Radar-based method of measuring the level of a material in a con

Details Radar-based method of measuring the level of a material in a con Radar-based method of measuring the level of a material in a con

1998-06-03

1999-10-19

Pihulic, Daniel T.

Communications: directive radio wave systems and devices (e.g.,

Determining distance

Material level within container

G01S 1308

Patent

active

059696664

ABSTRACT:
In measuring the level of a material in a container by a radar-based method the echo profile of the received microwaves is registered and a maximum of the echo profile established for determining the microwaves reflected by the material surface. To avoid false readings in the case of a double echo causing in the echo profile a double blip of two overlapping echo blips, consecutive maximum and minimum values of the slope of the echo profile and their distance values are determined starting from the established maximum in the direction towards smaller distances. The amplitude value of the echo profile assigned to the distance value located in the middle between the distance value of the first minimum slope and the distance value of the next maximum slope is used as the peak value of the first echo blip of the double blip decisive for level measuring.

REFERENCES:
patent: 5614911 (1997-03-01), Otto et al.

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