The reading principle is: the length of several divisions on the vernier is equivalent to the length of (n-1) divisions on the dial (or ruler), so the difference between each {1-1} division value and each division value of the dial (or ruler) (called the minimum reading of the vernier) can be used to calculateEgressThe number of zeros less than one division on the plate (or ruler).When its indicator moves along the dial (or ruler) to a certain division, the integer on the dial (or ruler) can be read out according to the indicator position;Then find out the number of the dividing line overlapping the vernier and the dial (or ruler), and multiply it by the minimum reading of the vernier to get the zero number less than one dividing line;The whole reading of the dial (or ruler) indicated by the index is the zero plus an integer.
Chinese name
cursor
Foreign name
Cursor
Classification
Database concept
Disadvantages
When the amount of data is large, the memory occupied speed is slow
Product Introduction
vernier
It's earlySurveying and mapping instrumentCommonly used onMicrometer equipment。For measurementMain rulerA zero less than one division above.It is engraved with indicatorsScoreAnd mark the score and the number of dashes.Separable:Read Forward CursorandReverse reading cursorTwo.
