Instrumentation | Analog Computers

A process control analog computer is composed of electronic modules such as amplifiers, summers, controllers, multipliers, dividers, square and square root devices, lead and lag modules, limiters, and special dead-time devices. These modules are based around the integrated circuit operational amplifier and are interconnected to implement the desired control strategy. The process control analog computer is very reliable, low in cost, and easy to use, but has been made obsolete to some degree by the more versatile digital computer.

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