Thermography + Pyrometer/PLC Troubleshooting & NDA-Safe NDT Evidence
Diagnosing pyrometer measurement bias in a PLC-controlled setup due to ambient IR, reflection, and line-of-sight effects, plus representative dye-penetrant and visual inspection examples.
Troubleshooting — Pyrometer + PLC Measurement Chain (Ambient / Reflection Bias)
Ambient/background IR validation near the pyrometer line-of-sight using a high-emissivity reference (skin ε≈0.98) during PLC-controlled troubleshooting.
What this diagnostic work demonstrates
This documents troubleshooting of a PLC-integrated pyrometer where unstable readings were driven by ambient temperature gradients and reflected IR from nearby surfaces — a common failure mode when measuring low-emissivity metallic targets.
Representative diagnostic artifacts; no customer identifiers, PLC tags, or proprietary setpoints shown.
Simulated Pyrometer + PLC Line-of-Sight Context
NDA-safe schematic visualization used to evaluate pyrometer field-of-view, standoff distance, and background IR/reflection paths before modifying PLC scaling or control logic.
NDA-Safe NDT Evidence — Dye Penetrant / Visual Inspection
Representative inspection examples
Cropped, identifier-free images demonstrating inspection workflow and indication marking. Focus: surface condition awareness, documentation discipline, and defect-screening interpretation.
All images are representative and intentionally avoid customer-specific geometry, part numbers, or process parameters.