Galvoohjattu
Galvoohjattu, a Finnish term meaning galvo-controlled, refers to a beam-steering system that uses galvanometer-driven mirrors to deflect a light beam. In practice, it denotes an arrangement where two small mirrors mounted on galvanometer motors steer the beam in two orthogonal axes, enabling rapid, precise scanning of a target field. The term is common in Finnish technical literature on laser scanning and related optical instrumentation.
Operation: Digital commands are translated into analog voltages that drive the two galvanometers. By adjusting the
Design considerations: Key metrics include angular range, linearity, repeatability, settling time, and jitter. Optical design must
Applications: Galvo-controlled scanners are widely used in laser engraving and marking, laser cutting, and micromachining. They
Limitations: Wear on moving parts, hysteresis, thermal drift, and susceptibility to vibration can affect performance. Compared