2006-09-09 01:32:14 · 11 answers · asked by sweet_ s 1 in Science & Mathematics ➔ Earth Sciences & Geology
A micrometer is a widely used device in mechanical engineering for precisely measuring thickness of blocks, outer and inner diameters of shafts and depths of slots. Appearing frequently in metrology, the study of measurement, micrometers have several advantages over other types of measuring instruments like the Vernier caliper - they are easy to use and their readouts are consistent.
Types
The image shows three common types of micrometers, the names are based on their application:
* External micrometer
* Internal micrometer
* Depth micrometer
An external micrometer is typically used to measure wires, spheres, shafts and blocks. An internal micrometer is used to measure the opening of holes, and a depth micrometer typically measures depths of slots and steps.
The precision of a micrometer is achieved by a using a fine pitch screw mechanism.
An additional interesting feature of micrometers is the inclusion of a spring-loaded twisting handle. Normally, one could use the mechanical advantage of the screw to force the micrometer to squeeze the material, giving an inaccurate measurement. However, by attaching a handle that will ratchet at a certain torque, the micrometer will not continue to advance once sufficient resistance is encountered.
2006-09-09 01:53:01 · answer #1 · answered by Anonymous · 0⤊ 0⤋
1 x 10^-6 m.
2006-09-09 08:41:34 · answer #2 · answered by Juan D 3 · 0⤊ 0⤋
One millionth of a metre.
Where a metre is the distance travelled by light in a vaccum in 1/299,792,458 of a second.
2006-09-09 08:43:46 · answer #3 · answered by yasiru89 6 · 0⤊ 0⤋
1 meter = 1,000,000 micrometre
2006-09-09 08:48:13 · answer #4 · answered by m.urz.14 2 · 0⤊ 0⤋
we have a canadian or british in the house. It's 10^-6 of a metre.
2006-09-09 08:37:36 · answer #5 · answered by Natasha B 4 · 0⤊ 0⤋
One millionth of a metre
2006-09-12 20:26:59 · answer #6 · answered by Kamran 3 · 0⤊ 0⤋
A micrometer can be a very small distance or a tool to measure very small distances.
2006-09-09 08:39:27 · answer #7 · answered by Anonymous · 0⤊ 0⤋
is one millionth of a metre. It is also known as a micron, although that unit is officially outdated
2006-09-09 16:44:55 · answer #8 · answered by Geo06 5 · 0⤊ 0⤋
a millionth of a meter
also known as a micron
usually spelled "micrometer" with the "e" and the "r" the right way around
2006-09-09 08:34:39 · answer #9 · answered by Orinoco 7 · 0⤊ 2⤋
a micrometer is a tool for measuring small dimensions.
2006-09-09 08:51:59 · answer #10 · answered by ziad 2 · 0⤊ 0⤋