aerosol sensor Articles

  • Certification - Choosing the Most Suitable Particle Sample Point Locations in the Cleanroom

    Cleanroom certification is based on ISO 14644-1, “Classification of air cleanliness by particle concentration” standards. The specifics of the assessment may vary slightly for FDA or EU GMP regulations, but the underlying methodology is standard. Certification demonstrates that the entire area meets ...


    By Particle Measuring Systems

  • Choosing the Most Suitable Particle Sample Point Locations in the Cleanroom (LS)

    As environmental system designers, we are often asked where to place sample points for particle monitoring, whether it be performed in a pharmaceutical cleanroom or clean device (RABS, isolator, etc.). The answer is not always straightforward. There are several guidance documents that offer advice on what processes need to be monitored, along with advice on suitable distances from the ...


    By Particle Measuring Systems

  • Which Sensor is right for my application?

    The MiniPID 2 Sensor is offered in five models having the guaranteed range of operation below (Isobutylene equivalent). They are insensitive to humidity changes, providing unparalleled performance in a variety of applications: MiniPID 2 PID PPM has a linear dynamic range of 0 – >4000 ppm. MiniPID 2 PID 10.0 eV has a linear dynamic range of 0 – >100 ppm. MiniPID ...


    By Ion Science Ltd.

  • Planetary Boundary Layer: Why Is It Important?

    The famous statistician George Box said “All models are wrong, but some are useful”—for calculating air quality indices and emissions estimates this is certainly true. One way to increase the utility of models is to use up-to-the-minute, local Planetary Boundary Layer (PBL) measurements as an input when generating top-down emissions estimates. Understanding the local PBL should ...

  • Lifesaving weather warnings thanks to professional visibility sensors

    The new Lufft visibility sensor VS20k is now officially available. But what distinguishes it from the previous model and for which applications is it suitable? In the following article, you learn more about the new Lufft visibility sensor family… Reduced visibility – a risk for all traffic users Traffic accidents, flight cancellations and delays: Reduced visibility is ...


    By OTT HydroMet

  • Micro Pulse LiDAR enhances global aviation safety - Case study

    To address the need for better information about volcanic ash events, the Toulouse Volcanic Ash Advisory Center (VAAC) asked Météo-France (MF), the French national meteorological service, to focus on the ash issue. MF set out to determine the best method of providing accurate information about the size and concentration of volcanic particles from the ground up to a minimum of 12 km ...

  • Top 5 Differences Between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers ad the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. To select the best tool ...

  • Micro Pulse LiDAR Enhances Global Aviation Safety - Case Study

    Monitoring Volcanic Ash provides early warnings of Hazardous Atmospheric Conditions Volcanic ash is a recurring impediment to normal air-traffic operations in Europe, Asia and South America due to potential jet engine damage caused by the razor-sharp particles in dense ash plumes. A notable example is the 2010 eruption of the Eyjafjallajökull volcano in Iceland that shut-down air ...

  • Planetary Boundary Layer: Why is it Important?

    The famous statistician George Box said “All models are wrong, but some are useful”—for calculating air quality indices and emissions estimates this is certainly true. One way to increase the utility of models is to use up-to-the-minute, local Planetary Boundary Layer (PBL) measurements as an input when generating top-down emissions estimates. ...

  • Observational needs for four-dimensional air quality characterization

    Surface-based monitoring programs provide the foundation for associating air pollution and causal effects in human health studies, and they support the development of air quality standards and the preparation of emission reduction strategies. While surface-oriented networks remain a key tool for addressing traditional single pollutant human exposure challenges, these networks in isolation are not ...

  • Micro Pulse LiDAR Delivers Accurate PBL

    Comparing the performance of atmospheric transport models to real-life measurements helps researchers isolate problem areas and produce more accurate urban air pollution and greenhouse gas (GHG) emission estimates. As cities and states commit to improving air quality to alleviate concerns about public health and climate change, the need for baseline information and ongoing data collection is ...

  • KNMI purchased 50 units of CHM15k - Case Study

    Long before automated weather stations were available, weather and clouds were already observed visually by officially trained and certified meteorological observers. Today, there are still human observers active in many weather services around the globe. Observers look at the sky and estimate cloud fraction in octa and the height of the cloud base. This provides essential information for ...


    By OTT HydroMet

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. ...

  • Did You Know that GRIMM Measuring Stations are Equipped with Lufft Weather Sensors?

    Do you already know our system partner GRIMM Aerosol Technology? Their aerosol measuring systems are in use all over the world where the focus lies on inorganic and organic aerosols as well as greenhouse gase. In the following article we present you three spectacular applications in the deepest jungle, on a frosty mountain peak and in a busy metropolitan area… About GRIMM Aerosol Technik ...


    By OTT HydroMet

  • Flow-induced errors in airborne in situ measurements of aerosols and clouds

    Abstract. Aerosols and clouds affect atmospheric radiative processes and climate in many complex ways and still pose the largest uncertainty in current estimates of the Earth’s changing energy budget. Airborne in situ sensors such as the Cloud, Aerosol, and Precipitation Spectrometer (CAPS) or other optical spectrometers and optical array probes provide detailed information about the ...

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