SENDE- UND EMPFANGSVORRICHTUNG FUER MIKROWELLENSTRAHLUNG ZUR ABBILDUNG VON VERDECKTEN GEGENSTAENDEN

A transmission antenna (4) radiates a microwave field, through a rectangular waveguide-shaped aperture applied against the separating surface (12) between a first medium (1), in which it lies, and a second medium (2), in which an object (3) is sunk or concealed. The microwave radiation reflected by...

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Bibliographische Detailangaben
Hauptverfasser:	PICHOT, CHRISTIAN, PICARD, DOMINIQUE, CHOMMELOUX, LUC, BOLOMEY, JEANARLES
Format:	Patent
Sprache:	fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A transmission antenna (4) radiates a microwave field, through a rectangular waveguide-shaped aperture applied against the separating surface (12) between a first medium (1), in which it lies, and a second medium (2), in which an object (3) is sunk or concealed. The microwave radiation reflected by the object (3) is collected by the aperture of a receiving antenna (5), also rectangular waveguide, shaped, juxtaposed with the radiating aperture of the transmission antenna (4). The radiation collected is measured at a plurality of points by virtue of a series of point-like antennas disposed in the collecting aperture. By virtue of the arrangement of the antennas, the collected radiation is usable as it stands, without having to subtract therefrom the result of a reference measurement. The invention is applied, in particular, to obtain, nondestructively, pictures of the metal reinforcements concealed in reinforced concrete.