Least count and vernier resolution (Least count is smallest readable step; vernier LC = one)
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Least count is smallest readable step; vernier LC = one main scale division divided by number of vernier divisions (equal to S−VSD when VSD = (n−1)/n·S).
What each symbol means
| Symbol | What it stands for |
|---|---|
| S | Main scale division (MSD value) |
| n | Number of vernier scale divisions |
| LC_v | Least count of vernier caliper |
When to use this
For screw gauge: LC = pitch / circular scale divisions; zero error must be corrected separately.