Measurement System Basics

What is Measurement?

On this website, "measurement" refers to the numeric expression of a manufactured object's dimensions based on a fixed reference (unit). Simply explained, dimensional measurement is the comparison of the measurement target against a reference object. The reference object is the measuring instrument, and there is a wide variety of measuring instruments that offer different measurement purposes, methods, and accuracy levels. It is possible to "inspect" whether a manufactured object fits the required specifications (tolerance) by correctly measuring the object's dimensions. In other words, performing thorough measurements is one of the basic rules of better manufacturing.

Correct measurement is a basic rule of inspection
Correct measurement is a basic rule of inspection

Arrows represent tolerance.

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