The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 1986
Filed:
Jul. 19, 1983
Joel M Libove, Berkeley, CA (US);
Jerome R Singer, Berkeley, CA (US);
The Regents of the University of California, Berkeley, CA (US);
Abstract
Flow rates across a flat panel are determined in a non-intrusive manner by a novel technique involving the use of nuclear magnetic resonance (NMR). NMR signals requiring two or more time-spaced nuclear spin excitations are generated in a selective manner, whereby at least two of the excitations are confined to preselected tomographic regions which are non-coextensive in the direction of flow, i.e., at least a portion of each region lies outside the other. The relative positions of the volumes ranges from a partial overlap to a complete separation with a gap in between. Flow detection is derived from signals reflecting movement from one such region to the other during the interval of time between the excitations. Quantitative or qualitative flow data may be obtained, including full range velocity distributions for systems where a range of velocities is present. The process is readily combined with known NMR imaging techniques to provide a two-dimensional array of flow data.