50
LC= Value of one main scale division Total number of divisions on vernier
One of the main divisions are sub-divisions.
verniya Caliper divisions part shows. "collusion line on a small "collusion line is great.
To take readings with a vernier caliper, first ensure the jaws are closed and check the zero reading for accuracy. Then, open the jaws to fit around the object you want to measure and close them gently until they make contact. Read the measurement by locating the main scale reading just before the zero of the vernier scale, then find the line on the vernier scale that aligns best with a line on the main scale. Add the two values together to get the final measurement.
A vernier caliper is a precision measuring instrument used to measure dimensions such as length, depth, and internal/external diameters with high accuracy. It features a main scale and a sliding vernier scale, allowing for measurements to be taken with a resolution typically of 0.01 mm or 0.02 mm. The vernier caliper can measure both metric and imperial units, making it versatile for various applications in engineering and manufacturing.
The 9 divisions on the main scale correspond to a length equal to 10 divisions on the vernier scale because the 10 divisions on the vernier scale cover a distance that is slightly shorter than the 9 divisions on the main scale. This difference enables the user to make more precise measurements by comparing the alignment of the two scales to determine the measurement with greater accuracy.
The smallest main scale division in a vernier scale with 50 divisions is 1/50th of the main scale division. This is because each division on the vernier scale corresponds to 1/50th of a main scale division, allowing for more precise measurements to be made.
The least count of a vernier scale is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale. This calculation gives the value of one vernier division.
The least count of the vernier caliper is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale. In this case, 1 cm on the main scale is divided into 20 equal parts, so the least count is 1 cm / 20 = 0.05 cm or 0.5 mm.
first find out least count of main circular scale in degrees,then divide least count of main scale by total divisions on cylindrical scale(this cylindrical scale works as vernier scale for fist one,its least count will be in minutes) then further divide least count of cylindrical scale by total divisions of small vernier scale which touches it,(this small scale works as vernier scale for cylindrical scale and its least count will be in seconds).
The value of each main scale divisions is half a degree(30') . The number of vernier scale divisions is 30. 29 main scale divisions are divided into 30 vernier scale divisions (30 VSD = 29 MSD ) Therefore value of 1 VSD = 29/30 MSD. Least Count (L.C.) = 1MSD - 1VSD = 1MSD - 29/30 MSD = 1/30 MSD = 1/30 x 30' (L.C.) = 1' (1 minute)
The vernier scale provides a more precise measurement by showing how much the object has moved past a whole number on the main scale. Since 4 divisions of the vernier scale coincide with one less division on the main scale, each division on the vernier scale represents 1/4 of a division on the main scale. In this case, the total reading would be 35 main scale divisions plus 4 divisions on the vernier scale, giving a total of 35.25 divisions on the main scale. To find the radius of the cylinder, you would measure the circumference with a tape measure or string and then divide that measurement by 2π to find the radius.
We need two readings. One is Main scale reading and the other is vernier scale reading. Main scale reading will be read on the main scale. We need an indicator to read it. Right? The marking ie zero of the vernier is that indicator. So the reading on the main scale which has been just crossed by zero of the vernier is taken as Main scale reading. Now to get VSR, we need vernier scale coincidence. How do we get this? Any one of the divisions of the vernier will be found coincided with some divisions marked on the main scale. We don't worry about that main scale division but we concentrate only on the vernier scale division. This is VSC This VSC is to be multiplied by least count. So VSC x LC gives the VSR Now MSR + VSR gives the accurate reading.
To use the vernier scale, you find the reading on the fixed scale immediately to the left of the pointer, then you look along the sliding scale until you come to the place where the divisions on the fixed and sliding scales match up, and this gives you the subdivision of the main fixed scale divisions. Thus if the fixed scale is divided into mm, you will be able to read 1/10 mm from the vernier. I suggest you look up Wikipedia 'Vernier Scale' which has illustrations of this
The zero error for a Vernier caliper is the systematic error that occurs when the jaws do not exactly close at zero. The reading uncertainty for a Vernier caliper typically depends on the precision of the scale divisions, with the main scale usually indicating whole millimeters and the Vernier scale providing readings to the nearest 0.02 mm.
To find the sensitivity of a vernier caliper, measure the least count of the caliper (typically 0.02 mm) by dividing the smallest division on the main scale by the number of divisions on the vernier scale. For a micrometer, measure the least count (typically 0.01 mm) by dividing the smallest division on the main scale by the number of divisions on the thimble scale. Sensitivity indicates the smallest change in measurement that can be detected by the instrument.
where on the vernier caliper would you read to obtain the vernier scale reading