Title: Detecting method for bunching DC resistivity
Application Number: 200610017562 Application Date: 2006.03.24
Publication Number: 1821810 Publication Date: 2006.08.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01V3/02,G01V3/00
Applicant(s) Name: High and New Engineering Technology R Address: 450003
Inventor(s) Name: Qiao Huizhong, Leng Yuanbao, Zhu Wenzhong, Wang Ru
Attorney & Agent: zhang fengjiao wang lijun
Abstract:
     This invention discloses a detection method for the bunch DC resistivity, which uses a negative electrode, a measurement reference electrode, a primary electrode, two screening electrodes in the same supplying pole with the primary electrode, an electrode system composed of four mutual acted monitor electrodes to detect a certain sphere and thickness under the earth, in which, the primary and the screen electrodes are connected by leads to form a supply loop together with the negative electrode, the monitor electrodes are symmetrical in pair and connected in short circuit to constitute a measurement loop with the measurement reference electrode. Said method utilizes the repulsion effect of like electric fields underground to keep large current density distribution at a deep place, thus, the underground abnormal substances arise large field changes at the surface of the ground so as to increase the deepness and accuracy of the detection.
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