Definition
A method of slowing or stopping the movement of a meter pointer or other moving element by using the electrical currents induced in a conductor as it moves through a magnetic field. The induced currents create their own magnetic field that opposes the motion, smoothly braking the movement without physical contact.
Plain English
A way of using electricity and magnetism to gently slow down a moving part so it settles quickly instead of swinging back and forth. Nothing touches the moving part — the braking happens through magnetic force alone.
Context Anchor
Seen in discussions of aircraft instruments, especially older analog gauges with moving needles or rotating parts.
Derivation
From 'electro' (electricity) and 'dynamic' (motion), with 'damping' meaning to reduce or slow. The term describes damping that uses electrical motion effects rather than mechanical friction or fluid resistance.
Why Pilots Care
Prevents instrument needles from oscillating excessively so pilots receive stable, readable indications during flight maneuvers.
Analogy
Think of waving a strong magnet near a sheet of aluminum — you can feel a quiet drag even though nothing is touching. That same invisible drag is what stops an instrument needle from overshooting.
Grounding Statement
Picture a gauge needle moving toward a new reading, then settling quickly instead of overshooting and wobbling around the correct value.
Intuition Check
“Damping” does not mean making something wet here. It means reducing unwanted motion or vibration. “Electrodynamic” means the damping comes from electric and magnetic effects, not from a pad, spring, or rubbing surface.
Example Sentence 1
Electrodynamic damping in the meter movement allows the pointer to settle quickly on the correct value without overshooting.
Example Sentence 2
During preflight checks the pilot confirmed that electrodynamic damping was functioning so the attitude indicator would settle quickly after turbulence.