Capacitive Fuel Gauging System Accuracies

Standard:
Revised:
  • 2016-08-12
 
  • CURRENT
Publisher:
  • SAE International
Pages:
25
Scope:

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.

Rationale:

This document is intended as a complement to AIR5691, and gives more detail on error sources which should be considered in the design of capacitive gauging systems. Note that it is completely revised from Issue A, hence no change bars are provided in this issue.

History:
Standard Published Revision Status
AIR1184B 2016-08-12 Latest Revised
2007-12-04 Historical Reaffirmed
1973-01-01 Historical Issued
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$76.00
Add
Mail
$76.00
Members save up to 18% off list price.
Grade
If you are currently using this technical report:
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-10-25
Training / Education
1999-09-27