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Quick Summary

A caliper is a measuring instrument with adjustable legs or jaws used to determine dimensions like diameter or thickness. There are different types, including spring calipers and firm-joint calipers, each with specific uses. Outside calipers measure external dimensions, while inside calipers measure internal spaces.12

In papermaking, caliper refers to the thickness of paper or paperboard, measured in fractions of a millimeter or inch under steady pressure. This measurement, along with basis weight, helps determine the paper's density.3

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  1. caliper
  2. caliper
  3. papermaking - Substance and quantity measurement

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