All Topics  
Micrometre

 

 
   Email Print
   Bookmark   Link
 

 

Micrometre
 
 
  Topics Micrometre Topic Home

A micrometre or micron (American spelling: micrometer; symbol µm) is one millionth of a metre
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
, or equivalently one thousandth of a millimetre
Millimetre

The millimetre is a Units of measurement of length in the metric system, equal to one thousandth of a metre, which is the current International System of Units SI base unit of length....
. It is also commonly known as a micron
Micron

Micron can refer to:*Micron, a micrometre, a unit of length in the metric system: one millionth of a metre*Micron or millitorr, a micrometre of mercury , a unit of pressure in vacuum engineering...
. It can be written in scientific notation
Scientific notation

Scientific notation, also known as standard form or as exponential notation, is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation....
 as 1×10−6 m, meaning .

Human hair is 100 µm wide. Red blood cells are 7 µm in diameter.

The micrometre is a common unit of measurement
Measurement

Measurement is the process of assigning a number to an attribute according to a rule or set of rules. The term can also be used to refer to the result obtained after performing the process....
 for wavelength
Wavelength

In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek language letter lambda ....
s of infrared radiation.






Discussion
Ask a question about 'Micrometre'
Start a new discussion about 'Micrometre'
Answer questions from other users
Full Discussion Forum



Encyclopedia


A micrometre or micron (American spelling: micrometer; symbol µm) is one millionth of a metre
Metre

The metre or meter is a Unit of measurement of length. It is the SI base unit of length in the metric system and in the International System of Units , used around the world for general and scientific purposes....
, or equivalently one thousandth of a millimetre
Millimetre

The millimetre is a Units of measurement of length in the metric system, equal to one thousandth of a metre, which is the current International System of Units SI base unit of length....
. It is also commonly known as a micron
Micron

Micron can refer to:*Micron, a micrometre, a unit of length in the metric system: one millionth of a metre*Micron or millitorr, a micrometre of mercury , a unit of pressure in vacuum engineering...
. It can be written in scientific notation
Scientific notation

Scientific notation, also known as standard form or as exponential notation, is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation....
 as 1×10−6 m, meaning .

Human hair is 100 µm wide. Red blood cells are 7 µm in diameter.

The micrometre is a common unit of measurement
Measurement

Measurement is the process of assigning a number to an attribute according to a rule or set of rules. The term can also be used to refer to the result obtained after performing the process....
 for wavelength
Wavelength

In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek language letter lambda ....
s of infrared radiation. Some people (especially in astronomy
Astronomy

Astronomy is the science of Astronomical object and Phenomenon that originate outside the Earth's atmosphere . It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the physical cosmology....
 and the semiconductor
Semiconductor

A semiconductor is a material that has electrical conductivity between those of a Electrical conductor and an electrical insulation; it can vary over that wide range either permanently or dynamically....
 industry) use the old name micron and/or the solitary symbol µ (both of which were official between 1879 and 1967 ) to denote a micrometre. This practice persists in the face of official discouragement, perhaps to help disambiguate between the unit of measurement and the micrometer
Micrometer

A micrometer , sometimes known as a micrometer screw gauge, is a device used widely in mechanical engineering and machining for precisely measuring, along with other Metrology instruments such as Caliper#Dial calipers and Caliper#Vernier caliper....
, a measuring device.

See also

  • 1 E-6 m
    1 E-6 m

    To help compare different orders of magnitude this page lists some items with lengths between 10−6 and 10−5 metre ....
     (for a comparative description of the micrometre in the context of other orders of magnitude)
  • SI
    Si

    Si, si, or SI may refer to :...
  • SI prefix
    SI prefix

    An SI prefix is a name or associated symbol that precedes a basic unit of measure to form a decimal multiple . The abbreviation SI is from the French language name Syst?me International d?Unit?s ....
  • Metric system
    Metric system

    The metric system is an international decimalised systems of measurement, founded by France in 1791, that is the common system of Unit of measurement used by most of the world....
  • Orders of magnitude
  • Micronization
  • µ