There are 2 things that can be called a micrometer:
1/ A device for measuring short distances accurately. Typically to better than 1 thousands of an inch (thou) or 0.01mm. They look a bit like a small G clamp, something is placed between the jaws and it is lightly tightened, the thread has a gauge on it so you can see how big the thing between the jaws is.
2/ A very small distance, 1 millionth of a meter. Also written μm. (Or sometimes um.)
Additional Information
The above answer needs to be qualified. In fact, the above answer only applies to American English. In British English,
1. A micrometer is an instrument for measuring small thicknesses or diameters, as per answer 1, above.
2. The unit of measure is called a micrometre.
In other words, in British English, a meter is a measuring instrument, whereas a metre is a unit of measurement.
A micrometer is a precision instrument for measuring small distances, such as the thickness of metal sheets, diameter of conductors, etc.
In American English, it is also the spelling for one-millionth of a metre. In British English, this is spelt micrometre.
Micrometry is the making of measurements in microns (millionths of a meter).
an awkward way of saying nanometer (1x10-9 meters).
A micrometer, most likely. That's a millionth of a meter - or a thousandth of a millimiter. Also known as a micron.
It is a very accurate gauge used mainly for measuring wear on small machinery parts.
to measure the outside diameter
One millionth
no
Yes. An inside micrometer or bore micrometer can be used for measuring the bore of a machined cylinder.
The eight (not seven) main parts of an outside micrometer are:FrameBarrelThimbleSpindleAnvilRatchetLockScrew
An imperial micrometer can measure to within 0.001in (1000th of an inch).
A digital micrometer is the easiest to read as it displays the exact reading on a screen.
A micrometer is used to measure very small distances.
A micrometer is equal to exactly 1 micrometer.
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"What is the advantages of using micrometer?
The abbreviation for micrometer is µm
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1000000 micrometer
1 micrometer = 0.0000001 meter 1 meter = 1000000 micrometer
Micrometer, hence the suffix micro
A meter is larger than a micrometer.
The abbreviation for micrometer is mic. (Pronounced as Mike)