Local complex permittivity determn. method for therapy control in diagnostic medicine

The method involves using a special miniaturised coaxial probe having inner and outer conductors (1,2). The conductors are separated by a layer of PMMA (3) in tapered formation at the end of a cylinder of PTFE (4). The probe may be used to measure standing waves or reflections of AC electromagnetic...

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Bibliographische Detailangaben
Hauptverfasser:	HETSCHER, MATTHIAS., 12627 BERLIN, DE, KOHLSMANN, STEPHAN., 12627 BERLIN, DE, KLEFFNER, BERNHARD., 72108 ROTTENBURG, DE, KRAMER, KLAUS DIETER, DR., 14167 BERLIN, DE, BENDE, THOMASHABIL., 72116 MOESSINGEN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEDICAL OR VETERINARY SCIENCE PHYSICS SURGERY TESTING
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Beschreibung
Zusammenfassung:	The method involves using a special miniaturised coaxial probe having inner and outer conductors (1,2). The conductors are separated by a layer of PMMA (3) in tapered formation at the end of a cylinder of PTFE (4). The probe may be used to measure standing waves or reflections of AC electromagnetic field. The field direction may be varied e.g. through a concave contact surface for measurement of the local complex permittivity at a selected depth. Dispersion and absorption may be measured with a reflectance bridge.