Micrometer Reading Trainer
Build confidence reading sleeve + thimble scales and applying zero-error correction under exam-style prompts.
Find this activity in your course
Learning objectives
- Assess random, systematic and propagated uncertainties.
- Select and justify measuring instruments by range and precision
A micrometer screw gauge open beside a wire. Drag the thimble to close the spindle on the wire.
- Check
- Turn the thimble until the spindle just touches the object.
Try this
0 of 4 doneClose the micrometer on the wire and enter its thickness to 0.01 mm. (not done yet)
Reading = sleeve reading (including any half-millimetre mark) + thimble division × 0.01 mm.
Read a wire where a half-millimetre mark is showing on the sleeve. (not done yet)
Two turns of the thimble move the spindle 1 mm, so check below the datum line for the half-millimetre mark.
Read three different wires. (not done yet)
Turn on a zero error and give a corrected reading. (not done yet)
Corrected reading = reading shown − zero error. Find the zero error by closing the micrometer with nothing inside.