1. A multifunction test meter, measuring volts, ohms, and amperes. Also known as set analyzer. 2. The component of an absorption refrigeration system where the mixture of water vapor and ammonia vapor leaving the generator meets the relatively cool solution of ammonia in water entering the generator and loses some of its vapor content.
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GEARBOXA system of gears which alter the ratio between the revolution of the engine and the propeller shaft so the propeller operates in a relatively efficient speed range. By using a gearbox the engine and the propeller shaft will revolve at different speeds. |
DISTORTION
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DEAD TIME
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POLE-POSITIONING
A design technique used in linear control theory in which many or all of a system's closed-loop poles are positioned as required, by proper choice of a linear state feedback law; if the system is controllable, all of the closed-loop poles can be arbitrarily positioned by this technique.
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PNEUMATIC WEIGHING SYSTEM
A system for weight measurement in which the load is detected by a nozzle and balanced by modulating the air pressure in an opposing capsule.
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PLENUM SYSTEM
A heating or air conditioning system in which air is forced through a plenum chamber for distribution to ducts.
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PLANT DECOMPOSITION
The partitioning of a large-scale control system into subsystems along lines of weak interaction.
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PIECEWISE LINEAR SYSTEM
A system for which one can divide the range of values of input quantities into a finite number of intervals such that the output quantity is a linear function of the input quantity within each of these intervals.
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PHOTOELECTRICLOOPCONTROL
[CONTSYS] Aphotoelectric control system used as a position regulator for a loop of material passing from one stripprocessing line to another that may travel at a different speed. Also known as loop control.
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PHOTOELECTRIC SORTER
A photoelectric control system used to sort objects according to color, size, shape, or other light-changing characteristics.
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