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  • Mechanical vs. Ultrasonic Anemometers for Wind Turbine Control
    The following part of a recent analysis shows that the replacement of mechanical wind sensors trough ultrasonic anemometers in wind turbine control pays off after less than two years already...
  • Lufft VENTUS Ultrasonic Wind Sensor Proven for Offshore Operation
    The Lufft Ultrasonic Anemometer VENTUS-UMB successfully completed the test at the International Technical Inspection Agency TUEV SUED and now has the Protection Class IP68. This confirms officially that the sensor is one of a few Ultrasonic Anemometers, protected from infiltration of dust as well
  • Mechanical vs. Ultrasonic Wind Sensors - a Cost Benefit Analysis
    The following part of a recent analysis shows that the replacement of mechanical wind sensors trough ultrasonic anemometers in wind turbine control pays off after less than two years already...
  • What are the Advantages of Ultrasonic Wind Sensors?
    Whether mechanical, ultrasonic or laser wind measurements: all measuring methods have technical limits. While for mechanical wind sensors the measuring element - cups and vanes - itself predominantly produces a disturbance in the flow field, for ultrasonic anemometers a disturbance can be caused
  • Measuring Air Flow
    Building Automation Systems are often required to measure the actual air flow in air handling systems. Although there are many ways to measure air flow, the two most commonly used with BAS systems are the hot wire anemometer and various devices which measure the velocity pressure of the air. Once
  • Improving Wind-turbine Performance With PLCs
    Most turbines use mechanical anemometers and wind vanes to measure conditions at a wind farm. Data collected, including the wind speed and direction, is then sent to the turbine controllers, which help optimize the blades for maximum wind generation. However, there is often inherent vulnerability
  • The Components of a Digital Flow Meter
    Digital flow meters are high-tech devices with a customizable, touch screen interface. They're used for gauging and displaying qualities like mass flow rate, volumetric flow rate, gas temperature, atmospheric pressure, and gas pressure. The components of a digital flow meter-anemometers
  • Advances in Thermal Dispersion: Mass Flow Meter Accuracy (.pdf)
    Thermal flow measuring technology has come a long way since the introduction of thermocouple technology and early hot wire anemometers. Thermal technologies depend on heat transfer and traditionally operate on differential temperature measurements between two temperature sensitive materials
  • LDE/LME Series - superior immunity to dust
    In this application note LDE/LME differential pressure sensors from First Sensor are experimentally compared to other sensors which use the same (thermal-anemometer-based, non-membrane) sensing principle, where differential pressure is inferred from a gas flow through the sensor. With dust
  • LDE/LME Series - superior immunity to humidity
    In this application note LDE/LME differential pressure sensors from First Sensor are experimentally compared to other sensors which use the same (thermal-anemometer-based, non-membrane) sensing principle, where differential pressure is inferred from a gas flow through the sensor. In high-humidity
  • Advances in Thermal Dispersion Mass Flow Meter Accuracy (.pdf)
    Thermal flow measuring technology has come a long way since the introduction of thermocouple technology and early hot wire anemometers. Thermal technologies depend on heat transfer and traditionally operate on differential temperature measurements between two temperature sensitive materials

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