Least count of vernier caliper in mm

Concept: The Vernier principle states that two different scales are constructed on a single known length of line and the difference between them is taken for fine measurements. Determining the least count of Vernier callipers: In the Vernier calliper shown in Fig the main scale divisions (9 mm) are divided into 10 equal parts in the Vernier scale. i.e. One main scale division (MSD) = 1 mm One Vernier scale division (VSD) = 9/10 mm Least count = 1 MSD - 1 VSD = 1 mm - 9/10 mm = 0.1 mm The difference between one MSD and one VSD = 0.1 mm Calculation: LC = 1 MSD – 1 VSD = 1mm – 19/20 mm = 1/20 mm = 0.05 mm

Concept: • The Vernier principle states that two different scales are constructed on a single known length of line and the difference between them is taken for fine measurements. Determining the least count of Vernier callipers: In the Vernier calliper shown in Fig Calculation: Given: One main scale division (MSD) = 0.5mm 24 divisions of main scale = 24× 0.5 = 12 One Vernier scale division (VSD) = 12/25mm Least count = 1 MSD - 1 VSD LC = 1 MSD – 1 VSD = 0.5 mm – 12/25 mm = 0.02 mm