Glossary
Searchable terminology from accessibility, web standards, and related fields.
3 results found in Engineering.
- Passive Pin Retention
- A mechanical technique used in refreshable Braille display design where pins are held in their raised or lowered positions by a passive mechanical structure rather than by continuously powered actuato…
- Piezoelectric Actuator (Piezo Actuator, Piezoelectric Bimorph)
- A device that converts electrical energy into precise mechanical motion using the piezoelectric effect — the property of certain materials to change shape when an electric voltage is applied. In assis…
- Signal Drift (Baseline Drift, DC Drift)
- Signal drift is the gradual, unintended change in the baseline level of a measured signal over time, caused by factors unrelated to the intended measurement. In bio-electrical sensing for assistive te…