Micrometer - определение. Что такое Micrometer
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Что (кто) такое Micrometer - определение

Найдено результатов: 26
Micrometer         
WIKIMEDIA DISAMBIGUATION PAGE
Micrometer (disambiguation)
An instrument for measuring small distances or small differences. It generally is based upon an accurate screw which may have a worm wheel for head, actuated by a worm or helix with graduated head, so that exceedingly small advances of the screw may be produced. The pitch of the screw being known its actual advance is known.
Micrometer         
WIKIMEDIA DISAMBIGUATION PAGE
Micrometer (disambiguation)
·noun An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass.
micrometer         
WIKIMEDIA DISAMBIGUATION PAGE
Micrometer (disambiguation)
[m??'kr?m?t?]
¦ noun a gauge which measures small distances or thicknesses.
Derivatives
micrometry noun
Ocular micrometer         
  • Micrometer Eyepiece
DEVICE USED TO MEASURE SIZE OF MICROSCOPIC OBJECTS
Micrometer eyepiece
An ocular micrometer is a glass disk that fits in a microscope eyepiece that has a ruled scale, which is used to measure the size of magnified objects. The physical length of the marks on the scale depends on the degree of magnification.
Micrometer (device)         
  • Imperial unit micrometer thimble showing a reading of 0.2760 in. The main scale reads 0.275 in (exact) plus 0.0010 in (estimated) on the secondary scale (the last zero is an estimated tenth). The reading would be 0.2760 ± 0.0005 in, which includes plus/minus half the width of the smallest ruling as the error. Here it has been assumed that there is no zero point error (often untrue in practice).
  • Vernier micrometer reading 5.783 ± 0.001 mm, comprising 5.5 mm on main screw lead scale, 0.28 mm on screw rotation scale, and 0.003 mm added from vernier.
  • Micrometer thimble with a reading of <!--DO NOT CHANGE TO 5.78. IF YOU ZOOM IN YOU CAN CLEARLY SEE THE ESTIMATED TENTH IS BETTER AT 9 THAN 0. ALSO THE READING WOULD BE 5.780, NOT 5.78!-->5.779&nbsp;±&nbsp;0.005&nbsp;mm. (You must enlarge the image to be able to read the scale to its fullest precision.) The reading consists of exactly 5.5&nbsp;mm from the main scale plus an estimated 0.279&nbsp;mm from the secondary scale.<!--Note the '9' is an estimated tenth. Although it would not be unreasonable to claim a reading of 0.280 mm for the secondary scale, close inspection shows the main scale line does not quite reach 0.280 mm, making 0.279 mm the best but even 0.278 mm is not unreasonable. These two alternative readings would be expressed as 5.780 mm and 5.778 mm. Expressing the result as 5.78 mm is incorrect unless there's reason not to use the instrument's full precision to measure the object.--> Assuming no zero error, this is also the measurement.
  • 1667}}
  • Another large micrometer in use
  • Modern micrometer with a reading of <!--DO NOT CHANGE THIS TO 1.640. MAKE SURE YOU ZOOM IN TO SEE THE READING. IF YOU STILL THINK 1.640 IS CORRECT, IT MEANS YOU MISUNDERSTAND HOW TO READ A MICROMETER!-->1.639&nbsp;±&nbsp;0.005&nbsp;mm. (Note you must enlarge the image to properly read the instrument.) Assuming no zero error, this is also the measurement.
  • Large micrometer caliper, 1908
  • fractional]] [[inch]] measurements and their [[decimal]] equivalents.
  • Animation of a micrometer in use. The object being measured is in black. The measurement is 4.140&nbsp;±&nbsp;0.005&nbsp;mm.
DEVICE INCORPORATING A CALIBRATED SCREW
Micrometer screw; Micrometer screw gauge; Micrometer (measuring instrument); Vernier micrometer; Micrometre (caliper); Micrometre (calliper); Micrometre (screw gauge); Micrometre screw gauge; Micrometre screw; Vernier micrometre; Micrometre (measuring instrument)
A micrometer, sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for accurate measurement of componentsEncyclopedia Americana (1988) "Micrometer" Encyclopedia Americana 19: 500 (set) in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers. Micrometers are usually, but not always, in the form of calipers (opposing ends joined by a frame).
micron         
  • 300px
  • How big is 1 micrometre?
ONE MILLIONTH OF A METRE
Micrometers; Micrometres; Μm; Micrometer (unit); Microscale; Microns; Micron; ㎛; Mü (unit of length); Mue (unit of length); Mu (unit of length)
Micron         
  • 300px
  • How big is 1 micrometre?
ONE MILLIONTH OF A METRE
Micrometers; Micrometres; Μm; Micrometer (unit); Microscale; Microns; Micron; ㎛; Mü (unit of length); Mue (unit of length); Mu (unit of length)
Micron         
  • 300px
  • How big is 1 micrometre?
ONE MILLIONTH OF A METRE
Micrometers; Micrometres; Μm; Micrometer (unit); Microscale; Microns; Micron; ㎛; Mü (unit of length); Mue (unit of length); Mu (unit of length)
A unit of length. It is one-millionth of a meter or four one-hundred-thousandths of an inch.
micrometre         
  • 300px
  • How big is 1 micrometre?
ONE MILLIONTH OF A METRE
Micrometers; Micrometres; Μm; Micrometer (unit); Microscale; Microns; Micron; ㎛; Mü (unit of length); Mue (unit of length); Mu (unit of length)
['m??kr?(?)?mi:t?]
(US micrometer) (abbrev.: ?m)
¦ noun one millionth of a metre.
micrometre         
  • 300px
  • How big is 1 micrometre?
ONE MILLIONTH OF A METRE
Micrometers; Micrometres; Μm; Micrometer (unit); Microscale; Microns; Micron; ㎛; Mü (unit of length); Mue (unit of length); Mu (unit of length)
<unit> (Or "micron") One millionth of a metre. The symbol is a Greek letter mu followed by "m". Features on modern integrated circuits are typically measured in microns. The smallest features in 1999 are around 0.1 microns across. (1999-09-28)

Википедия

Micrometer