ISO/TS 21476:2018
Road vehicles — Displacement calibration method of IR-TRACC devices
This document establishes a procedure to calibrate IR-TRACC displacement transducers. Like all other sensors used on dummies, calibration is required. The calibration is carried out with the sensor disassembled from the dummy. The procedure is valid for sensors with analogue as well as digital output.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Displacement Calibration Procedure
5.1 Preparations
5.2 Test equipment set-up, power supply, voltmeter
5.3 Establish starting point
5.4 Forced Lateral Manipulation Test
5.5 Displacement Calibration Data Collection
5.6 Parameter optimization and data review
6 Displacement Calibration Data Processing
6.1 General
6.2 Linearization over calibration range with nominal exponent
6.3 Linearization optimization
6.4 Data analysis and pass criteria calculations
6.4.1 Optimized Nominal Linearity Error
6.4.2 Tubes In-Out Variation
6.4.3 Pass–fail tests and limits
6.4.4 Forced Lateral Manipulation variation
6.5 Example Data
Annex A (informative) Sensor Model Numbers
Annex B (informative) Example Calibration Template
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Displacement Calibration Procedure
5.1 Preparations
5.2 Test equipment set-up, power supply, voltmeter
5.3 Establish starting point
5.4 Forced Lateral Manipulation Test
5.5 Displacement Calibration Data Collection
5.6 Parameter optimization and data review
6 Displacement Calibration Data Processing
6.1 General
6.2 Linearization over calibration range with nominal exponent
6.3 Linearization optimization
6.4 Data analysis and pass criteria calculations
6.4.1 Optimized Nominal Linearity Error
6.4.2 Tubes In-Out Variation
6.4.3 Pass–fail tests and limits
6.4.4 Forced Lateral Manipulation variation
6.5 Example Data
Annex A (informative) Sensor Model Numbers
Annex B (informative) Example Calibration Template
Bibliography