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Conduction Cooling Techniques for Rugged Computers (.pdf)
where conduction cooling is helpful, is. the design of a sealed computer box to avoid exposing the. The wedge lock mechanism along the card guides, defined. electronics to dust or contaminant, for example kerosene. in the norm, secures the card inside the chassis and applies. vapours. pressure
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Design Criteria for Optimum Cooling and Shielding of Enclosures
of the design should be to use conductive material, limit the number and size of openings and eliminating seams to the extent possible. Achieving these objectives, however, is often in conflict with cooling, maintainability and cost. The challenges of the electronic packaging engineer are many
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Designing Electronic Enclosures: A Balancing Act
Like the performer in a high wire act, balance is an important element of success in electronic enclosure packaging. The more the performer stacks on his shoulders, his balancing staff, or his arms, the more he needs to make critical shifts in other areas to maintain his equilibrium. Its similar
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Electronic Motor Diagnostics
of motor current signature analysis (MCSA). One of the more complex systems to test is the AC salient pole alternator, which we will refer to as a generator for the purposes of this paper. Microsoft Word - 2004-042-Penrose_FINAL.doc. Electronic Motor Diagnostics. Howard W. Penrose. ALL-TEST Pro
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The refrigerator revolution
. Meanwhile, natural ice, placed in insulated tin or zinc-lined boxes, was commonly used to refrigerate food. In this era, others contributed to modern household refrigerators as we know them today. For example, Michael Farady, in the early 1800s, liquefied ammonia to cause cooling. In 1889 and 1890
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Hot tips for cool enclosures
When it comes to cooling enclosures, it's time to think inside the box. Filter fans are best for applications with relatively clean ambient air and ambient temperatures lower than the desired internal enclosure temperature. They are generally available in sizes from 12 to 680 cfm. Air-to-air heat
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Low Frequency Machinery Monitoring: Measurement Considerations
for low frequency measurements. Low frequency condition monitoring generally requires measurements within a 0.1 to 10 Hz (6 to 600 cpm) bandwidth. Applications include paper machines, cooling towers and slow speed agitators. Gear boxes, compressors and other higher speed machinery may also exhibit
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Managing Heat Transfer With Potting Compounds
Today's electronic designs are smaller in size and deliver more power, which requires that they run at higher temperatures. In order to maintain long life and high reliability, they must be able to dissipate that heat efficiently. Fans, vents and other cooling devices take up valuable design space