| Term | Definition |
|---|---|
| Machine vision |
1) A computer perception of a visually based sensory output used to produce a concise description of an image. 2) Devices used for optical non-contact sensing to receive and interpret automatically an image of a real scene in order to obtain information or to control a process. |
| Macro |
A kind of computer shorthand that reduces many commands to one, making it easy to activate frequently-used functions. |
| Magnetic contactor |
A device used to open or close. |
| Make-to-order |
products manufactured to specific customer order configuration and delivery time specifications. |
| Make-to-stock |
products manufactured for finished-goods storage before a customer order arrives. |
| Management by Fact |
A key focus of total quality management. Means all employees manage the work they do by collecting objective data and making decisions based on this information. |
| Manual Reset (Adjustment) |
The adjustment on a proportioning controller which shifts the proportioning band in relationship to the set point to eliminate droop or offset errors. |
| Manual Reset (Switch) |
The switch in a limit controller that manually resets the controller after the limit has been exceeded. |
| MAP |
Manufacturing Automation Protocol is a specification for a suite of communication standards developed initially by General Motors and based on the OSI reference model. |
| Mass Flow Rate |
Volumetric flowrate times density, i.e. pounds per hour or kilograms per minute. |
| Materials handling |
the process, which includes mechanical handling, of transporting and positioning raw materials, semi-finished and finished products in connection with industrial operations, by conveyors, cranes, trucks, hopper feeds, and other equipment. |
| Maximum Operating Temperature |
The maximum temperature at which an instrument or sensor can be safely operated. |
| MES |
Manufacturing Execution Systems are plant-floor management systems that allow downloading recipes and work schedules, and uploading production results, thereby bridging the gap between business and plant-floor or process control systems. |
| Milliamp |
One thousandth of an amp, 10-3 amps, symbol mA. |
| Millivolt |
Unit of electromotive force. It is the difference in potential required to make a current of 1 millampere flow through a resistance of 1 ohm; one thousandth of a volt, symbol mV. |