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  • Imaging Dilemmas in 180 Hz Magnetic Fields
    While performing an IR scan of substation cable spaces, a thermographer detected an anomaly in the imager display. The problem was most obvious when the imager was near the neutral inductors and cables in the substation. While the thermal imager is exposed to a variety of magnetic fields within
  • Low-Field Magnetic Sensing with GMR Sensors
    Industry continues to reap the benefits of. solid state magnetic field sensing. Every day new. applications are found for solid state magnetic field. sensors due to their small size, low power. And. relatively low cost. The new frontier for these solid. state sensors is very low magnetic fields
  • Electromagnetic Field Measurements in the Near Field
    Electromagnetic Field Measurements in the Near Field. This text examines measuring methods for EMF, electric and magnetic fields, power density, and photonic EMF. The author describes methods that provide accurate data to aid in development of new, improved standards for labor safety and public
  • Low power 3D magnetic sensing
    The new 3D magnetic sensor TLV493D-A1B6 offers accurate three-dimensional sensing with extremely low power consumption in a small six-pin package. With magnetic field detection in the x, y, and z directions, the sensor reliably measures three-dimensional, linear and rotation movements. Applications
  • Ten Easy Things to Do with Magnetic Sensors
    The measurement of magnetic fields for their own sake is a relatively uncommon goal outside the laboratory. It is more typical (in industrial, consumer, and automotive applications, for example) to see a magnetic field used as an indicator of some other phenomenon such as position or speed. Over
  • Coating Thickness Measurement: The Fundamentals
    the surface and the base substrate is measured. Inside the measurement probe is a coil that generates a changing magnetic field. When the probe is placed on the substrate, the magnetic flux density of this field is altered.
  • Current Transformers Provide Accurate, Isolated Measurements (.pdf)
    advantageous to determine the current flowing in a conductor by means of its associated magnetic field. This provides isolation between the measuring equipment and the circuit being measured.
  • A Comparison of the Measured Magnetic Field Strength Using Ampere-Turns (AT) and milliTesla (mT) (.pdf)
    With the advent of the Reed Switch, developed by Bell Labs in the 1940s, it was convenient to measure its operate characteristics using the units of ampere turns. Since the Reed Switch is cylindrical it is easy to make the measurement of its closure, release and contact resistance using a coil

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