The Quatro

The Modulo Quatro features four independent measurement channels, each operating as a standalone measurement point. It can run multiple closely-spaced measurement points through a single optical head — quadrupling scan speed — or operate with four separate optical heads to capture different angles simultaneously and extract the 3D displacement component.

MCRQ technology eliminates the need for high-accuracy optical components or positioning, making the Quatro exceptionally rugged and straightforward to deploy.

STANDARD FEATURES

Robust & Versatile — four independent measurement channels; single or quad optical head configurations; no precision alignment required

Fiberised Optical Head — mounts easily to suit a wide variety of measurement conditions; configurable for a broad range of stand-off distances

Analogue & Digital Outputs — both analogue and digital signals proportional to surface displacement

High Sensitivity on All Surface Types — stable demodulated signal even on rough, porous, rusted, or mirror-like surfaces

Rapid Inspection — measurement speeds up to metres per second

Not Wavelength Dependent — compatible with a range of laser wavelengths from visible to infrared

4 independent measurement channels

Single or quad optical head configurations

MCRQ technology — no precision alignment required

Analogue and digital outputs

High sensitivity on all surface types including rough, porous, and mirror-like

Broad wavelength compatibility (VIS–IR)

Scan speeds up to metres per second

• Aerospace Composite Inspection
  • Multi-point scanning of carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP) structures. The Quatro’s four-channel design quadruples throughput compared to single-point systems, making it well suited to C-scan inspection of large panels, spars, and complex-geometry components where delamination, porosity, or impact damage must be detected.
• In-Process Industrial NDT
  • High-speed, non-contact inspection of components moving on a production line. The ability to run multiple closely-spaced measurement points through a single optical head allows scan speeds up to metres per second — without contact, coupling fluid, or part handling.
• 3D Displacement & Shear Wave Mapping
  • Using four separate optical heads at different angles simultaneously, the Quatro can extract the full 3D displacement component of surface motion — enabling characterisation of shear wave propagation and anisotropic material behaviour in composites, metals, and ceramics.
• Pipeline & Weld Inspection
  • Rapid scanning of welds, heat-affected zones, and pipe walls for cracks, lack of fusion, or wall thickness variation. Non-contact operation removes the need for surface preparation or coupling media, and performance is maintained on rough, oxidised, or painted surfaces.
• Defence & Aerospace Structural Health Monitoring
  • Multi-point monitoring of bonded joints, honeycomb panels, and structural assemblies. Simultaneous acquisition across multiple points enables rapid baseline comparison and anomaly detection in field or depot maintenance settings