Radio-frequency identification (rfid) capacitance liquid measurement tag system
US-2024311609-A1 · Sep 19, 2024 · US
US9109940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109940-B2 |
| Application number | US-201213625453-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 24, 2012 |
| Priority date | Apr 3, 2009 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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An apparatus includes a probe configured to be mounted in a tank for at least partial immersion in a liquid. The probe has a body disposed inside the fuel tank. A capacitance-to-digital (CDC) circuit is disposed on the probe in the tank, such that the CDC is disposed inside the fuel tank and is operably connected to the body.
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What is claimed is: 1. A fuel gauging system for use with a fuel tank, the system comprising: a fuel probe configured to be mounted in the fuel tank, the fuel probe having a body disposed inside the fuel tank and at least partially submerged in fuel to form a capacitor with fuel as a dielectric and a capacitance-to-digital circuit (CDC) disposed on the fuel probe inside the fuel tank and operably connected to the body; and a fuel computer unit in communication with the C…
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