APPLICATION / PRECISION MOTION

Optical encoders for precision motion and linear stages.

Build the feedback selection around the complete axis rather than a single resolution target.

ENGINEERING CONTEXT

The decision starts with the real constraint.

The best encoder choice depends on mechanical envelope, scale mounting, motion profile, controller interface and environmental stability. A nominal nanometer value alone does not establish positioning accuracy.

Discuss your requirement

CRITICAL REQUIREMENTS

Define these before model selection.

01

Feedback target

Separate commanded resolution, encoder resolution, scale accuracy and system repeatability.

02

Dynamic profile

Map maximum velocity and acceleration to output frequency and controller capability.

03

Mechanical stack

Confirm travel, scale material, readhead gap, cable routing and Abbe offsets.

EVIDENCE CHECKLIST

Ask for evidence that closes the decision.

  • Configuration-specific speed
  • Scale accuracy at stated temperature
  • Installation tolerance
  • Repeatability and positioning test method

TECHNICAL REVIEW

Turn the requirement into a selection brief.

Send the application, critical parameters and any drawing or process information available.

Discuss your application