{"id":2380,"date":"2026-11-03T15:21:21","date_gmt":"2026-11-03T08:21:21","guid":{"rendered":"https:\/\/gerahitech.vn\/?p=2380"},"modified":"2026-11-03T15:32:36","modified_gmt":"2026-11-03T08:32:36","slug":"do-chinh-xac-va-do-lap-lai-doanh-nghiep-can-dieu-gi-o-he-thong-do-luong","status":"publish","type":"post","link":"https:\/\/gerahitech.vn\/en\/do-chinh-xac-va-do-lap-lai-doanh-nghiep-can-dieu-gi-o-he-thong-do-luong\/","title":{"rendered":"Accuracy vs Repeatability: What Do Manufacturers Really Need from a Measurement System?"},"content":{"rendered":"

<\/p>\n

n industrial measurement, accuracy<\/strong> and repeatability<\/strong> are two different concepts. A measurement may land close to the reference value, but that alone does not prove the measurement system performs consistently. This article explains the difference between the two and why manufacturers should care about both.<\/p>\n

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What Is Accuracy?<\/h3>\n

Accuracy<\/strong> describes how close a measurement result is to a reference value (or an accepted value). It is a key indicator for evaluating measurement error<\/strong>. The concept is described in detail in the ISO 5725<\/a> standard and in this reference on accuracy and precision<\/a>.<\/p>\n

What Is Repeatability?<\/h3>\n

Repeatability<\/strong> is the ability to reproduce similar results when a measurement is taken multiple times under the same conditions: the same method, the same equipment and the same operator. High repeatability means the measurement system delivers consistent results from one measurement to the next.<\/p>\n

Why Do Manufacturers Need Both Accuracy and Repeatability?<\/h3>\n

If the same part is measured several times and produces different results, the QC\/QA team will struggle to identify the true root cause:<\/p>\n