Measurement speed and precision are critical performance parameters in inline 3D inspection. This is especially true in modern high volume production environments where process and task times are short and manufacturing tolerances are often defined in micrometers. Conventional optical 3D measurement methods such as laser triangulation and structured light technologies have been used extensively in industrial applications for decades now.
A newer class of optical methods with relatively high z-precision and leveraging the chromatic confocal principle are available for specialized industrial 3D measurements. Common to these methods is the use of polychromatic light and chromatic dispersion optics that encode height information to wavelength.
Unique to this class of confocal sensors are the line scan type combined with powerful smart sensor design.
Introducing Smart 3D Line Confocal Sensors
Gocator 5500 smart 3D Line Confocal Sensors are a new lineup of this technology type that deliver high speed, wide coverage line scanning with simultaneous generation of 3D topography, 3D tomography, and 2D intensity data.
This unique capability allows these sensors to scan practically any material type––including multi-layered, transparent/translucent, curved edge, shiny/specular, high-contrast textured, mixed, and many more––with submicron precision, and at a level of quality and speed that outperforms competing confocal technologies. Proven Gocator® line confocal inspection applications include cell phone display glass, glue bead volume and position (transparent/translucent), medical seal integrity, battery weld seam integrity, semiconductor manufacturing, surface roughness measurement, and many more.
Features of note:
● Simultaneous generation of multiple profiles from multi-layer structures
● Generates 1792 data points per profile
● Fast scan rates (Over 16 kHz w/ PC acceleration)
● High X resolution (2.5 µm), sub-micron Z precision (0.05 µm)
● Handles wide variety of material types
● Dual-axis optical design provides higher signal quality
● Runs next-generation onboard measurement and inspection software
Dual-Axis Optical Design to Detect Finer Features
Gocator 5500 sensors use a dual-axis optical system that improves noise immunity and provides higher signal quality. This makes it possible to scan difficult surfaces and very fine features.
In the context of confocal microscopy, this dual-axis confocal design has several advantages over the more conventional single-axis design in high-resolution microscopic imaging. These advantages include submicron resolution in the axial as well as transversal dimensions; improved detection sensitivity for semi-transparent and porous materials; and greater suitability for industrial inline measurements.
Generates 3D Tomography, 3D Topography, and 2D Intensity Data
Gocator® 5500 sensors simultaneously generate 3D tomography, 3D topography, and 2D intensity data for each layer of a material, making it possible to measure the thickness of individual layers or detect defects on secondary layers.
High Speed. High Resolution.
Gocator® 5500 sensors feature a custom high-speed imager and high-performance electronics to deliver metrology-grade inspection at up to 16 kHz, with scaling fields of view by model, X resolutions up to 2.5 microns, and Z repeatability up to 0.05 microns.
Smart Sensor Design - Measurement and Inspection Software Included
Gocator® 5500 sensors are built on LMI's leading smart sensor design architecture that includes an easy-to-use web-based interface with next-generation onboard IIoT vision software, built-in measurement tools, I/O connectivity, and multi-layer profiling support accelerated using a PC.
courtesy of LMI Technologies
visit www.lmi3d.com