Servo Driver Yields Micron-Level Scanner Accuracy

Full servo state control with "zero-tracking error" eliminates speed-related part distortion.

The Nmark GCL is a closed-loop, two-axis servo driver that controls Aerotech’s AGV series scanners.
The Nmark GCL is a closed-loop, two-axis servo driver that controls Aerotech’s AGV series scanners.
Aerotech

The Nmark GCL is a closed-loop, two-axis servo driver that can control Aerotech’s (Pittsburgh, PA) AGV series scanners to yield improved settling times, long-term thermal stability, and micron-level tracking accuracy. Features include:

  • Infinite field-of-view (IFOV) combines scanner and servo motion to expand the scanner working area.
  • Full servo state control with "zero-tracking error" eliminates speed-related part distortion, such as necking on circles and rounding of corners.
  • Position-based laser firing (PSO) with windowing maintains consistent spot spacing over a range of operating speeds.
  • An external clock input for synchronization with mode-locked lasers.
  • Advanced interpolation electronics to provide up to 26-bits of effective resolution.
  • Onboard real-time 2D calibration for accurate beam placement over the entire field of view.
  • 200 kHz servo rates.

For more information, visit www.aerotech.com

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