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Take hundreds of measurements with micron-level precision, 0.2 micron repeatability, in 3 dimensions, with high throughput. Automatically locates fiducials and features, and takes multiple measurements with high precision.

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This system provides an automated platform for high-resolution part inspection. Components are manually loaded into custom-built nests installed on Primatics .02 micron X-Y table stacks.

Viewing custom screens and navigating via standard computer keyboard, the operator selects a recipe and then activates the cycle-start command. As the nests are moved into the inspection area, part I.D. is automatically verified by an onboard barcode reader.

Vision inspections are performed by either of two Cognex digital cameras, with height inspections completed by a Class II Laser device.

Machine guarding is via a light curtain designed to immediately halt or prevent machine movement whenever the light beam is interrupted.

SPECIFICATIONS

• Throughput: Typically 90 – 120 per hour.
• Repeatability: better than 0.2 microns when evaluated using Cognex Vision Pro 4.0.
• Accuracy: +/- 3 microns x axis, +/- 2 microns y axis
• Throughput: 90 – 120 parts per hour
• Inspection: Over 100 different measurements performed at 6 distinct steps in the assembly process.
• Repeatability: Better than 0.2 <m High Mag, 1 <m low mag
• Reliability: Monthly calibration to NIST standard
• Machine Vision: Two Cognex digital cameras, 1024 X 1280.
• Control System: Custom design, Windows-based.
• Operator Interface: Custom screens created with Visual Basic.

KEY ATTRIBUTES:

• Automatically locates and zeros on existing fiducials (or any other feature) on test part.
• Normal pass/fail optical comparator inspections can be performed with actual data as the result.
• Recipe-based inspection of parts with user interface for developing recipes for new parts.