Water Sampling with UAVs

Sampling in watercourses is an activity that today isn’t easy, but very important. You need to bring a boat on bad forest roads and spend a lot of time on logistics. It is not only hard and time-consuming to perform, but also expensive. Sparv Embedded is part of a team to come up with a UAV-based solution to make these samplings easier, faster and cheaper. We use the flexible sensor system Sparvio and contribute our knowledge from working on UAV sensor solutions over the past few years. The pictures are from a demo performed on May 14th in Västervik, Sweden. At the demo, we flew a quadcopter over a lake, descending twice to allow the hanging payload to collect water samples at two different points. The samples can then be analyzed as usual in a lab.

In the next step, we will also directly measure temperature, pH, conductivity and most importantly oxygen levels. The data will be visible in real-time to the operator, allowing on-the-spot exploration of variations in water quality. This would be useful to map plumes of emissions, for example in case of chemical spills. Where a deviation is discovered, the drone could take a water sample for further analysis.2019-05-22 Picture from Anders Persson - Cut Demo Västervik DCS Vinnova-17

 

 

 

 

 

NO2 sensor design with KNMI

Rijkswaterstaat-Ministry-of-Infrastructure-and-Water-Management

We have had the pleasure to be visited by KNMI (Royal Netherlands Meteorological Institute) representatives this week for a workshop on developing their novel NO2 sensor. We had a very productive workshop on practical design, measurement principles, project planning and also touching on eventual business ventures.

NO2 (Nitrogen dioxide) has a strong negative health effect. Due to a degradation time measured in minutes or hours and the low background levels, NO2 is a clear indicator of nearby pollution. The gas is almost exclusively produced from combustion, making the sources easy to pinpoint. This makes sampling NO2 suitable to make detailed maps of urban pollution.

With a resolution around 1 ppb and response time 1 second, the KNMI NO2 sensor has a unique level of performance considering the weight and price. Once fully developed, this will enable mobile measurements of this important gas.

Summer holiday

We will be on holiday between Monday July 11th and Friday July 29th.

You are welcome to continue contacting us at info@sparvembedded.com, but we can’t give you our usual, fast response time.

Have a nice summer!