Air Leak Testers and Characteristics of Gases
Air leak testers test for air tightness making use of air pressure. It is important to correctly understand the characteristics of gases (air).
“Air Leak Testers and Characteristics of Gases—Basic Theory” omits numerical equations as much as possible and explains the theory necessary for leak testers.
It explains the effect of adiabatic change which occurs as a result of increasing the air pressure in WORK, how the air temperature inside WORK stabilized, and stabilization coefficients which depend on the shape of WORK.
It explains through theory that how quickly WORK stabilizes depends, not so much on its internal volume, but more on stabilization coefficients related to its shape.
It also explains in detail about what is involved in each step of air leak testing and how to calibrate the sensitivity of leak testers.
The sensitivity of leak testers can be calibrated using one of two methods: by adjusting the volumetric capacity and by using a leak MASTER.
Under normal usage conditions, either calibration method will produce similar calibration results. However, when temperature conditions are different, calibration by the leak MASTER is used as the standard, since its leak is known.This is because calibration by using a leak MASTER can calibrate the leak test system based on the leak hole.
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