Archive | December, 2013

Probes for Internal Thread Inspection

The Problem: Inspection of the integrity of small internal threads such as M10.

The Solution: Very small fiberoptic probes can be made having two diametrically opposed sensors.Thread Inspection Probe

The probe can be used to  scan the length of internally threaded holes as the probe is inserted. The probe is rotated 90° at the bottom of the hole and the thread is scanned once more as the probe is retracted, thereby providing complete thread inspection every 90°. Plus and minus accept/reject tolerances can be set by comparing known good part voltages with known defective part voltages. Missing, shallow and/or damaged threads can be detected as they fall outside the accept/reject tolerance.

Advantages of Fiberoptic Probes

  • Non-Contact
  • High Speed
  • For All Materials Including Non-metals
  • Catches Missing, Shallow, Damaged Threads

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