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  • Surface Analysis: Beyond Roughness
    and the reasons for doing so go far beyond roughness. In fact, many experts choose to use the terminology of "surface texture" rather than simply calling these characteristics "roughness.". Some measurements determine how a surface will bear loads, while others determine how well a surface provides
  • Surface Smoothness: The Surface Roughness of Anodic Coatings Resulting from the MLT-II and MLT-III Processes are Analyzed
    The surface roughness of aluminum alloys anodized using the METALAST process has been measured and the results are summarized in this spec. The surface roughness is reported on the average of the results obtained from the four samples of each alloy with eight measurements evenly distributed on both
  • Surface Finish Measurement Basics - Roughness Is An Important Characteristic of Machined Surfaces
    The growing influence of surface. finish can be traced to dramatic changes. in manufacturing specifications and. drastic tightening of dimensional tolerances. over the past few decades. As a. result of these changes, the proportion. of the tolerance range, which is taken up. by surface
  • SmartMoves TM Spotlights: Veeco Instruments, Inc. (.pdf)
    roughness and topography, with subnanometer resolution. The measurements are accurate, repeatable and high speed. Veeco chose Galil's Ethernet-based DMC-3425 motion controllers for its profilers because they provide a highly versatile and powerful form of distributed control where many controllers can
  • Surface Texture Parameters
    roughness and waviness data. Proper selection of the correct filter cutoff in software is critical to measurement accuracy. Evaluation Length- The area from which data is obtained. It is a three dimensional area that corresponds to the instrument field of view, or a two dimensional profile
  • The ABC's of Rz
    Recently an American-based German manufacturer was awarded a contract to produce some parts for a Japanese company. According to the contract, critical surface areas of the parts were to meet roughness criteria as defined by the Rz parameter. This appeared to be no problem, as Rz-mean roughness
  • Medical Device Link .
    Surface Metrology for Stent and Implant Manufacturing White-light interferometry combines speed, resolution, flexibility, and ease of use to enable process optimization and quality control measurements of surface contours and quantitative roughness. Implanted devices and prostheses have
  • MICRO: Spotlight
    . The company's total reflection x-ray fluorescence equipment, TREX, is used to measure very small amounts of contamination (parts-per-billion levels) on or near the wafer surface. S-Mat tools, which determine film thickness, density, surface roughness, interface roughness, and composition, combine

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