Depth determining system
US7098669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2004 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Oct 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02836
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining the depth of a fluid in a storage tank. The depth of the fluid is determined after the detection of a pulsed wave that is reflected from the top surface of the fluid. The system includes a transducer, an analog-to-digital converter, and a filter. The transducer is configured to sense the reflected pulsed wave and to generate an analog input signal that corresponds to the reflected pulsed wave. The analog-to-digital converter is coupled to the transducer, and configured to convert the analog input signal into a digital input signal. The filter is coupled to the analog-to-digital converter. The filter includes a finite impulse response filter that is configured to receive the digital input signal and to generate a digital output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.