To read a micrometer, first ensure the instrument is calibrated and set to zero. Place the object between the anvil and spindle, then rotate the thimble until it gently contacts the object. Read the measurement by combining the main scale reading (on the sleeve) with the thimble scale reading (where the thimble aligns with the main scale). The main scale typically measures whole millimeters or inches, while the thimble scale provides fractional measurements, usually in hundredths of a millimeter or thousandths of an inch.
69.9
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).
1 inch
A micrometer is equal to exactly 1 micrometer.
A digital micrometer is the easiest to read as it displays the exact reading on a screen.
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.
http://wiki.answers.com/Q/How_do_you_read_a_micrometer_and_caliber"
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.
tezak
in bacteria it ranges from 2 micrometer(E.coli) to 1 micrometer in staphylococcus. Some protists are of size upto 300(Amoeba) micrometer and the smallest virus is of size 0.003 micrometer.
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).
1 inch
.000345 that is just simple math right of the point the places start 10th 100th 1000th and so on read away okay, but, how did you determine the .00345? In other words, hwo do you read the caliber? How did you egt those numbers?
Micrometer is a measuring device. And the measurement accuracy is 0.01 mm. Object to be measured between the left jaw and screw it shut, and the size of the cache line read.