A few of vacuum leak hunting common and basic ideas
From;    Author:Stand originally
Vacuum leak hunting detects namely the process of the flat place of vacuum system and its size.


Flat also call solid leakage, it is the phenomenon that the leaks that gas passes a system to go up or clearance shed low-pressure side from high-pressured side.


Empty leaks, it is the phenomenon of a kind of physics relatively solid leakage. As a result of,this kind of phenomenon is material deflate, desorption, condense of gas evaporate again, gas is passed implement the phenomenon of the wall that permeates those who reach the gas in the space dying inside the system to pour out of pressure of the gas in waiting for a reason to cause vacuum system to lift.


Air-tightness is token vacuum system implement the function that the wall prevents gas to permeate, it includes to pass leaks (or clearance) flat the ooze that pledges with material is angry.


The smallest but leak hunting rate is to point to what the leakage that go out leads to method of some kind of leak hunting can detect the least value.


Optimal sensitivity is to point to leak hunting instrument or leak hunting method to be able to detect below optimal condition the rate of the smallest leakage that give. Will tell to leak hunting instrument, optimal sensitivity calls an instrument sensitivity again.


Leak hunting sensitivity is to point to fall in specific requirement, method of some kind of leak hunting can detect the rate of the smallest leakage that give. Leak hunting sensitivity calls effective sensitivity again.


Reaction time, begin to carry out from leak hunting method namely (if begin in season,blow search gas) to demonstrative method (like appearance) the time that makes response.


Eliminate time, stop from leak hunting method namely (if quit in season,blow and begin to take out search gas) the time that disappears to the directive that indicates a method.


Leakage rate, leaks has flowed inside unit time namely (include space) aeriform quantity.