A digital micrometer is the easiest to read as it displays the exact reading on a screen.
An imperial micrometer can measure to within 0.001in (1000th of an inch).
Yes. An inside micrometer or bore micrometer can be used for measuring the bore of a machined cylinder.
I assume that you are enquiring about a 'micrometer', the precision measuring instrument, as opposed to a 'micrometre' (to use the British spelling), which is an SI unit for distance? I guess this sums up the problem with the US spelling!A micrometer has no particular disadvantages -it does exactly what it is designed to do. I suppose you could say that you have to be taught how to read a micrometer is a 'disadvantage', but this is true for most analogue instruments. However, there are digital micrometers which overcome this difficulty.
The eight (not seven) main parts of an outside micrometer are:FrameBarrelThimbleSpindleAnvilRatchetLockScrew
A micrometer is used to measure very small distances.
The smallest measurement that can be read with a micrometer is typically 0.01 mm or 0.001 cm, depending on the type of micrometer being used. This would have two significant figures in the measurement.
With a micrometer.
69.9
An imperial micrometer can measure to within 0.001in (1000th of an inch).
Put it between two jaw piece micrometer. Screw close movable jaw. And read on a micrometer ruler.
The easiest way is probably using a caliper micrometer.
http://wiki.answers.com/Q/How_do_you_read_a_micrometer_and_caliber"
tezak
The digital micrometer just like the analog micrometer is used to measure thicknesses, diameters, etc. The main difference is that it is easier for the user to read (as is true of most digital vs. analog things).
Difficult to explain without diagrams, but the micrometer relies on an accurate screw which advances the caliper a precise amount with each revolution. So you turn the screw until the object is lightly held, then read the axial scale and add on for the number of screw turns above the nearest scale reading. The most accurate type also have a vernier scale for very small distances. I suggest you look at Wikipedia 'Micrometer' which has a thorough explanation with diagrams.
Micrometer,caliper,weihging scale
1 inch