Circuit reliability (also time availability) (''CiR'') is the percentage of
time
Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, to ...
an electronic circuit was available for use in a specified period of scheduled
availability
In reliability engineering, the term availability has the following meanings:
* The degree to which a system, subsystem or equipment is in a specified operable and committable state at the start of a mission, when the mission is called for at a ...
. Circuit
reliability
Reliability, reliable, or unreliable may refer to:
Science, technology, and mathematics Computing
* Data reliability (disambiguation), a property of some disk arrays in computer storage
* High availability
* Reliability (computer networking), a ...
is given by where ''T''
o is the circuit total outage time, ''T
s'' is the circuit total scheduled time, and ''T''
a is the circuit total
available time.
In addition, circuit reliability is the expected lifespan of operation of a functioning system under nominal conditions.
References
{{FS1037C MS188
Electrical engineering