Patent · US Active

MFPW radar level gauging with distance approximation

US8730093B2 · kind B2 · utility

2Cited by

17References

26Claims

0Family size

Assignee

ROSEMOUNT TANK RADAR AB · SE

Inventors

Olov Edvardsson · Säter, SE
Anders Jirskog · Huskvarna, SE

Key dates

Filing date	Sep 27, 2011
Grant date	May 20, 2014
Priority date	—
Expiry date	Sep 4, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01S13/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Level gauging including an approximation of a distance to the surface of a product kept in a tank. The approximation is determined by relating an amplitude of a first harmonic of an IF signal with an amplitude of a second harmonic of the IF signal.Basically, each harmonics represents a given distance range. By determining the received power in two or more harmonics, and correlating them to each other, the distance may be estimated. Depending on modulation and other parameters the distance dependence may be very different, and may be selected to suit the application.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.