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UHVMate

UHVMate
  • #: 17106
  • Price: $0.99 In Apple Store
  • Category: Reference
  • Updated: 2010-12-22
  • Current Version: 1.0
  • 1.0
  • Size: 0.20 MB
  • Language: English
  • Seller: Jeff Sherman
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.1 or later.
  • © 2010 Jeff Sherman
  •  Add to Favorite apps

 

Description

UHVMate is a tool for quickly analyzing several aspects of ultra-high vacuum (UHV) systems. You might still need the back of an envelope, but throw those data tables away.

Conductance:

How fast can a pipe or aperture transport gas under UHV molecular flow conditions? UHVMate includes the parameters for standard ConFlat-style parts, and allows arbitrary pipe diameter and length calculations. Pre- and post-bake conditions are treated by calculating conductance for both nitrogen and hydrogen gases.

Outgassing:

Build a model of your UHV system from a library of over 90 standard ConFlat-style parts, including some Kimball Physics chambers. Add quantities of outgassing metals, glasses, or elastomers. Then, select a pumping speed and conductance, and the ultimate base pressure is calculated. The only grain of salt to take is that UHVMate assumes a uniform effective pumping speed, outgassing, and therefore pressure.

Saturated vapor pressure:

UHVMate incorporates known coefficients for many elements, allowing for the calculation of vapor pressure as a function of temperature. Also shown are the materials' melting points, and several other temperature dependent properties inferred from ideal gas laws: mean free path, number density, mean speed, and molecular impingement rates.

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The information may be outdated (2011-03-27 20:23:43). For actual information go to iTunes


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