ISO 9110-1:2020
Hydraulic fluid power — Measurement techniques — Part 1: General measurement principles
This document establishes general principles for the measurement of performance parameters under static or steady-state conditions.
This document provides guidance on the sources and magnitudes of uncertainty to be expected in the calibration of and measurements using hydraulic fluid power components. It describes practical requirements for assessing the capability of the measuring system, and hence the level of uncertainty of the measurement system, or for assisting in developing a system which will meet a prescribed level of uncertainty.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Uncertainty of limit specifications
4.1 General aspects
4.2 Classes of measurement accuracy
5 General measurement considerations and requirements
5.1 Calibration
6 Complete calibration procedure
6.1 Selection of reference standard
6.2 Procedure
7 Instrument calibration uncertainty models
7.1 General
7.2 General procedure
7.3 First order uncertainty model
7.4 First order calibration uncertainty evaluation
7.5 Second order uncertainty model
7.6 Second order calibration uncertainty evaluation
7.7 Third order uncertainty model
7.8 Third order calibration uncertainty evaluation
8 Readability uncertainty evaluation
8.1 General
8.2 Analog readout devices
8.3 Digital readout devices
8.4 Readout device records
9 Assurance control techniques
10 Total measurement uncertainty
10.1 Determination of measurement system uncertainty
Annex A (informative) Measurement system acceptance designated information sheet
Annex B (informative) Uncertainty propagation
Annex C (informative) Best practices tutorial
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Uncertainty of limit specifications
4.1 General aspects
4.2 Classes of measurement accuracy
5 General measurement considerations and requirements
5.1 Calibration
6 Complete calibration procedure
6.1 Selection of reference standard
6.2 Procedure
7 Instrument calibration uncertainty models
7.1 General
7.2 General procedure
7.3 First order uncertainty model
7.4 First order calibration uncertainty evaluation
7.5 Second order uncertainty model
7.6 Second order calibration uncertainty evaluation
7.7 Third order uncertainty model
7.8 Third order calibration uncertainty evaluation
8 Readability uncertainty evaluation
8.1 General
8.2 Analog readout devices
8.3 Digital readout devices
8.4 Readout device records
9 Assurance control techniques
10 Total measurement uncertainty
10.1 Determination of measurement system uncertainty
Annex A (informative) Measurement system acceptance designated information sheet
Annex B (informative) Uncertainty propagation
Annex C (informative) Best practices tutorial
Bibliography