AIR1184B Capacitive Fuel Gauging System Accuracies

Reaffirmed

04/23/2021

Features
Issuing Committee
Scope
Content
This report is intended to identify the various errors typically encountered in capacitance fuel quantity measurement systems. In addition to identification of error sources, it describes the basic factors which cause the errors. When coupled with appraisals of the relative costs of minimizing the errors, this knowledge will furnish a tool with which to optimize gauging system accuracy, and thus, to obtain the optimum overall system within the constraints imposed by both design and budgetary considerations.
Since the subject of fuel measurement accuracy using capacitance based sensing is quite complex, no attempt is made herein to present a fully-comprehensive evaluation of all factors affecting gauging system accuracy. Rather, the major contributors to gauging system inaccuracy are discussed and emphasis is given to simplicity and clarity, somewhat at the expense of completeness.
An overview of capacitive fuel gauging operation can be found in AIR5691. This document also discusses how to analyze fuel gauging system accuracy as a result of combining the effects of the error sources described here.
Meta TagsDetails
DOI
https://doi.org/10.4271/AIR1184B
Pages
25
Citation
SAE International Information Report, Capacitive Fuel Gauging System Accuracies, SAE Standard AIR1184B, Reaffirmed April 2021, Revised August 2016, Issued January 1973, https://doi.org/10.4271/AIR1184B.
Additional Details
Publisher
Published
Apr 23, 2021
Product Code
AIR1184B
Content Type
Information Report
Status
Reaffirmed
Language
English

Revisions