Computer control
Posted by mechlook info on February 17th, 2012 11:05 PM | No Comment
It is possible to use computers instead of controller units in the numerical control machine tools thereby replacing much of the conventional N/C hardware with software. Such a machine could be self contained one having its own dedicated mini-computer to ...
Micro processors
Posted by mechlook info on February 17th, 2012 11:05 PM | No Comment
A micro processor can be considered as the control and processing unit of a small computer, capable of handling both arithmetic and logic data under control of a program. It utilizes the technology of the Large Scale Integration (LSI) and ...
Programmable controllers
Posted by mechlook info on February 17th, 2012 11:05 PM | No Comment
The controllers described above use hard-wired logic of conventional electromechanical relays mounted in control panel and requires considerable space, is costly to wire and trouble shooting is also difficult. Modification of program requires change of circuitry which is difficult. Thus ...
Tape Punching
Posted by mechlook info on February 17th, 2012 11:05 PM | No Comment
Tape Punching Machine. The machine is equipped with a keyboard carrying numbered keys similar to those on the typewriter. A sheet of paper is placed in the carriage, and an eight channel tape in the tape punch. The prescribed hole ...
Analogue and Digital Control
Posted by mechlook info on February 17th, 2012 11:04 PM | No Comment
Digital information is numerical information which can change only in discrete amounts. Analogue information can have any value and is not limited to variation in discrete amounts.
Both digital and analogue control systems use punched paper tape or cards as ...