公开(公告)号：WO1979000257A1

公开(公告)日：1979-05-17

申请号：PCT/US1978000132

申请日：1978-10-31

Applicant: GEORGETOWN UNIVERSITY

Inventor： GEORGETOWN UNIVERSITY ,  GREGORY W ,  NOLAN T ,  MORELLI L ,  CAPOTS L ,  MUHLKE J

IPC: G01R27/26

CPC classification number: G01N27/228 ,  G01N33/227

Abstract: The non-linear conductance and capacitance characteristics of electrically non-homogeneous materials over a given frequency range are used to identify and analyze such materials.

公开(公告)号：WO1981003226A1

公开(公告)日：1981-11-12

申请号：PCT/US1981000602

申请日：1981-05-06

Applicant: GEORGETOWN UNIVERSITY

Inventor： GEORGETOWN UNIVERSITY ,  GREGORY W

IPC: G01R33/00

CPC classification number: G01N27/82 ,  G01R27/2617 ,  G01V3/08

Abstract: Pictorial images of selected volume elements of materials are generated by a contactless, non-destructive, susbstantially hazardfree tomographic technique in which the material is brought within the influence of a relatively lowstrength electromagnetic field and subjected to plural preselected frequencies to provide output data which is used to generate an image reflective of the magnetic and/ or electric and/or conductance properties of the selected volume elements. This data has a high volume information content which enables accurate and reproducible identification of the material under investigation. The technique has application in the medical diagnostic field such as for example in aiding in the detection of small areas of cancerous tissue present in a larger mass of healthy tissue.

Abstract translation: 所选择的材料体积元素的图形图像是通过非接触的，非破坏性的，基本上无危险的断层摄影技术产生的，其中材料被带入相对低强度的电磁场的影响并经受多个预选频率以提供输出数据 其用于产生反映所选择的体积元件的磁性和/或电和/或电导性质的图像。 该数据具有大量的信息内容，可以准确和可重复地识别被调查的材料。 该技术在医学诊断领域中的应用，例如帮助检测存在于较大质量的健康组织中的小部分癌组织。