Device for determinging the profile of the loading surface of a

Details Device for determinging the profile of the loading surface of a Device for determinging the profile of the loading surface of a

1990-09-06

1991-10-01

Barron, Jr., Gilberto

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

Determining distance

Material level within container

342174, G01S 1334, G01S 740

Patent

active

050537750

ABSTRACT:
The device includes a radar antenna mounted at the inside end of an arm which can be horizontally inserted through the wall of the furnace above the loading surface, an electronic control and measuring unit placed outside the furnace, and one or two waveguides connecting the said antenna to the electronic unit through the arm. The waveguide or waveguides are duplicated by two reference waveguides of the same nature and of the same length but not connected to the said antenna systems in order to provide a forward and return path for a reference signal generated by the electronic unit and which remains correlated with the measurment signal to allow a better identification of the reflected signal.

REFERENCES:
patent: 2554100 (1951-03-01), Miller
patent: 3048838 (1962-08-01), Bretscher
patent: 4737791 (1988-04-01), Jean et al.

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