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Magnetic metal detection

Tri-axis magnetic sensor, AK09940 is the most suitable sensor for measuring the minimum magnetic field in the nano-tesla range.

It can detect very small magnetic fields such as those generated by weak magnetic materials and the Villari phenomenon (reverse magnetostriction effect). The AK09940 is possible to detect a magnetic metal contamination and minute metal pieces at high speed. It also contributes to high accuracy and downsizing of inspection equipment, metal detectors.

Tri-axis Magnetic Sensors


What is this Demo?

  • Smallness metal (staple)
  • It's difficult to detect
  • But this Demo kit can easily detect !


How to detect?

  • Generates ACMagnetic field
  • When user move metal closer to coil,
  • It generates ultraweak magnetic field
  • Sensor detects this magnetic field change
  • AK09940 use TMR element
  • It can detect "nT" order 3D magnetic field


What application is it?

  • Detect a stapled booklet
  • Nopaper feed error by staple
  • Detect a metal in the food
  • Novisual check
  • Detect a dangerous goods like knife
  • For security gate of airport etc...


Detail of Demo kit

  • Sensor x 24pcs
  • Alert Lamp
  • Calibration switch
  • Ready to set
  • Sliding the paper...
  • Detection!
  • Try to use for various application!


For more detailed information about each product series, and for selection of specific products, please click below links.