Theory & Principle
Measurement of small linear dimensions using the pitch ($x$) and circular scale divisions ($n$).
Least Count (LC) = Pitch (x) / Circular Divisions (n) = 0.5 mm / 50 = 0.01 mm
Object Locked in Spindle
Specimen & Coarse Adjustment
Fine Ratchet Adjustment
Reading Formula:
Total = Main Scale Reading (MSR) + (Circular Scale Reading × LC)
Total = Main Scale Reading (MSR) + (Circular Scale Reading × LC)
Experimental Readings & Analysis
| Specimen Object | Reading 1 (mm) | Reading 2 (mm) | Reading 3 (mm) | Mean Thickness / Diameter (mm) |
|---|---|---|---|---|
| Thin Wire | 0.720 | |||
| Steel Ball | 5.240 |
Current Gauge Measurement: 0.00 mm (MSR: 0.0 mm | CSR: 0)