Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Ultrasonic Sensor(also: Ultrasound Sensor, Proximity Sensor)
- A device that measures distance to objects by emitting high-frequency sound waves and calculating the time it takes for the echo to return. In assistive technology, ultrasonic sensors are commonly used in electronic travel aids and wearable navigation devices for blind and…
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