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micro-adjuster
micro-adjuster Small permanent magnets arranged to
correct magnetic compass for coefficients P, Q, Cz, Fz.
Micro-aids Micro-aircraft integrated data system.
micro air vehicle Rapidly growing species of aerodyne,
using lift from jets, rotating wings or fans, or fixed wing[s],
capable of being carried by a human and of carrying
various payloads. No quantified definition.
microballoons Microscopic hollow spheres used to
increase bulk of fillers and potting compounds.
microbarograph Records very small transient changes in
atmospheric pressure at ground station.
microbiological corrosion Eating away by micro-organisms
living at fuel/air interfaces and on surface of virtually
all aeronautical materials.
microbolometer Bolometer able to measure microscopic
regions (no numerical definition).
microburst Most lethal form of vertical gust, in which
core up to 2.5 km (1.5 miles) diameter forms vertical jet
below convective cloud with downward velocity up to
20 m/s (4,000 ft/min), an almost instantaneous velocity
difference of 80 kt, down to very low levels.
microchannel plate Multiplies [ c10 5 ] electrons passing
through and routes them to phosphor screen which
converts to green light.
microcircuit Basic element of microelectronics, with
numerous * fabricated on each epitaxial chip.
Micro-Earts Micro en route automated radar tracking
system.
microelectronics Electronics based on solid-state devices
of microscopic [down to nanometre] dimensions.
microfabrication Manufacture of microscopic [to
nanometre] devices.
microfarad Farad 10 –6 , symbol µF.
microfiche Common system of storing written or visual
information with 24 to 288 microfilmed pages on each
100 mm × 150 mm (or 4 in × 6 in) sheet of film.
microflume Microfluidic molecular system.
microflyer Surveillance aircraft with no dimension
exceeding 6 in (152.4 mm), TOW 4 oz (113.4 g).
microgravity Gravitational acceleration in the region of
10 -6 g. Clearly this is not the same as free fall, but some
hold that * is experienced in parabolic flight and in planetary
orbit.
microinch One millionth of an inch.
microjet Not defined, but commonly a bizjet with six or
fewer total seats. It is confusing to use * for sporting 1– or
2– seaters
microkernel Core of software.
micro level Critical final design of software.
microlight Originally aeroplane with OWE 150 kg
(330.7 lb), next definition was MTOW 390 kg, 50 litres
fuel; latest definition: V so 65 km/h, MTOW, 1-seat
300 kg [land], 330 kg [sea/amph]; 2-seat 450 kg [land],
495 kg [sea/amph]. (JAA, FAA). See ultralight.
micrometeorite Microscopic solid particle, many species
throughout explored space.
micrometer Instrument for precise dimensional
measurement, usually mechanical but sometimes based
on fluid escape through small clearance.
micrometre One-millionth of metre, 10 –6 m, symbol µ.
micromirror Microscopic multilayer reflective device,
usually comprising an array of CMOS memory cells. Each
mirror can tilt slightly, pointing a beam at an on or an off
pixel.
midcourse
micron Previous name for micrometre, still common in
US to avoid confusion with micrometer.
micronavigation Guidance of aircraft or missile in
relation to nearby target (usually air/ground).
micronic Concerned with micron dimensions, hence *
filter.
micronlitre Quantity of gas: 1 litre at pressure 1 µHg.
microprobe Instrument for investigating regions of
micron size, hence laser-pulse * analyser.
microprogram Small sub-program for defining
computer instructions in terms of other basic elemental
operations.
microsatellite Mass 10–100 kg.
microsecond 10 –6 s.
microshaving Precision-machining heads of driven
countersunk rivets.
microspark coating A micropulse discharge deposits
sintered metal or ceramic.
microstrip Microwave guide comprising conductor
supported above ground plane, generally fabricated by
printed circuitry.
microswitch Miniature electric switch governing
system(s) according to external movement such as
compression of MLG.
microtacan Microelectronic Tacan.
microtechnology Has come to mean manufacture at the
molecular level, including Mems, microfabrication,
nanotechnology, microfluidics and even DNA arrrays.
Microvision All-weather landing aid (Bendix) with
pulsed beacons along runway energising pattern on
HUD.
microwave background Found throughout universe,
corresponding to temperature of 2.7K.
microwave landing system Post-1995 successor to ILS,
TRSB (US) being political choice. Guides over ±40°
sector landing or overshoot.
microwaves Electromagnetic radiation between RF and
far-IR, normally 1–300 GHz.
MICS Manned interactive control station.
mic-tel socket Connector for headset.
MID 1 Multifunction information distribution.
2 Maritime identification digits.
3 Middle.
4 Middle East (ICAO).
Mida Message interchange distributed application.
midair Midair collision.
Midas 1 Missile-defense alarm system (USA, USAF).
2 Manufacturing information distribution and acquisition
system.
3 Multiplexer integration and digital [comsat
subsystem] automation system.
4 Multifunction IR distributed-aperture system.
5 Multifunction integrated defensive avionics system.
6 Mobile instrumented data-acquisition system.
7 Multi-user interactive development and analysis
system.
8 See MIDS(4).
MiDASH, Midash Modular integrated display and
sight helmet.
midcourse 1 Space trajectory linking departure from
neighbourhood of Earth and arrival near destination,
corresponding to atmospheric flight cruise; hence * guidance.
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