{"id":1011898,"date":"2016-04-11T00:00:46","date_gmt":"2016-04-10T22:00:46","guid":{"rendered":"http:\/\/blog.lufft.com\/en\/?p=11898"},"modified":"2017-09-20T08:29:50","modified_gmt":"2017-09-20T06:29:50","slug":"the-invisible-fine-dust-measurement-sensor","status":"publish","type":"post","link":"https:\/\/blog.otthydromet.com\/en\/the-invisible-fine-dust-measurement-sensor\/","title":{"rendered":"The invisible fine dust"},"content":{"rendered":"

Mobile measurement of fine dust with the help of our mobile weather sensor MARWIS? This becomes true with the help of the FDS 15 fine dust sensor from the company F\u00f6disch AG! With this combination you can solve the problems of fine dust calculation in microclimatic conditions! More to read in this guest article from the company F\u00f6disch AG…<\/p>\n

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Air is lifeblood. Daily we inhale approximately 15.000 liter. Still, the air contains invisible pollutants, which vary in its composition and concentration depending on the location. Especially the respirable particles with a diameter of less than 2.5 \u00b5m (PM 2.5) were considered to be particularly dangerous.
\nAccording to a current study conducted by the Max Planck Society, worldwide 3.3 million people annually die prematurely due-to consequences of air pollution. In the European Union, the exposure with fine dust and ozone causes up to 180 000 deaths each year, of which alone 35 000 die in Germany. (Source<\/a>) Various examinations have proven that dust polluted air indoor and outdoor damage the heart, lungs and brain resulting in an increased infarction and stroke risk and rising attacks of asthma. At the latest since the Volkswagen emission scandal and the fine dust alert in Stuttgart, the topic gained presence. It is a fact that the emission of fine dust and nitrogen oxide in exhaust gases is not entirely caused by road transport vehicles. Not only in Stuttgart, but also in other areas in Europe the particulate matter concentrations are too high. Also tyre abrasion on the roadway as well as aviation and railway related PM2.5 emissions contribute to a rising fine dust concentration in the environment. The promotion of small-scale firing plants in recent years intensified the problem and demonstrates nowadays its full impact. Biomass power plants and industrial incinerations were the main emitters of fine dust particles.
\nEuropean emission limits and emission guidelines should control the respirable dust pollution. Since 2015 exist a limit value of 25 \u00b5g\/m\u00b3 in the annual average throughout Europe. This value will be reduced in 2020 to 20 \u00b5g\/m\u00b3. The conformation of the limitation values were controlled by 170 regulatory measuring stations of the Federal Environment Agency in Germany. According to their results, the fine dust pollution has diminished over the last few years at both national and regional level, but the trend stagnated since 2013. (Source<\/a>)
\nComprehensible to everyone is that fine dust pollution rises in urban and suburban spaces, whereas in rural areas the values decrease.
\nTo combat causes is more difficult than the responsible persons thought.<\/p>\n


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No matter what the weather is like: The fine dust measurement fits<\/strong><\/h3>\n

Weather-related influences adversely affect the measurement. Regulatory measuring stations, as required to gain reliable measuring values, are technically sophisticated and cost-intensive. Currently six regulatory measuring stations in Stuttgart were installed.<\/p>\n\n

Through the compact fine dust sensor FDS 15 from Dr. F\u00f6disch Umweltmesstechnik AG, a smart fine dust measuring instrument enters now the market that determines the fine dust concentration (PM2.5) in a similar way. Previous trials in Germany and China correspond well to the regulatory measuring stations. Every two seconds, a measuring signal is transmitted to the receiver. Depending on the customers\u2019 requirements the determined values can be averaged over minutes or hours. Due to the continuous measuring principle, the values contain a high level of information density and have therefore also a great expressiveness.<\/p>\n

Moreover, through the WLAN-capability and the connection of several sensors, it can be defined precisely, where and when the fine dust pollution comes from. This is shown by the evaluation of our test results.<\/p>\n

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Measuring principle<\/strong><\/h3>\n

Two optical sensors form the centerpieces of the FDS 15, which determine the dust content on basis of the scattered light method.
\nThe sucked air is preheated to 50 \u00b0C and maintained constantly on this level. In this context, it doesn\u00b4t matter what the weather is like or which measuring location is selected. Via an integrated fan, flow enforcement takes place and guarantees air exchange. With the establishment and design, we\u00b4ve putting emphasis on compactness.<\/p>\n

\"technical-principle-fds15\"<\/p>\n

If you would like to get more technical details, you can download the technical datasheet here<\/strong><\/a>.<\/p>\n

One fine dust sensor, various application possibilities<\/strong><\/h3>\n

This device is applicable to stationary or mobile use to control air quality both indoor and outdoor, which plays an important role in workplace air quality monitoring for instance in factory halls. The FDS 15 can also be integrated in urban agglomerations e.g. on street poles or transport hubs. Airports, public buildings and industrial areas were also addressees.
\nThe fine dust sensor FDS 15 can be used very versatile for example:<\/p>\n