Die Drehkreuzmethode

Zusammenfassung

Es wird die vom Verfasser entwickelte elektrische Drehkreuzmethode beschrieben. Die Messanordnung besteht aus zwei Elektrodenpaaren, von denen das eine zur Erzeugung eines elektrischen Feldes dient, während das andere zur Messung des elektrischen Störfeldes verwandt wird. Die Störfunktion beim Drehen der Elektrodenanordnung wird für elliptische Störkörper quantitativ berechnet, und es werden die Bedingungen für die Ortnung von Störkörpern quantitativ diskutiert

Summary

A detailed description of an electrical method is given, developped by the author, concerning the application of two pairs of electrodes rectangular to each other, the one of which is creating an electrical field, whilst the other is measuring the disturbing function when turning the electrode arrangement. The disturbing function has been calculated for spherical and ellipsoidal bodies, taking into account the decrease of the current with increasing distance. It is shown, that it is possible to localize disturbing bodies when turning the electrode arrangement at one or a few places only and without any measuring equipotential lines and their distortions. It is proved that the determination of the direction of disturbing bodies is possible without the knowledge of their distance. It is emphasized that this theory is an other modification may also be applied on corresponding induction methods, based on the application of twe coils rectangular to each other and supplied by low frequency currents.