of pCO2 at the surface of the ocean. Therefore the CO2 exchange between atmosphere and ocean can be qualified. This is a kind of re-marinization of the concept in order to be fully compliant regarding the integration on instrumented buoys. The sensor can also be full autonomous and work by itself through a Modbus mode as the sensor includes a seawater pump and a spectrometer and achieves one year of operating autonomy with one measurement every hour served by a power supply.

The product is even more unique as it is very well optimized to be integrated on different kind of buoys. Given the great space and time variability of dissolved CO2 at the surface of the ocean, an experimental approach aimed at acquiring series of measurements can be adopted using drifting platforms, such as the CARIOCA buoy or PIRATE networks, in order to complement the data acquired with ships and anchored buoys.

A presentation about the NOSS and the pCO2 sensors will take place in Southampton during Ocean Business on Wednesday 10th April, and will be presented by Luc Simon, Sales manager at NKE Instrumentation. The session will be held at 3pm in Student Centre Room 121/11.

 

The team is looking forward to meeting you Booth #G9 at Ocean Business to tell you more about the latest product evolutions. All training and demonstration sessions are free to attend – all you need to do is register to attend the show. If you need to, it is also possible to schedule an appointment with one of NKE experts during the exhibition; please send an email to info.instrumentation@remove-this.nke.fr

 

 

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