Mixed Light · ML-3000™

Fluorescent inspection in full daylight

The ML-3000 daylight fluorescent scanner picks out fluorescence signals of less than 20 lux against background light of up to 100,000 lux. Penetrant and magnetic particle inspection no longer needs a darkroom.

ML-3000 Mixed Light inspection system

< 20 lux

Fluorescence signals detected

100,000 lux

Background light it works in

Tens of µm

Calibrated accuracy from over 40 cm away

90%

Typical cut in inspection costs

Why Mixed Light

Take the darkroom out of the process

“Mixed Light” is an inspection technique developed by Inspection Tech. It detects the very faint light emitted by fluorescent penetrant dyes, even against strong background light, so inspection no longer needs a separate darkroom or inspection cell.

  • Inspect at any stage of manufacture, whatever the lighting
  • Remove bottlenecks and raise throughput at inline inspection points
  • Inspect forgings, castings and extrusions too big or heavy to move into a darkened room
  • Save manpower and floor space, with payback in as little as a few months
ML-3000 mounted on a robot arm above a large aluminium casting
Overlay mode: fluorescent defects drawn over the live visual image

Automated analysis

Software that does the inspecting

The ML-3000 software can replace a human inspector. It automatically identifies regions of interest, overlays false-colour defect maps on the live image of the part, and keeps a permanent record of every result for 100% quality audit and compliance.

It works with both magnetic particle inspection (MPI) and fluorescent penetrant inspection (FPI), bringing faster processing and more consistent quality audits.

Accuracy

Why size matters

Accurate, consistent measurement is the cornerstone of repeatable QA. Once calibrated against a reference, the ML-3000 measures to within tens of microns from a stand-off of more than 40 cm.

ML-3000 measurement against a calibrated standard
Performance against a calibrated standard, to an accuracy of 50 microns.

Size filtering for selective detection

Not every indication matters. Some features are too small to be of consequence, so the system can be set to detect and report only defects within a size range you define.

High-tolerance castings and forgings are often critical components that cannot afford an unnoticed defect, and they are expected to withstand ever harsher pressures, stresses and temperatures.

Proof under bright light

Invisible to the eye. Obvious to the ML-3000.

A certified MPI test piece under high-wattage halogen lamps, with 20,000 lux of background light at the surface. In these simulated daylight conditions the fluorescent signal is completely lost to the human eye. Existing equipment has to test and calibrate in the dark.

The ML-3000 removes the background light in real time, so it inspects in ordinary workshop lighting.

ML-3000 mounted on an ABB robot arm in a normally lit inspection cell
The ML-3000 on an ABB robot arm, in a normally lit inspection cell.

Viewing modes

Four ways to see every part

Visual mode
Visual The regular visual image.
Overlay mode
Overlay Real-time fluorescent defects and defect data over the image.
NDT mode
NDT All background light removed, with sizing information.
Dual mode
Dual NDT and overlay views side by side.

Get in touch

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