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  2. Wheel speed sensor - Wikipedia

    en.wikipedia.org/wiki/Wheel_speed_sensor

    The most common wheel speed sensor system consists of a ferromagnetic toothed reluctor ring and a sensor (which can be passive or active). The tone wheel is typically made of steel and may be an open-air design, or sealed (as in the case of unitized bearing assemblies). The number of teeth is chosen as a trade-off between low-speed sensing ...

  3. Hall effect sensor - Wikipedia

    en.wikipedia.org/wiki/Hall_effect_sensor

    Hall effect magnetometers (also called tesla meters or gauss meters) use a Hall probe [23] with a Hall element to measure magnetic fields or inspect materials (such as tubing or pipelines) using the principles of magnetic flux leakage. A Hall probe is a device that uses a calibrated Hall effect sensor to directly measure the strength of a ...

  4. Unattended ground sensor - Wikipedia

    en.wikipedia.org/wiki/Unattended_ground_sensor

    It includes sensors with embedded processing, GPS, and radio communication. Those sensors are based on seismic-acoustic detection, passive infrared, electro-optical and magnetic detection techniques. Flexnet is used by Swedish Armed Forces, [10] Royal Netherlands Army, [11] Belgian Army [12] among other countries.

  5. Magnetometer - Wikipedia

    en.wikipedia.org/wiki/Magnetometer

    Magnetometers can be used as metal detectors: they can detect only magnetic metals, but can detect such metals at a much greater distance than conventional metal detectors, which rely on conductivity. Magnetometers are capable of detecting large objects, such as cars, at over 10 metres (33 ft), while a conventional metal detector's range is ...

  6. Doppler on Wheels - Wikipedia

    en.wikipedia.org/wiki/Doppler_on_Wheels

    Doppler on Wheels (or DOW) is a fleet of X-band and C-band mobile and quickly-deployable truck-borne radars which are the core instrumentation of the Flexible Array of Radars and Mesonets [1] affiliated with the University of Alabama Huntsville [2] and led by Joshua Wurman, with the funding partially provided by the National Science Foundation ...

  7. Earth's magnetic North Pole is shifting toward Russia. What ...

    www.aol.com/news/earths-magnetic-north-pole...

    Compass needles in the Northern Hemisphere point toward the magnetic North Pole, although the exact location of it changes from time to time as the contours of Earth’s magnetic field also change.

  8. Husky VMMD - Wikipedia

    en.wikipedia.org/wiki/Husky_VMMD

    Modern single-occupant Husky model. The platform is integrated with pulse induction metal detector panels and overpass tires that enable operators to regulate tire air pressure in order to reduce the risk of initiating land mines without causing detonation. The Mk III, like other Husky models, is engineered in a modular, frangible configuration.

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