.~ With protective or reliability increasing features (e.g., "fail-safe" systems) {3}
565
.~.~ Monitoring systems
DEFINITION
Classification: 318/565
(under subclass 563) Subject matter in which the system includes one or more elements whose sole function is to test or monitor the performance of similar elements in the servo loop and to disable the servo upon a failure of one of the similar elements.
(1) Note. For example, a system operating in response to the amplified output of a first gyro may be provided with a second gyro and amplifier, which first gyro system is disabled when the output from the second amplifier differs substantially from the system output.
SEE OR SEARCH CLASS
244, Aeronautics,
77, for autopilots with monitoring control.
340, Communications: Electrical,
648, for motor condition responsive indicating systems.
