Glossary

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Electromagnetic Actuation(also: EM Actuation)

A method of producing physical movement using electromagnetic fields generated by electric coils. In accessibility contexts, electromagnetic actuation is used to move tactile elements — such as magnetic markers or braille pins — to create dynamic tactile displays and interfaces…

Electromagnetic Tracking(also: Magnetic Tracking, 6-DOF Tracking)

Electromagnetic tracking is a position and orientation sensing technology that uses electromagnetic fields to determine the location and rotation of a sensor in three-dimensional space. Systems like the Polhemus tracker generate a low-frequency magnetic field from a stationary…

Embedded System(also: Embedded Device, Embedded Computer)

A specialised computer system designed to perform a dedicated function within a larger device, typically operating with real-time constraints and limited resources. Unlike general-purpose computers, embedded systems are built into the products they control. In assistive…

Embosser(also: Braille Embosser, Tactile Graphics Embosser)

A device that creates raised (embossed) output on paper or other materials, used to produce braille text and tactile graphics for people who are blind or have low vision. Braille embossers function similarly to printers but press dots upward into heavy paper to create tactile…

End Effector(also: Haptic Stylus, Haptic Pen)

The physical component of a haptic device that the user directly touches or manipulates to interact with a virtual environment. In assistive technology contexts, end effectors translate digital information into tactile sensations — the device applies forces, vibrations, or…

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