Reference Target Placement for Flexible Plastic Parts
Position reference targets on flexible plastic parts at high-stiffness rib intersections using explicit 3-2-1 restraint forces to eliminate gravity sag and inspection disputes.
Blue Light Scanner
Meaning
Metrology instruments use narrow-band light to capture surface geometries by projecting fringe patterns and recording the distortion through high-resolution cameras. A blue light scanner operates at a wavelength that filters out ambient factory light, allowing for precise digitization of dark or shiny plastic surfaces without the need for anti-reflective sprays. This capability makes it a standard tool for inspecting complex injection-moulded geometries where contact probes cannot reach.
Light Interference
Filtering capabilities allow the sensor to ignore infrared noise from nearby heat sources or standard overhead lighting. Most sensors in this category utilize LEDs to produce a stable light source that ensures repeatable data across various production shifts. High-intensity output reduces the exposure time required for each shot.
Surface Resolution
Point cloud density determines how well the system identifies small features such as texture or parting line witness marks. A dense mesh captures subtle sinks that a touch probe might skip. This data helps moulders identify where a tool is wearing or where cooling is uneven.
Scanning Depth
Measurement limits depend on the lens configuration and the distance between the part and the sensor. Larger parts require multiple scans that the software must stitch together using reference targets. This process maintains accuracy across the entire assembly.