A vernier scale is a secondary scale that allows for more precise readings on a main scale, typically found on devices like calipers. A micrometer, on the other hand, is a precision measuring instrument that uses a rotating spindle to accurately measure small distances, often to within thousandths of an inch or hundredths of a millimeter. In essence, a vernier scale is a type of scale used for additional precision, while a micrometer is a standalone measuring tool.
The micrometer caliper is generally more accurate in measuring the density of an object compared to the vernier caliper. This is because the micrometer caliper has a higher precision and can measure with greater accuracy, typically up to 0.01mm.
In case for micrometer, principle of pitch is used. Least count could be even micro meter But in vernier caliper, difference of main scale division and vernier scale division is the principle Least count could be 0.02 mm
A typical micrometer screw gauge has a maximum accuracy of ±0.005 mm (0.01 mm readings) whereas a vernier caliper has a typical maximum accuracy of ±0.05 mm (0.1 mm readings). Of course, different versions might have better or worse accuracy. They are also used differently because of their different shapes and forms.
To read a measurement on a micrometer, observe the main scale and the Vernier scale. The main scale represents the whole millimeters, while the Vernier scale indicates the fraction of a millimeter. The measurement is obtained by combining the values shown on both scales where they align.
In vernier calipers, zero error is when the jaws of the caliper do not close properly when they are in contact without measuring anything, resulting in a measurement that is not accurate. In a micrometer screw gauge, zero error occurs when the flat end of the spindle does not perfectly align with the reference line on the sleeve at zero reading, leading to inaccurate measurements.
*Micrometer have a rotary handle and whereas vernier have a slider. *Micrometer is for measuring diameters while vernier is for measuring inside & outside diameter as well as depth. *Least Count of Vernier Caliper is 0.02mm *Least Count of Micrometer is 0.01mm
It is the scale on a micrometer.
.001
Micrometer or vernier caliper
Standard is 0.01 mm
The micrometer caliper is generally more accurate in measuring the density of an object compared to the vernier caliper. This is because the micrometer caliper has a higher precision and can measure with greater accuracy, typically up to 0.01mm.
The most compelling reason to select the micrometer Screw over the Vernier caliper is the guarantee that when measuring a flexible surface, the same amount of pressure is applied between samples. The Vernier caliper has the ability to measure internal and externally, but if precision is required, the micrometer screw is the tool of choice.
micrometer conforms to abbe's principle because the graduations are located along the same axis as the measurement while vernier caliper does not because the graduations are not on the same axis as the measurement.
Micrometer and Vernier
Vernier calipers are used to measure length when quite accurate measurement is required, but not such accuracy as to require a micrometer.
LC FOR VERNIER CALIPER-0.1mm LC FOR MICROMETER -0.01 mm L.C- NO OF SMALLEST DIVISION ON MAIN SCALE ------------------------------------------------------- TOTAL NO OF DIVISION ON VERNIER SCALE
LC FOR VERNIER CALIPER-0.1mm LC FOR MICROMETER -0.01 mm L.C- NO OF SMALLEST DIVISION ON MAIN SCALE ------------------------------------------------------- TOTAL NO OF DIVISION ON VERNIER SCALE