Patent ID: 8380448

Claim:
A leak detection system comprising: a pressure system configured to hold a first volume of a fluid at a first pressure at time 0 ; a fluid pumping unit coupled to said pressure system, said fluid pumping unit configured to supply a selected volume of a test fluid to said pressure system, said pressure system holding said first volume and said selected volume at a test pressure at time 1 , said test pressure at time 1 being greater than said first pressure at time 0 ; a general purpose computer configured to accept and store an operating program and data as a function of time; at least one pressure sensor coupled to said pressure system and said general purpose computer, said pressure sensor being configured to sense said first pressure at time 0 , said test pressure at time n , and said time (n+1) , and said pressure sensor being configured to transmit a signal reflective of said first pressure and said test pressure at each of said time n and time (n+1) to said general purpose computer; said operating program configured to calculate a leak detection value, said leak detection value being a function of a variance of said test pressure at time 1 and said test pressure at time 2 ; and said test pressure at time 3 ; through said test pressure at said time n and said test pressure at said time (n+1) ; and a graphical output operably coupled to said general purpose computer, said graphical output configured to display said leak detection value as a function of time.