Machine Language
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The lowest-level programming language (except for computers that utilize programmable microcode) Machine languages are the only languages understood by computers. While easily understood by computers, machine languages are almost impossible for humans to use because they consist entirely of numbers. Programmers, therefore, use either a high-level programming language or an assembly language. An assembly language contains the same instructions as a machine language, but the instructions and variables have names instead of being just numbers.
Source: Xilinx
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Machine Vision
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The automatic acquisition and analysis of images to obtain desired data for controlling a specific activity.
Source: Coreco
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Machine Vision System
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A system capable of acquiring one or more images using an optical noncontact sensing device capable of processing, analyzing and measuring various characteristics so decisions can be made.
Source: Coreco
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Macro
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Pre-defined function that designers can drop into their design, e.g. a counter or adder.
Source: Xilinx
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Macro Block
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A block of standard cells and hard IP that has previously been automatically placed and routed, turning the macro block into a higher level hard-IP block that can go into a cell library.
Source: EDN Magazine
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Magnetic Field Strength
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(H) -
A radiated wave’s current gradient measured in amperes/m.
1 A/m = 0.0125 oersteds
1 oersted = 79.6 A/m
Source: eEngineer
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Magnetic Flux
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1 weber = 108 Maxwell = 108 Lines.
Source: eEngineer
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The magnetic lines of force produced by a magnet.
Source: Twisted Pair
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Magnetic Flux Density
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(B) -
Tesla (T) = 1 weber/m2 = 104 gauss.
1 gauss = 1 line/cm2 = 1 maxwell/cm2 = 7.936 x 105 A/m.
Source: eEngineer
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Magnetism
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Property of some materials to attract or repel others.
Source: Twisted Pair
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Magnification
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The enlargement of an object through the lens system. This is determined by multiplying the magnifying power of the objective by the eyepiece.
Source: FRT of America
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Magnifying Power
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It is the number of times the image is seen through the microscope is larger than the item appears to the unaided eye.
Source: FRT of America
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Main Bang
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The pulse applied to the piezoelectric element to generate ultrasound.
Source: Sonoscan
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Maintainability
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A characteristic of design and installation that provides inherently for the system to be retained or restored to a specified condition within a given time when the maintenance is performed using prescribed procedures and resources.
Source: Army Regulation 700–127, Integrated Logistics Support
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The ease with which maintenance can be performed on a hardware or software system or component to correct faults, improve performance. It is important for initial maintainability studies to be performed early in the design process to influence the design.
Source: Prognostics and Health Management
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Maintenance
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Is all action taken to retain materiel in, or restore it to, a specified condition. It includes: inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation.
Source: UK Defence Standard 00-49
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Maintenance Hours per Life Unit
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The maintenance hours required divided by the appropriate life unit.
Source: Testability.com
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Maintenance Levels
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The basic levels of maintenance into which all maintenance activity is divided. The scope of maintenance performed within each level must be commensurate with the personnel, equipment, technical data, and facilities provided.
Source: DoD Logistic Support Analysis MIL Standard
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Maintenance Planning
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Establishing a maintenance structure for a system. Source selection authority (including RCM) and maintenance engineering are used to provide an effective and economical framework for the specific maintenance requirements of the system.
Source: Army Regulation 700–127, Integrated Logistics Support
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Maintenance Ratio
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A measure of the total maintenance manpower burden required to maintain a system. The ratio is expressed as the cumulative number of manhours of maintenance expended divided by the cumulative number of end item operating hours during the same time.
Source: Testability.com
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Maintenance Schedule
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A predetermined schedule, set of intervals, or by which maintenance events are carried out. Also called Scheduled Maintenance.
Source: Testability.com
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Maintenance Turn Time
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The time required to service and return to a system to mission-ready. This includes any setup required to prepare the system for its next mission.
Source: Testability.com
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