Gr&r

Source: Internet
Author: User

ANOVA Gauge R&r (or ANOVA gauge repeatability and reproducibility) is a measurement systems analysis technique this uses an analy SIS of variance (ANOVA) random effects model to assess a measurement system.

NOVA Gauge R&r measures the amount of variability induced in measurements by the measurement system itself, and Compar Es it to the total variability observed to determine the viability of the measurement system. There is several factors affecting a measurement system, including:

    • measuring Instruments, the gauge or instrument itself and all mounting blocks, supports, fixtures, load cells, et C. The machine's ease of use, sloppiness among mating parts, and, "zero" blocks is examples of sources of variation in th e Measurement system. In systems making electrical measurements, sources of variation include electrical noise and analog-to-digital converter R Esolution.
    • Operators (People), the ability and/or discipline of a person to follow the written or verbal instructions.
    • test Methods, how the devices was set up, the test fixtures, how the data is recorded, etc.
    • specification, the measurement is reported against a specification or a reference value. The range or the engineering tolerance does not affect the measurement, but is a important factor in evaluating the Viabi Lity of the measurement system.
    • Parts or specimens (what's being measured), some items are easier to be measured than others. A measurement system may is good for measuring steel block length and not to measuring rubber pieces, for example.

There is important aspects of a Gauge r&r:

    • repeatability: The variation in measurements, taken by a, or instrument on the same or replicate item And under the same conditions. [1]
    • reproducibility: The variation induced when different operators, instruments, or laboratories measure the same or Replicate specimen. [1]

Gr&r

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.