• Optical Options: For most modern vision systems, taking measurement points in the Z-axis is a standard feature or offered as an option. When combined with high-magnification optics, the system can capture numerous, accurate data points in all three dimensions. New multi-sensor measurement platforms may be equipped with dual optical systems that work in tandem to allow measurement of a diverse range of features with one single device. A primary zoom lens enables small intricate features to be inspected with high precision and resolution down to 2 microns. A secondary large field- of-view camera can be equipped with a telecentric lens that can simultaneously inspect large areas of a part, or an entire part itself. A broad range of zoom options also means that measurement configurations can be custom tailored to meet the specific application requirements for each user. This advancement in
Starrett AVX550 Multi-Sensor Vision System is equipped with dual optical systems and touch-probe capability to measure parts with a diverse range of feature sizes and geometries.
measurement technology allows companies to have the best of both worlds in one metrology system, without the need to change lenses or re-calibrate the unit. The option to have dedicated or interchangeable lens configurations on a bayonet for almost all camera options ensures that any one system can be configured with a multitude of lens types, requiring fewer inspection systems, saving floor space and money. • Touch Probes: This capability increases the accuracy of vision systems by providing an additional layer of inspection, allowing for the capture of discrete points on a part’s profile to be built into the inspection process as programmable
steps. Discrete points that can be hard to reach, such as bore holes, can be accurately measured with the touch probe sensor by traveling into recessed spaces and taking the required measurements directly. Touch probes can also help determine when a cutting tool is falling out of spec and needs replacement. • Lighting Options: Proper light control is crucial to accurate in- process measurement for ensuring that highly reflective surfaces found on many medical devices do not interfere with obtaining accurate results. All lighting components on vision systems can be adjusted for intensity, depending on the specific needs for measuring the part feature. For repeatable and reliable results, light levels can be integrated into the inspection process as programmable steps. This ensures that enough light is present to illuminate the feature, without washing it out and distorting the image. Darkfield lighting, which utilizes a low angle ring light that is positioned very closely to the workpiece, is ideal for parts such as joint replacements which have highly reflective surfaces. Surface defects, scratches, or engraving of serial or part numbers can be more easily identified.
Starrett HDV300 combines the best features of a horizontal optical comparator and a vision system. The all-digital optical video comparator enables dimensional specifications to be imported in the form of digital CAD files, avoiding the need for mylar overlays.
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