Magnetic Fields

Though invisible to the eye, magnetic fields permeate the world around us. These fields pass unaffected through most objects, such as water, rocks, walls, and the human body, and provide valuable information about their origin. At FieldLine, we are building sensors systems that image these fields with higher precision than has ever been done. But, we go beyond simply measuring these fields. We are implementing sophisticated algorithms to extract meaningful information that can be used in a variety of applications:

  • Passive real-time imaging of brain function
  • Security applications
  • Non-destructive testing of materials and infrastructure
  • Brain-computer interface devices


One exciting application is the next-generation of magnetoencephalography (MEG) – a non-invasive brain imaging technology. Through highly sensitive uncooled miniature magnetic field sensors, MEG can advance from static cryogenically-cooled systems to lightweight conformal helmets that allow movement and provide higher resolutions images. With cost-sensitive sensor technology, we envision the day where an MEG system is available in every major hospital.

Contact Us


Magnetic Imaging Systems with small, low-power and highly-sensitive magnetic field sensors can enable new solutions in biomedical imaging, nondestructive testing, nuclear magnetic resonance, navigation, communication, surveillance, and other applications.

Please contact us if you want to find out more about the exciting things we are doing.

Meet the Team

FieldLine founders (left to right) Orang Alem, Svenja Knappe, and Jeramy Hughes