Rubidium Vapor Key to Mini MagnetometerMarch 1, 2005 By: Stephanie vL Henkel, Sensors Sensors
NIST researchers have built and demonstrated a magnetometer about the size of a rice grain and capable of detecting magnetic field changes down to 50 pT. When packaged with its associated electronics, the sensor, which can run off a battery, is expected to measure ~1 cc. It can be fabricated and assembled on semiconductor wafers using existing techniques for making microelectronics and microelectromechanical systems.
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