Built-in test equipment (BITE) for
avionics
Avionics (a blend of ''aviation'' and ''electronics'') are the electronic systems used on aircraft. Avionic systems include communications, navigation, the display and management of multiple systems, and the hundreds of systems that are fi ...
primarily refers to passive
fault management
In network management, fault management is the set of functions that detect, isolate, and correct malfunctions in a telecommunications network, compensate for environmental changes, and include maintaining and examining error logs, accepting and ...
and diagnosis equipment built into airborne systems to support maintenance processes.
Built-in test equipment includes
multimeter
A multimeter is a measuring instrument that can measure multiple electrical properties. A typical multimeter can measure voltage, resistance, and current, in which case it is also known as a volt-ohm-milliammeter (VOM), as the unit is equipped ...
s,
oscilloscope
An oscilloscope (informally a scope) is a type of electronic test instrument that graphically displays varying electrical voltages as a two-dimensional plot of one or more signals as a function of time. The main purposes are to display repetitiv ...
s, discharge probes, and
frequency generators that are provided as part of the system to enable testing and perform diagnostics.
The acronym BIT is often used for this same function or, more specifically, in reference to the individual tests.
BIT often includes:
* The detection of the fault
* The accommodation of the fault (how the system actively responds to the fault)
* The annunciation or logging of the fault to warn of possible effects and/or aid in troubleshooting the faulty equipment.
Functionality
* Analysis of failure monitoring results
* Reporting and memorization of failures
* Management of tests
See also
*
Built-in self-test
A built-in self-test (BIST) or built-in test (BIT) is a mechanism that permits a machine to test itself. Engineers design BISTs to meet requirements such as:
*high reliability
*lower repair cycle times
or constraints such as:
*limited technic ...
*
Logic built-in self-test Logic built-in self-test (or LBIST) is a form of built-in self-test (BIST) in which hardware and/or software is built into integrated circuits allowing them to test their own operation, as opposed to reliance on external automated test equipment.
...
*
Software fault tolerance
References
Test equipment
Avionics
{{Aviation-stub