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  • Procedure to Verify Proper Operation of Tachometers and Optical Sensors
    When a Tachometer/Sensor has a visible light output and has passed the fluorescent light calibration check, THERE IS NOTHING WRONG WITH THE TACHOMETER ORSENSOR. We suggest trying a new piece of Reflective Tape or contrasting color, holdsteady and aim from the correct distance to obtain actual RPM.
  • EETimes.com | Electronics Industry News for EEs & Engineering Managers
    -for-test (DFT) dominated discussions of how to fight the astronomical costs of automated test equipment. Disks, tape vie for DTV storage duties The technology war between optical disks and digital tape escalated this past week at the mammoth, multi-industry Ceatec Japan 2000 trade show, with volleys
  • Smart Computing Article - Mass Storage: A Place For Everything
    Mass Storage: A Place For Everything December 2001 Vol.7 Issue 12 Page(s) 106-109 in print issue Add To My Personal Library Mass Storage: A Place For Everything The Scoop On Hard Drives, Optical Drives, Tape Drives & More Advances In Hard Drive Technology Hard drives are undoubtedly the most
  • Measuring the long haul
    . But where stainless tape is punched with a coded pattern and read by an optical sensor, the new method makes use of an extruded aluminum profile containing buried magnets. A special Hall-effect sensor detects the magnets and determines absolute position. These position multiplexer encoders, or Pomux
  • Wired 9.01: Best
    Great stuff - tested and approved in our top-secret labs. DVD players let you relax with a crystal-clear version of or dig deep into extras that don't come on tape. Pioneer's DV-09 follows the connoisseur path with fanatical precision and Russian-tank shielding. A 4.5-mm-thick case of copper-lined
  • Wired 9.01: Best
    Great stuff - tested and approved in our top-secret labs. DVD players let you relax with a crystal-clear version of or dig deep into extras that don't come on tape. Pioneer's DV-09 follows the connoisseur path with fanatical precision and Russian-tank shielding. A 4.5-mm-thick case of copper-lined
  • When to go Linear
    . Optical encoders use a light scanning principle where two scaled gratings of equal graduations move relative to each other. A reflective glass or steel-tape media has nonreflective stripes forming one grating. An index grating of opaque strips on a transparent material moves along the reflective media
  • Virtual Reality and CAD
    -disk jukeboxes, and mag tape or optical-disk libraries. This additional layer is basically a near-line storage system that keeps information available with access times on the order of seconds or longer. The term virtual reality has come to mean the ability to "walk around " 3D mathematical models and view
  • Magnetic Field Sensors as Speed Monitors
    Magnetic field sensors are generally based on the magneto-resistive or Hall-principle. Compared to optical speed sensors, resolvers and precision potentiometers, magnetic field sensors do not contain movable parts, such as shafts, bearings, code disks or slip rings. An aspect allowing them
  • Non-chromated Conversion Coating for Magnesium Alloys and Zinc-Nickel Plated Steel
    (NSF) and electrochemical corrosion tests. Surface wettability of the pretreated substrates was investigated by static contact angle measurements. Wet-tape adhesion tests verified that there is strong adhesion between the primer and the chem film-treated substrates. The morphology and composition

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