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Related Terms

PILOT WIRE REGULATOR

Automatic device for controlling adjustable gains or losses associated with transmission circuits to compensate for transmission changes caused by temperature variations, the control usually depending upon the resistance of a conductor or pilot wire having substantially the same temperature conditions as the conductors of the circuits being regulated.

PICKOFF

1. A device used to convert mechanical motion into a proportional electric signal. 2. A mechanical device for automatic removal of the finished part from a press die.

OMNIGRAPH

An automatic acetylene cutter controlled by a mechanical pointer that traces a pattern; capable of cutting several duplicates simultaneously.

OMNIBEARING INDICATOR

An instrument providing automatic and continuous indication of omnibearing.

MONITOR

1. An instrument used to measure continuously or at intervals a condition that must be kept within prescribed limits, such as radioactivity at some point in a nuclear reactor, a variable quantity in an automatic process control system, the transmissions in a communication channel or bank, or the position of an aircraft in flight. 2. To use meters or special techniques to measure such a condition. 3. A person who watches a monitor.

MACHINE CONTROLLED TIME

The time necessary for a machine to complete the automatic portion of a work cycle. Also known as independent machine time; machine element; machine time.

LOCKING

1. Controlling the frequency of an oscillator by means of an applied signal of constant frequency. 2. Automatic following of a target by a radar antenna.

LIMITER

An electronic circuit used to prevent the amplitude of an electronic waveform from exceeding a specified level while preserving the shape of the waveform at amplitudes less than the specified level. Also known as amplitude limiter; amplitude-limiting circuit; automatic peak limiter; clipper; clipping circuit; limiter circuit; peak limiter.

LEARNING CONTROL

A type of automatic control in which the nature of control parameters and algorithms is modified by the actual experience of the system.

KNOCK-OFF

1. The automatic stopping of a machine when it is operating improperly. 2. The device that causes automatic stopping.

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