Meaning
Dynamic feedback system that cancels low-frequency mechanical disturbances in precision metrology environments. High-resolution non-contact surface profilers rely on active vibration isolation to suppress floor-borne frequencies below five hertz that passive tables cannot absorb. Unwanted seismic vibrations are cancelled before they can distort the scanned height profiles of delicate molded lenses.
Control Mechanism
Feedback control operates by sensing acceleration and applying counter-forces in real time. Piezoelectric sensors detect micro-seismic movement across multiple axes, and electromagnetic actuators apply equal and opposite forces to stabilize the platform. This active correction prevents phase shifts in scanning white light interferometers measuring resin contraction.
Measurement Fidelity
Measurement fidelity directly affects the scrap rate of micro-molded parts. When external vibrations reach the measurement path, they create artificial surface waviness or false roughness readings on the part datasheet, causing false rejects during quality control. Removing these artifacts ensures that surface finish measurements reflect the actual cavity steel replication rather than environmental noise.
Production Integration
Locating sensitive optical profilers next to the molding floor is impossible without these systems. Industrial floors exhibit continuous seismic vibration from material handling and heavy clamping cycles. Mitigating this noise locally allows rapid inspection without transporting delicate parts to remote clean rooms.
