Test Automation2026

Filter Defect Detector

Automated inspection rig that flags optical-filter defects in minutes instead of hours of manual review.

Labeled outline diagram of the optical inspection station: camera, lens, sample holder, and sliding stage on an aluminum frame

Teledyne DALSA line-scan camera (illustrative product image)

Optical filter showing its RGB spectral response (illustrative)

Machine-vision camera with a C-mount lens (illustrative product image)

These are illustrative images, not photos of the actual system, and were not taken by me. The real project is confidential, so it can't be shown.

Hours → 20 min

Validation time

HIL

Automated inspection

Built during my test-engineering co-op at Teledyne DALSA: an automated routine that detects filter defects, replacing a slow, subjective manual process.

Highlights

Engineered a Python/TestStand framework that replaced manual inspection with an automated hardware-in-the-loop routine.
Cut a multi-hour manual validation down to a ~20-minute automated task.
Standardized pass/fail criteria so results are repeatable across operators.

01The problem

Filter inspection was manual, multi-hour, and operator-dependent: different people made different judgement calls, with a long turnaround per unit.

02What I built

A Python/TestStand framework that drives the test hardware in the loop, captures measurements automatically, and applies consistent defect criteria, with no human eyeballing required.

03Result

The same validation now runs as a ~20-minute automated task with repeatable, operator-independent results.

Want to talk through how I built this?