Apparatus for calibrating a fuel level detector
US5635621A · kind A · utility
5Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of calibrating a fuel level detector includes the steps of providing a first capacitor and second capacitor in electrically operable relation to a resistive member; charging the capacitors in free air; recording the discharge cycle of each of the capacitors through the resistive member as free-air clock counts; determining a free-air ratio of the two capacitors by comparing their free-air clock counts; then calibrating the fuel level detector by adjusting one of the capacitive values by a factor of said free-air ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.