Using a micrometer to measure objects.
Instructions:
- Place the object you want to measure between the Anvil and the Spindle. You can adjust the space by spinning the Thimble.
- After that, look at the Sleeve and the Barrel Scale.
- The first reading, or the course reading is the value of the last fully visible line on the sleeve. The upper part of the sleeve is counts by a whole number; (1, 2, 3, 4, 5…) while the lower part of the sleeve is just 0.5.
- For example, the course reading on the example below is 9.5 mm.
- For example, the course reading on the example below is 9.5 mm.
- Now, look at the reference line. The reference line is the line that’s dividing the sleeve to upper and lower parts. Match the reference line with the closest line on the barrel scale. That’s your second reading, which is called barrel scale reading. The barrel scale is the part near the sleeve that can be rotated. It counts by 0.01 mm. (0.01, 0.02, 0.03, 0.10, 0.23…etc).
- On the example below, the barrel scale reading is 0.09 mm.
- On the example below, the barrel scale reading is 0.09 mm.
- Now that you have the course and barrel scale reading, add them both to get your final reading.
- The two readings on the example given were
- 9.5 mm and 0.09 mm.
- 9.5mm + 0.09mm = 9.59mm.
- The two readings on the example given were
